TRACK ROLLER , GUIDE TRACK WHEELS

At vardhman bearings , we understand continues increasing need for components in automation

We make and stock track rollers and track wheels in different sizes and different shapes for many different industry and different application and in many different materials

Also we make as per customer requirement

Below are type and size of track rollers and track wheels we make and stock
At vardhman bearings













• Supplying specialized track rollers with high quality in linear motion components for the manufacturers of mechanical equipment. • Supplying linear motion components and cam rollers for automatic equipments. • Producing special bearings with various types under the customers’ requirements and to bring up the solutions from design to manufacture. Welcome OEM order
vardhman track rollers can be used in the various tracks with different configuration and in the application that need to linear motion. The track assembled vardhman linear motion rollers can be run safely in various equipments, such as special linear motion track, industrial robot, precision assembly line, overhead conveyer system, automatic equipments, office facilities, transmission machines, medical instruments, printing machines, giant slaughterhouse equipments, logistics transportation system and so on.
Vardhman also can provide various special bearings, rollers and machine components with different accuracy standards and material, can provide better products and services as well as the solutions for professional customers.
The characteristics of vardhman track rollers are in high-speed movement, smooth running, minimum noise level, high reliability and reasonable structure.
The guide system of track applied vardhman track rollers has the distinct features as below:
• High allowable speed ( High movement speed) • Compact structure • Lightest weight • Easy installation • Minimum friction resistance and operational noise level • All components can be interchangeable with alternate one in stock
Track Rollers
·LFR…Track rollers with Gothic arch groove profile ·SG…Track rollers with Gothic arch groove profile·YTGW… Track rollers with “W” groove profile·RE…Journal Bearings, Track rollers with one beveling profile·LV…Track rollers with “V” groove profile·A…/AT…Wire Guides and Straightening Rollers·FR…/LR…Track rollers for Vee bars/Plain rollers·LR…Track rollers with cylindrical or crowned outer ring·B…Support bushings, pivots, studs and bolts·YTA…Diabolo-rollers, Track rollers for tubular rail·ZKLF…Axial angular contact ball bearings for screw mounting·ZKLN…Axial angular contact ball bearings
Linear Motion System
·Single Edge Linear Rails·IDS Linear Guide Rails·ODS Linear Guide Rails·Linear Guideway – Compact Rails
Other Products
Drawn Cup Bearings
Plastic Bearings
Swash Bearings
Series YTM… Rollers for Forklifts
Non-Grinding Rollers

Track rollers with Gothic arch groove - type LFR
• Series LFR rollers are the most widely-use and economy product among the linear motion track rollers, and they can suit to the cylindrical track.• There are two contact points between the roller and track, so the contact function is favorable.• Rollers feature double row angular contact ball bearing in its internal structure design and a thick-walled outer ring, so rollers can accommodate higher loads.• Rollers are made of high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Rollers mount the metal shield (KDD) or rubble seal (NPP) to prevent the dust. VARDHMAN also can provide the rollers with concentric or eccentric pivot. Some types of the rollers can be made from the corrosion resistance stainless steel.
■ Characteristics of the guide system that series LFR rollers are applied :
1. High allowable speed, low resistance, long service lifeFor series LFR rollers, the surface profile of the outer ring is designed as the GOTHIC ARCH.When rollers running, there are two contact points with an angle 60 degrees between the roller and track. So the friction resistance is low and the load is in equality, thus avoiding the stresses concentration and edge effect caused by the error from installation and manufacture, making the track system has the characteristics of high speed, low energy consumption, long service life and minimum noise level.
2. Easy installationAs rollers assembled the concentric or eccentric pivot, installation can be made convenient. To adjust the eccentric one's eccentricity, these rollers can get the fitting preload.
3. Smooth running, minimum error and lower noise levelVARDHMAN special manufacture equipments of machine and inspection facilities make accuracy in the profile of roller. Mature manufacture techniques and critical inspection procedure make all rollers good in the Kea (radial runout) of outer ring and roundness of working surface, so the guide system in motion is smooth running, minimum error and lower running noise level.
Dimensions of yoke type track rollers

Track rollers with Gothic arch groove--type LFR

* Can be relubricated through a hole on the inner ring.
Track Roller No.
Weight
Dimensions (mm)
Load Ratings
Yi-Tong
GERMAN
ITALIAN
≈(g)
dw
d
D
C
B
A
rs
Cw(KN)
Cow(KN)
Fr perm(KN)
LFR 50/4 NPP
-
-
3.5
5
4
13
6
7
8.04
0.2
1.05
0.85
1.15
LFR 50/5-4 KDD
LFR50/5KDD-4
R 50/5-4 ZZ
7.5
4
5
16
7
8
9
0.2
1.2
0.86
1.3
LFR 50/5-4 NPP
LFR50/5NPP-4
R 50/5-4 2RS
7.5
4
5
16
7
8
9
0.2
1.2
0.86
1.3
LFR 50/5 KDD
LFR50/5KDD
R 50/5-6 ZZ
8
6
5
17
7
8
10.5
0.2
1.27
0.82
1.3
LFR 50/5 NPP
LFR50/5NPP
R 50/5-6 2RS
8
6
5
17
7
8
10.5
0.2
1.27
0.82
1.3
LFR 50/8 KDD
LFR50/8KDD
R 50/8-6 ZZ
24
6
8
24
11
11
14
0.3
3.67
2.28
1.3
LFR 50/8 NPP
LFR50/8NPP
R 50/8-6 2RS
24
6
8
24
11
11
14
0.3
3.67
2.28
1.3
LFR 50/8-8 KDD


24
8
8
24
11
11
14.75
0.3
3.67
2.28
1.3
LFR 50/8-8 NPP


24
8
8
24
11
11
14.75
0.3
3.67
2.28
1.3
LFR 30/8 KDD


31
10
8
26.8
11
13
16.7
0.3
3.67
2.28
1.3
LFR 30/8 NPP


31
10
8
26.8
11
13
16.7
0.3
3.67
2.28
1.3
LFR 5201 KDD
LFR5201KDD
R 5201-10 ZZ
68
10
12
35
15.9
15.9
20.65
0.3
8.5
5.1
5.1
LFR 5201 NPP
LFR5201NPP
R 5201-10 2RS
68
10
12
35
15.9
15.9
20.65
0.3
8.5
5.1
5.1
LFR 5301 KDD
LFR5301KDD
R 5301-10 ZZ
130
10
12
42
19
19
24
0.6
13
7.7
7.5
LFR 5301 NPP
LFR5301NPP
R 5301-10 2RS
130
10
12
42
19
19
24
0.6
13
7.7
7.5
LFR 5301-20 KDD


125
20
12
42
19
19
28
0.6
13
7.7
7.5
LFR 5301-20 NPP


125
20
12
42
19
19
28
0.6
13
7.7
7.5
LFR 5302 KDD
LFR5302KDD
R 5302-10 ZZ
163
10
15
47
19
19
26.65
1
16.2
9.2
6.2
LFR 5302 NPP
LFR5302NPP
R 5302-10 2RS
163
10
15
47
19
19
26.65
1
16.2
9.2
6.2
LFR 5201-12 KDD
LFR5201-12KDD
R 5201-12 ZZ
68
12
12
35
15.9
15.9
21.75
0.3
8.4
5
5.1
LFR 5201-12 NPP
LFR5201-12NPP
R 5201-12 2RS
68
12
12
35
15.9
15.9
21.75
0.3
8.4
5
5.1
LFR 5201-14 KDD
LFR5201-14KDD
R 5201-14 ZZ
107
14
12
39.9
18
20
24
0.3
8.9
5
6.7
LFR 5201-14 NPP
LFR5201-14NPP
R 5201-14 2RS
107
14
12
39.9
18
20
24
0.3
8.9
5
6.7
LFR 5201-10.40 KDD


115
10
12
39.9
18
20
22
0.3
8.9
5
6.7
LFR 5201-10.40 NPP


115
10
12
39.9
18
20
22
0.3
8.9
5
6.7
LFR 5204-16 KDD*
LFR5204-16KDD
R 5204-16 ZZ
195
16
20
52
20.6
22.6
31.5
0.6
16.8
9.5
12.1
LFR 5204-16 NPP*
LFR5204-16NPP
R 5204-16 2RS
195
16
20
52
20.6
22.6
31.5
0.6
16.8
9.5
12.1
LFR 5206-20 KDD*
LFR5206-20KDD
R 5206-20 ZZ
435
20
25
72
23.8
25.8
41
0.6
29.5
16.6
20.7
LFR 5206-20 NPP*
LFR5206-20NPP
R 5206-20 2RS
435
20
25
72
23.8
25.8
41
0.6
29.5
16.6
20.7
LFR 5206-25 KDD*
LFR5206-25KDD
R 5206-25 ZZ
425
25
25
72
23.8
25.8
43.5
0.6
29.2
16.4
23.1
LFR 5206-25 NPP*
LFR5206-25NPP
R 5206-25 2RS
425
25
25
72
23.8
25.8
43.5
0.6
29.2
16.4
23.1
LFR 5207-30 KDD*
LFR5207-30KDD
R 5207-30 ZZ
660
30
30
80
27
29
51
1
38
20.8
21.4
LFR 5207-30 NPP*
LFR5207-30NPP
R 5207-30 2RS
660
30
30
80
27
29
51
1
38
20.8
21.4
LFR 5208-40 KDD*
LFR5208-40KDD
R 5208-40 ZZ
1360
40
40
98
36
38
62.5
1
54.8
29
55
LFR 5208-40 NPP*
LFR5208-40NPP
R 5208-40 2RS
1360
40
40
98
36
38
62.5
1
54.8
29
55
LFR 5308-50 KDD*
LFR5308-50KDD
R 5308-50 ZZ
1400
50
40
110
44
46
72.5
1.1
53
39.5
69
LFR 5308-50 NPP*
LFR5308-50NPP
R 5308-50 2RS
1400
50
40
110
44
46
72.5
1.1
53
39.5
69

Track rollers with Gothic arch groove - type SG
The function of series SG rollers is same as the series LFR rollers. But they are mainly used in the flat track and in the condition required compact structure. After rollers are installed to the slider, the shaft will be not or seldom over the roller's side planes.
Dimensions of SG track rollers

Track rollers with Gothic arch groove - type SG

Track Roller No.
Weight
Dimensions (mm)
Load Ratings
YI-TONG
≈(g)
dw
d
D
C
B
L
d2
H
Cw (KN)
Cow (KN)
Fr perm (KN)
SG15
8
6
5
17
8
5.75
20.46
8.6
1
1.27
0.82
1.3
SG15-10
9
10
5
17
8
5.75
25.5
8.6
1
1.27
0.82
1.3
SG20
25
8
6
24
11
7.25
28.62
11.1
1.2
3.4
1.7
1.3
SG25
49
10
8
30
14
8.5
35.77
13
1.5
3.67
2.28
1.3
SG35
136
12
12
42
19
12.5
48.93
18
1.5
8.5
5.1
5.1
SG15N
8
6
5
17
8
5.75
20.46
8.6
0.5
1.27
0.82
1.3
SG20N
25
8
6
24
11
7.25
28.62
11.1
0.7
3.4
1.7
1.3
SG25N
49
10
8
30
14
8.5
35.77
13
1
3.67
2.28
1.3
SG35N
136
12
12
42
19
12.5
48.93
18
1
8.5
5.1
5.1
LFR 50/5-4 N
8
4
5
16
7
5
18
6.9
0
2.02
0.93
1.3
LFR 50/5-5
8
5
5
17
7
5
20
6.9
0
2.02
0.93
1.3
LFR 50/5 N
8
6
5
17
7
5
21
6.9
0
2.02
0.93
1.3
LFR 50/8 N
25
6
8
24
11
7
28
12.3
0
3.67
2.28
1.3
LFR 50/8-8 N
25
8
8
24
11
7
29
12.3
0
3.67
2.28
1.3


Track rollers with "W" profile - type YTGW
• YTGW Guide Wheels are the main components of the Linear Motion system, they can be widely used in the industrial robot, cutting machine, motion track, production flow and so on.
• The surface of outer ring is the "W" profile formed by the two "V" with an angle of 90 degrees. The internal or external side face can be matched separately with the concave or protrudable track that both have a "V' profile with the angle of 90 degrees, and also the internal side face can be matched well with the cylindrical track.
• Wheels feature the internal design of double row angular contact ball bearing and a thick-walled outer ring, so the wheels can accommodate higher loads.
• Wheels are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Wheels mantle the metal shield or rubber seal (suffix X) to prevent the dust. Vardhman also can provide the wheels with the concentric or eccentric bushings, as well as the wheels made from the corrosion resistance stainless steel.
• Characteristics of the guide system that series W wheels are applied :
1. Low resistance, long service life, widely-use After precision ground, the roughness of working surface of the series W wheels is fine and the angle of 90 degrees is accurate. The wheels have well parallelism between the "W" profile groove and the mount planes of inner ring relatively. When the wheels running, the stresses between the wheel and track is in equality and the friction resistance is low.
2. Easy installationAfter wheels assembled the concentric or eccentric bushing, installation can be made convenient. To adjust the eccentric one's eccentricity, the wheels can get the fitting preload.
Dimensions of guide wheels
http://www.vardhmanbearings.comTrack Rollers series YTGW…W Guide Wheels



* Wheels are made of the stainless steel ( 440C ).
Guide Wheel No.
Weight
Dimensions (mm)
Load Ratings
YI-TONG
≈(g)
d
D
B
A1
A2
rs
Cw (KN)
Cow(KN)
YTG W0
5
4
14.84
6.35
5.94
9.12
0.3
1
0.5
YTG W0X
5
4
14.84
6.35
5.94
9.12
0.3
1
0.5
YTG W1
11
4.763
19.56
7.87
7.93
11.86
0.3
2.2
1
YTG W1X
11
4.763
19.56
7.87
7.93
11.86
0.3
2.2
1
YTG W2
38
9.525
30.73
11.1
12.7
18.24
0.3
4.9
2.5
YTG W2X
38
9.525
30.73
11.1
12.7
18.24
0.3
4.9
2.5
YTG W3
130
12
45.72
15.88
19.05
26.98
0.6
9.4
4.9
YTG W3X
130
12
45.72
15.88
19.05
26.98
0.6
9.4
4.9
YTG W4
280
15
59.94
19.05
25.4
34.93
1
14.8
8.2
YTG W4X
280
15
59.94
19.05
25.4
34.93
1
14.8
8.2
YTG W4XL
580
22
75.39
25.4
31.75
44.45
1.1
20.6
14.3
YTG W4XXL
580
22
75.39
25.4
31.75
44.45
1.1
20.6
14.3
YTG W1SSX*
11
4.763
19.56
7.87
7.93
11.86
0.3
2.2
1
YTG W2SSX*
38
9.525
30.73
11.1
12.7
18.24
0.3
4.9
2.5
YTG W3SSX*
130
12
45.72
15.88
19.05
26.98
0.6
9.4
4.9
YTG W4SSX*
280
15
59.94
19.05
25.4
34.93
1
14.8
8.2



Journal Bearings, Track rollers with one beveling profile - type RE
• Journal Bearings are used for the LINEAR GUIDANCE system, in which the track has a " V " profile groove with an angle of 70 degrees. .• Journal Bearings feature the internal design of high precision deep groove ball bearings and a thick-walled outer ring, so bearings can accommodate higher load carrying capacity.• Bearings are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Bearings take the metal shield ( ZZ ) or rubber seal ( 2RS ) to prevent the dust vardhman also can provide the bearings with concentric or eccentric pivot.
Characteristics of linear guidance system that Journal Bearings are applied :
1. High speed, minimum noise levelJournal Bearings take the internal design of deep groove ball bearings, and the roughness of its working surface is fine, so the bearing features low friction resistance and swift speed up in the short time when running. 2. Commonly uses, easy installationThe bearings can be enhanced their commonly uses with mounting various sizes concentric pivot and eccentric pivot having different eccentricity, and it is easy to make the installation and to adjust the preload. 3. Smooth and accurate running, long service lifevardhman special manufacture equipments of machine and inspection facilities make accuracy in the angle of bearings' profile, so the bearing and track can be matched well. Mature manufacture techniques and critical inspection procedure make all bearings in the Kea (radial runout) of outer ring within 0.01mm, so the guide system has the characteristics of long service life and smooth running.
Journal Bearings, Track rollers with one beveling profile - type RE

Track roller No.
Number of the construction unit
Weight
Dimensions(mm)
Load ratings
Yi-Tong


≈(g)
B
D
E
d
C
α
Cw(KN)
Cow(KN)
RE701ZZ
BHJ-13-C
13 C/E
3
4
9.63
12.7
4
0.35
35
0.71
0.27
RE701.2RS
RE702ZZ
BHJ-25-C
25 C/E
17
7
20.4
25
8
1
35
3.3
1.36
RE702.2RS
RE703ZZ
BHJ-34-C
34 C/E
40
9
27.17
34
10
1
35
6.04
2.68
RE703.2RS
RE704ZZ
BHJ-54-C
54 C/E
80
14
42
54
14
1.5
35
9.5
4.8
RE704.2RS
RE901ZZ


3
4
9.63
12.7
4
0.35
45
0.71
0.27
RE901.2RS
RE902ZZ


17
7
20.4
25
8
1
45
3.3
1.36
RE902.2RS
RE903ZZ


40
9
27.17
34
10
1
45
6.04
2.68
RE903.2RS
RE807.2RS


12
6
18.5
22
7
0.5
40
2.2
0.9


Track rollers with "V" groove profile - Vee'd Bearings • Series LV bearings can be widely used in the cylindrical track or " V " profile track with an angle of 120 degrees. Different from the series LFR bearings, series LV bearings are more adaptable to the different track sizes. Each type can be applied with a larger range of track diameters. They are widely used for the heavy-duty track, mobile equipment, wire straightening machine and so on.• Bearings take the internal structure design of double row angular contact ball bearings and have a thick-walled outer ring, so the bearings can accommodate higher loads.• Bearings are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Bearings take the metal shield to prevent the dust. VARDHMAN also can provide the bearings with concentric or eccentric pivot.• The bearings have an undercut on its bottom of groove on the outer ring. If the application disallow this undercut, VARDHMAN can meet customer's technical requirement. Also VARDHMAN can accept the bearings with various angle of " V " profile.
■ Characteristics of the guide system that series LV bearings are applied :
1. Low resistance, long service life, widely-uses The roughness of the " V " profile surface can be reached to Ra0.32 processed by precision grind. The bearings have well parallelism between the "V" profile groove and the mount planes of inner ring relatively. When bearings working, the stresses between the bearing and cylindrical track is in equality and the friction resistance is low.
2. Easy installationAfter bearing assembled the concentric or eccentric pivot, installation will be convenient. To adjust the eccentric one's eccentricity, the bearing can get the fitting proload.
Dimensions of VEE bearings

Track rollers with “V” groove profile - Vee’d Bearings

Track Roller No.
Weight
Dimensions (mm)
Load Ratings
Yi-Tong
≈(g)
dw
d
D
b
C
A
α
rs
Cw (KN)
Cow(KN)
LV 20/7 ZZ
17
10
7
22
11
11
14.5
120
0.3
3.78
2.05
LV 20/8 ZZ
49
10
8
30
14
14
18.1
120
0.3
5.13
2.67
LV 202-38 ZZ
87
10
15
38
17
17
22.25
120
0.5
8.47
5.37
LV 202-40 ZZ
110
10
15
40
18
18
22
120
0.5
8.47
5.37
LV 201 ZZ
130
20
12
41
20
20
28
120
0.3
8.47
5.37
LV 201-14.2RS
107
14
12
39.9
20.1
18
24
100
0.5
8.9
5
LV 202-41 ZZ
116
20
15
41
20
20
28
120
0.5
8.47
5.37
LV 203 ZZ
325
20
17
58
25
25
35
120
0.5
14.66
9.1
LV 204-57 ZZ
290
30
20
57
22
22
41
120
0.6
14.66
9.1
LV 204-58 ZZ
310
30
20
58
25
25
41
120
0.6
14.66
9.1

Wire Guides and Straightening Rollers - type A or AT


Field of Application :The straightening of cables, strips and wires is performed in steps with successive stages until the final product is obtained. To rationalize the handling between the different steps the material is stocked on reels or on bobbins and takes forms which are not natural. For every production step, it is therefore necessary to carry out the inverse process by taking the material off its support. At that moment, the straightening operation takes place. It may be divided into three steps: The straightening, consisting of putting the material back into its original shape. The operation is carried out by the first straightening rollers.The removal of the residual constraint in the material, due to the winding on the bobbin. This operation is performed by the rollers located in the central part of the straightener.The forming of the wire carried out by the last rollers on the straightener, generally placed at an angle of 90°compared to the angle of the first rollers.
Often it is necessary to combine these three steps. That is the reason why the straightener uses 5, 7, 9, 11 or even 13 rollers placed in two planes. The manufacturing precision of the roller has a major influence on the quality of the final product (wires) as well as on the service life of the rollers. It is therefore essential that the rectified "V" notch on the outer ring has the same geometric characteristics and precision as the rest of the bearing. For this reason, the notch on a VARDHMAN roller is precise machined prior to bearing assembly. Grinding this notch on an assembled standard bearing is risky, as the bearing may be damaged. An acceptable uniformity and geometrical precision can thus not be guaranteed. The service life of the roller is much shorter and the quality of wire drawing suffers accordingly. Among numerous applications using thread guides and straightening rollers, VARDHMAN has managed to make a name for itself in the field of specialized wire drawing companies, producing steel cables for the tire industry.

■The following machines use the same type of special rollers:
• Machine tools for fiberglass cables (lawn mowers)• Machines for spring manufacturing• Machines for metal wires• Machines for spooling, un-spooling and rewinding• Fine and high precision wire drawingvardhman is equipped with all the necessary tooling for the production of such bearings.
Dimensions of Straightening Rollers
Wire Guides and Straightening Rollers - type A or AT
* Two rows of balls
Track Roller No.
Weight
Dimensions (mm)
Load Ratings
YI-TONG
≈(g)
d
D
D1
B
Ra
α
R
Cw (KN)
Cow(KN)
A507.2Z
11
5
21
19
6
0.5
90
0.3
2.2
0.89
A507.2RS
11
5
21
19
6
0.5
90
0.3
2.2
0.89
A603.2Z
11
6
21
19
6
0.5
90
0.3
2.2
0.89
A603.2RS
11
6
21
19
6
0.5
90
0.3
2.2
0.89
A806.2Z
19
8
26
23
7
0.5
90
0.3
3.3
1.37
A806.2RS
19
8
26
23
7
0.5
90
0.3
3.3
1.37
A1001.2Z
31
10
30
27
8
0.5
90
0.3
4.55
1.97
A1001.2RS
31
10
30
27
8
0.5
90
0.3
4.55
1.97
A1002.2Z
46
10
35
31
9
0.5
90
0.6
6
2.68
A1002.2RS
46
10
35
31
9
0.5
90
0.6
6
2.68
A1500.2Z
104
15
47
41
11
0.5
90
0.6
7.6
3.7
A1500.2Z
104
15
47
41
11
0.5
90
0.6
7.6
3.7
AT8E00*
34
8
25
20.4
14
0.7
70
2
5.09
2.6



Track rollers for Vee bars/Plain rollers - type FR/LR

The backlash setting and the pre-tensioning of the rollers takes place via the eccentric hub of the rollers of the series FR.., FR..R or LR.., LR..R. The FR..Z and LR..Z series are the concentric models. In the eccentric rollers, the inner bolts are provided with two holes. These allow for the adjustment of the backlash. If a roller is located in its zero position, the teeth backlash will be the standard value of 0.05 mm flank clearance. The service life of the system will be reduced by excessive tensioning. With too little tension the rollers will not run, or will wear due to the poor meshing.
Friction
The roller guides have a very low coefficient of friction. This value is slightly increased by the fitting of wipers to the rails.
Corrosion resistance
Elements of the series with the suffix ..R are available in stainless steel.
Dimensions of plain rollers
Track rollers for Vee bars/Plain rollers – type FR/LR

YI-TONG
Roller No.
Dimensions (mm)
Load Ratings
A
B
C
D
e
F
G
H
L
D1
D2
D3
D4
D5
d
d1
DP
R
Cw (KN)
Cow(KN)
ROLLER
FOR
VEE
BARS
FR10
22.62
10.5
10
1
1
2
6.8
15.4
30
6.4
15
20.8
11
42
9
2.6
3
200
4.9
5.3
FR10Z
22.62
10.5
10
1
0
2
6.8
15.4
30
6.4
15
20.8
11
42
9
2.6
3
200
4.9
5.3
FR15
29.65
12
12
1
1
2
9
18.5
35
8.4
15
23.8
14
53
14
2.6
3
250
7.2
6.8
FR15Z
29.65
12
12
1
0
2
9
18.5
35
8.4
15
23.8
14
53
14
2.6
3
250
7.2
6.8
FR20
36.2
16
15
1
1
3
11
22.5
46
10.5
20
22.7
18
63
20
2.6
3
300
10.2
9.5
FR20Z
36.2
16
15
1
0
3
11
22.5
46
10.5
20
22.7
18
63
20
2.6
3
300
10.2
9.5
FR22
39.4
16
15
1
2
3
11
27.5
46
10.5
20
33
18
70
20
2.6
3
300
24.6
16.2
FR22Z
39.4
16
15
1
0
3
11
27.5
46
10.5
20
33
18
70
20
2.6
3
300
24.6
16.2
FR25
43.42
20.5
20
1
1
3.5
13
27.5
60
13
25
35.6
20
77
24
4.1
4.5
360
16.3
15
FR25Z
43.42
20.5
20
1
0
3.5
13
27.5
60
13
25
35.6
20
77
24
4.1
4.5
360
16.3
15
FR35
61.25
30
25
1
1
7.5
17.5
42
84
17
40
56.9
30
107
35
4.1
4.5
500
28.4
32
FR35Z
61.25
30
25
1
0
7.5
17.5
42
84
17
40
56.9
30
107
35
4.1
4.5
500
28.4
32
PLAIN
ROLLER
LR10

10.5
10
1
1
2
6.8
15.4
30
6.4
15
20.8
11
47

2.6
3
500
4.9
5.3
LR10Z

10.5
10
1
0
2
6.8
15.4
30
6.4
15
20.8
11
47

2.6
3
500
4.9
5.3
LR15

12
12
1
1
2
9
18.5
35
8.4
15
23.8
14
47

2.6
3
500
7.2
6.8
LR15Z

12
12
1
0
2
9
18.5
35
8.4
15
23.8
14
47

2.6
3
500
7.2
6.8
LR20

16
15
1
1
3
11
22.5
46
10.5
20
22.7
18
72

2.6
3
500
10.2
9.5
LR20Z

16
15
1
0
3
11
22.5
46
10.5
20
22.7
18
72

2.6
3
500
10.2
9.5
LR25

20.5
20
1
1
3.5
13
27.5
60
13
25
35.6
20
85

4.1
4.5
500
16.3
15
LR25Z

20.5
20
1
0
3.5
13
27.5
60
13
25
35.6
20
85

4.1
4.5
500
16.3
15
LR35

30
25
1
1
7.5
17.5
42
84
17
40
56.9
30
100

4.1
4.5
500
28.4
32
LR35Z

30
25
1
0
7.5
17.5
42
84
17
40
56.9
30
100

4.1
4.5
500
28.4
32



Track rollers with cylindrical or crowned outer ring - type LR
• Series LR rollers are also called CAM ROLLERS, can be used in the heavy loads track or used as an idler wheel. They are widely used in the particular application that the friction should be reduced.• The outer diameter surface of rollers is shaped to the crowned runner surface with R500 (suffix U), so make the stresses well when rollers working.• Rollers take the internal structure design of deep groove ball bearings or double row angular contact ball bearings and have a particularly thick-walled outer ring, so the rollers can accommodate higher loads.• Rollers are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high -grade and multi-purposes grease. Rollers take the metal shield (suffix KDD) or rubble seal (suffix NPP) to prevent the dust. VARDHMAN also can provide the rollers with concentric or eccentric pivot. Some types of the rollers can be made from the corrosion resistance stainless steel.
■ Characteristics of the guide system that series LR rollers are applied :1. Low resistance, long service life, widely-use Being cam rollers with crowned runner surface R500, make its stresses in well-distributed between rollers and track when working, thus the stresses centralization are avoided, the friction resistance are reduced and the service life of rollers have been improved a lot. Most of the double row cam rollers can be relubricated through the filling hole on the inner ring to adapt the adverse working conditions.2. Easy installationAfter rollers assembled the concentric or eccentric pivot, installation can be made convenient. To adjust the eccentric one's eccentricity, the rollers can get the fitting preload. 3. Smooth running, minimum errorBesides we produce the series LR cam rollers according to the standard of rolling bearings, we also make the strict control on the rotary accuracy of outer ring in order to meet special working mode that inner ring is fixed while outer ring running.

Track rollers with cylindrical or crowned outer ring – CAM ROLLERS
*Series LR52... and LR53... can be re-lubricated through a hole in the inner ring.
Track Roller No.
Weight
Dimensions
Load Ratings
Fatigue Limit Load
Speed
Yi-Tong
GERMAN
EURO
≈(g)
D
d
B
C
R
Rs
Cw(N)
Cow(N)
Puw(N)
nD seals
nD shields
LR 604 NPP
LR604NPP

10
13
4
4
4
-
0.2
860
350
7
24000
35000
LR 604 NPPU
LR604NPPU

10
13
4
4
4
500
0.2
860
350
7
24000
35000
LR 604 KDD
LR604KDD

10
13
4
4
4
-
0.2
860
350
7
24000
35000
LR 604 KDDU
LR604KDDU

10
13
4
4
4
500
0.2
860
350
7
24000
35000
LR 605 NPP
LR605NPP

10
16
5
5
5
-
0.2
1190
490
10
23000
33000
LR 605 NPPU
LR605NPPU

10
16
5
5
5
500
0.2
1190
490
10
23000
33000
LR 605 KDD
LR605KDD

10
16
5
5
5
-
0.2
1190
490
10
23000
33000
LR 605 KDDU
LR605KDDU

10
16
5
5
5
500
0.2
1190
490
10
23000
33000
LR 606 NPP
LR606NPP

10
19
6
6
6
-
0.3
1740
700
40
22000
31000
LR 606 NPPU
LR606NPPU

10
19
6
6
6
500
0.3
1740
700
40
22000
31000
LR 606 KDD
LR606KDD

10
19
6
6
6
-
0.3
1740
700
40
22000
31000
LR 606 KDDU
LR606KDDU

10
19
6
6
6
500
0.3
1740
700
40
22000
31000
LR 607 NPP
LR607NPP

10
22
7
6
6
-
0.3
2130
870
46
20000
29000
LR 607 NPPU
LR607NPPU

10
22
7
6
6
500
0.3
2130
870
46
20000
29000
LR 607 KDD
LR607KDD

10
22
7
6
6
-
0.3
2130
870
46
20000
29000
LR 607 KDDU
LR607KDDU

10
22
7
6
6
500
0.3
2130
870
46
20000
29000
LR 608 NPP
LR608NPP

20
24
8
7
7
-
0.3
2750
1250
58
19000
28000
LR 608 NPPU
LR608NPPU

20
24
8
7
7
500
0.3
2750
1250
58
19000
28000
LR 608 KDD
LR608KDD

20
24
8
7
7
-
0.3
2750
1250
58
19000
28000
LR 608 KDDU
LR608KDDU

20
24
8
7
7
500
0.3
2750
1250
58
19000
28000
LR 6000 NPP
LR6000NPP

20
28
10
8
8
-
0.3
3650
1700
52
17000
24000
LR 6000 NPPU
LR6000NPPU

20
28
10
8
8
500
0.3
3650
1700
52
17000
24000
LR 6000 KDD
LR6000KDD

20
28
10
8
8
-
0.3
3650
1700
52
17000
24000
LR 6000 KDDU
LR6000KDDU

20
28
10
8
8
500
0.3
3650
1700
52
17000
24000
LR 6001 NPP
LR6001NPP

30
30
12
8
8
-
0.3
4300
2100
77
16000
22000
LR 6001 NPPU
LR6001NPPU

30
30
12
8
8
500
0.3
4300
2100
77
16000
22000
LR 6001 KDD
LR6001KDD

30
30
12
8
8
-
0.3
4300
2100
77
16000
22000
LR 6001 KDDU
LR6001KDDU

30
30
12
8
8
500
0.3
4300
2100
77
16000
22000
LR 200 NPP
LR200NPP

50
32
10
9
9
-
0.6
4350
2130
88
13000
17000
LR 200 NPPU
LR200NPPU
361200R
50
32
10
9
9
500
0.6
4350
2130
88
13000
17000
LR 200 KDD
LR200KDD

50
32
10
9
9
-
0.6
4350
2130
88
13000
17000
LR 200 KDDU
LR200KDDU

50
32
10
9
9
500
0.6
4350
2130
88
13000
17000
LR 201 NPP
LR201NPP

50
35
12
10
10
-
0.6
5600
2700
112
12000
15000
LR 201 NPPU
LR201NPPU
361201R
50
35
12
10
10
500
0.6
5600
2700
112
12000
15000
LR 201 KDD
LR201KDD

50
35
12
10
10
-
0.6
5600
2700
112
12000
15000
LR 201 KDDU
LR201KDDU

50
35
12
10
10
500
0.6
5600
2700
112
12000
15000
LR 201-15 NPP

LR 201 RR
70
35
12
15
10
-
0.6
5600
2700
112
12000
15000
LR 201-15 NPPU

LR 201 RRU
70
35
12
15
10
500
0.6
5600
2700
112
12000
15000
LR 201-15 KDD


70
35
12
15
10
-
0.6
5600
2700
112
12000
15000
LR 201-15 KDDU


70
35
12
15
10
500
0.6
5600
2700
112
12000
15000
LR 202 NPP
LR202NPP

70
40
15
11
11
-
0.6
6500
3300
136
11000
13000
LR 202 NPPU
LR202NPPU
361202R
70
40
15
11
11
500
0.6
6500
3300
136
11000
13000
LR 202 KDD
LR202KDD

70
40
15
11
11
-
0.6
6500
3300
136
11000
13000
LR 202 KDDU
LR202KDDU

70
40
15
11
11
500
0.6
6500
3300
136
11000
13000
LR 202-14 NPP
LR202RR
LR 202 RR
80
40
15
14.4
11
-
0.6
6500
3300
136
11000
13000
LR 202-14 NPPU
LR202RRU
LR 202 RRU
80
40
15
14.4
11
500
0.6
6500
3300
136
11000
13000
LR 202-14 KDD


80
40
15
14.4
11
-
0.6
6500
3300
136
11000
13000
LR 202-14 KDDU


80
40
15
14.4
11
500
0.6
6500
3300
136
11000
13000
LR 203 NPP
LR203NPP

110
47
17
12
12
-
0.6
8400
4400
183
9000
12000
LR 203 NPPU
LR203NPPU
361203R
110
47
17
12
12
500
0.6
8400
4400
183
9000
12000
LR 203 KDD
LR203KDD

110
47
17
12
12
-
0.6
8400
4400
183
9000
12000
LR 203 KDDU
LR203KDDU

110
47
17
12
12
500
0.6
8400
4400
183
9000
12000
LR 204 NPP
LR204NPP

150
52
20
14
14
-
1
10500
5600
233
8000
10000
LR 204 NPPU
LR204NPPU
361204R
150
52
20
14
14
500
1
10500
5600
233
8000
10000
LR 204 KDD
LR204KDD

150
52
20
14
14
-
1
10500
5600
233
8000
10000
LR 204 KDDU
LR204KDDU

150
52
20
14
14
500
1
10500
5600
233
8000
10000
LR 205 NPP
LR205NPP

230
62
25
15
15
-
1
12500
7100
291
7000
8500
LR 205 NPPU
LR205NPPU
361205R
230
62
25
15
15
500
1
12500
7100
291
7000
8500
LR 205 KDD
LR205KDD

230
62
25
15
15
-
1
12500
7100
291
7000
8500
LR 205 KDDU
LR205KDDU

230
62
25
15
15
500
1
12500
7100
291
7000
8500
LR 206 NPP
LR206NPP

330
72
30
16
16
-
1
16600
9600
391
5500
7500
LR 206 NPPU
LR206NPPU
361206R
330
72
30
16
16
500
1
16600
9600
391
5500
7500
LR 206 KDD
LR206KDD

330
72
30
16
16
-
1
16600
9600
391
5500
7500
LR 206 KDDU
LR206KDDU

330
72
30
16
16
500
1
16600
9600
391
5500
7500
LR 207 NPP
LR207NPP

400
80
35
17
17
-
1.1
20200
11900
490
4500
6300
LR 207 NPPU
LR207NPPU
361207R
400
80
35
17
17
500
1.1
20200
11900
490
4500
6300
LR 207 KDD
LR207KDD

400
80
35
17
17
-
1.1
20200
11900
490
4500
6300
LR 207 KDDU
LR207KDDU

400
80
35
17
17
500
1.1
20200
11900
490
4500
6300
LR 208 NPP
LR208NPP

450
85
40
18
18
-
1.1
22800
13600
530
4000
5000
LR 208 NPPU
LR208NPPU

450
85
40
18
18
500
1.1
22800
13600
530
4000
5000
LR 208 KDD
LR208KDD

450
85
40
18
18
-
1.1
22800
13600
530
4000
5000
LR 208 KDDU
LR208KDDU

450
85
40
18
18
500
1.1
22800
13600
530
4000
5000
LR 209 NPP
LR209NPP

500
90
45
19
19
-
1.1
22500
13700
564
3600
4500
LR 209 NPPU
LR209NPPU

500
90
45
19
19
500
1.1
22500
13700
564
3600
4500
LR 209 KDD
LR209KDD

500
90
45
19
19
-
1.1
22500
13700
564
3600
4500
LR 209 KDDU
LR209KDDU

500
90
45
19
19
500
1.1
22500
13700
564
3600
4500
LR 50/5 NPP
LR50/5NPP

10
17
5
7
7
-
0.2
1650
950
39
12000
16000
LR 50/5 NPPU
LR50/5NPPU

10
17
5
7
7
500
0.2
1650
950
39
12000
16000
LR 50/5 KDD
LR50/5KDD

10
17
5
7
7
-
0.2
1650
950
39
12000
16000
LR 50/5 KDDU
LR50/5KDDU

10
17
5
7
7
500
0.2
1650
950
39
12000
16000
LR 50/6 NPP
LR50/6NPP

20
19
6
9
9
-
0.3
2650
1310
54
11000
15000
LR 50/6 NPPU
LR50/6NPPU

20
19
6
9
9
500
0.3
2650
1310
54
11000
15000
LR 50/6 KDD
LR50/6KDD

20
19
6
9
9
-
0.3
2650
1310
54
11000
15000
LR 50/6 KDDU
LR50/6KDDU

20
19
6
9
9
500
0.3
2650
1310
54
11000
15000
LR 50/7 NPP
LR50/7NPP

20
22
7
10
10
-
0.3
3300
1690
69
10000
14000
LR 50/7 NPPU
LR50/7NPPU

20
22
7
10
10
500
0.3
3300
1690
69
10000
14000
LR 50/7 KDD
LR50/7KDD

20
22
7
10
10
-
0.3
3300
1690
69
10000
14000
LR 50/7 KDDU
LR50/7KDDU

20
22
7
10
10
500
0.3
3300
1690
69
10000
14000
LR 50/8 NPP
LR50/8NPP

30
24
8
11
11
-
0.3
4200
2360
120
10000
14000
LR 50/8 NPPU
LR50/8NPPU

30
24
8
11
11
500
0.3
4200
2360
120
10000
14000
LR 50/8 KDD
LR50/8KDD

30
24
8
11
11
-
0.3
4200
2360
120
10000
14000
LR 50/8 KDDU
LR50/8KDDU

30
24
8
11
11
500
0.3
4200
2360
120
10000
14000
LR 5000 NPP
LR5000NPP

30
28
10
12
12
-
0.3
4750
2850
118
9000
13000
LR 5000 NPPU
LR5000NPPU

30
28
10
12
12
500
0.3
4750
2850
118
9000
13000
LR 5000 KDD
LR5000KDD

30
28
10
12
12
-
0.3
4750
2850
118
9000
13000
LR 5000 KDDU
LR5000KDDU

30
28
10
12
12
500
0.3
4750
2850
118
9000
13000
LR 5001 NPP
LR5001NPP

30
30
12
12
12
-
0.3
4950
3100
128
8500
11000
LR 5001 NPPU
LR5001NPPU

30
30
12
12
12
500
0.3
4950
3100
128
8500
11000
LR 5001 KDD
LR5001KDD

30
30
12
12
12
-
0.3
4950
3100
128
8500
11000
LR 5001 KDDU
LR5001KDDU

30
30
12
12
12
500
0.3
4950
3100
128
8500
11000
LR 5002 NPP
LR5002NPP

50
35
15
13
13
-
0.3
6500
4100
170
7000
10000
LR 5002 NPPU
LR5002NPPU

50
35
15
13
13
500
0.3
6500
4100
170
7000
10000
LR 5002 KDD
LR5002KDD

50
35
15
13
13
-
0.3
6500
4100
170
7000
10000
LR 5002 KDDU
LR5002KDDU

50
35
15
13
13
500
0.3
6500
4100
170
7000
10000
LR 5003 NPP
LR5003NPP

70
40
17
14
14
-
0.3
7700
5200
214
6000
9000
LR 5003 NPPU
LR5003NPPU

70
40
17
14
14
500
0.3
7700
5200
214
6000
9000
LR 5003 KDD
LR5003KDD

70
40
17
14
14
-
0.3
7700
5200
214
6000
9000
LR 5003 KDDU
LR5003KDDU

70
40
17
14
14
500
0.3
7700
5200
214
6000
9000
LR 5004 NPP
LR5004NPP

120
47
20
16
16
-
0.6
11500
7700
317
5500
8000
LR 5004 NPPU
LR5004NPPU

120
47
20
16
16
500
0.6
11500
7700
317
5500
8000
LR 5004 KDD
LR5004KDD

120
47
20
16
16
-
0.6
11500
7700
317
5500
8000
LR 5004 KDDU
LR5004KDDU

120
47
20
16
16
500
0.6
11500
7700
317
5500
8000
LR 5005 NPP
LR5005NPP

150
52
25
16
16
-
0.6
11600
8100
332
4700
7000
LR 5005 NPPU
LR5005NPPU

150
52
25
16
16
500
0.6
11600
8100
332
4700
7000
LR 5005 KDD
LR5005KDD

150
52
25
16
16
-
0.6
11600
8100
332
4700
7000
LR 5005 KDDU
LR5005KDDU

150
52
25
16
16
500
0.6
11600
8100
332
4700
7000
LR 5006 NPP
LR5006NPP

250
62
30
19
19
-
1
17200
11100
462
4000
6000
LR 5006 NPPU
LR5006NPPU

250
62
30
19
19
500
1
17200
11100
462
4000
6000
LR 5006 KDD
LR5006KDD

250
62
30
19
19
-
1
17200
11100
462
4000
6000
LR 5006 KDDU
LR5006KDDU

250
62
30
19
19
500
1
17200
11100
462
4000
6000
LR 5007 NPP
LR5007NPP

300
68
35
20
20
-
1
17600
13100
490
4000
5300
LR 5007 NPPU
LR5007NPPU

300
68
35
20
20
500
1
17600
13100
490
4000
5300
LR 5007 KDD
LR5007KDD

300
68
35
20
20
-
1
17600
13100
490
4000
5300
LR 5007 KDDU
LR5007KDDU

300
68
35
20
20
500
1
17600
13100
490
4000
5300
LR 5200 NPP
LR5200NPP

70
32
10
14
14
-
0.6
6800
4050
168
8000
11000
LR 5200 NPPU
LR5200NPPU

70
32
10
14
14
500
0.6
6800
4050
168
8000
11000
LR 5200 KDD
LR5200KDD
305700 C-2Z
70
32
10
14
14
-
0.6
6800
4050
168
8000
11000
LR 5200 KDDU
LR5200KDDU
305800 C-2Z
70
32
10
14
14
500
0.6
6800
4050
168
8000
11000
LR 5201 NPP
LR5201NPP

80
35
12
15.9
15.9
-
0.6
8600
5100
211
7500
10000
LR 5201 NPPU
LR5201NPPU

80
35
12
15.9
15.9
500
0.6
8600
5100
211
7500
10000
LR 5201 KDD
LR5201KDD
305702 C-2Z
80
35
12
15.9
15.9
-
0.6
8600
5100
211
7500
10000
LR 5201 KDDU
LR5201KDDU
305801 C-2Z
80
35
12
15.9
15.9
500
0.6
8600
5100
211
7500
10000
LR 5202 NPP
LR5202NPP

110
40
15
15.9
15.9
-
0.6
9800
6200
258
7000
10000
LR 5202 NPPU
LR5202NPPU

110
40
15
15.9
15.9
500
0.6
9800
6200
258
7000
10000
LR 5202 KDD
LR5202KDD
305702 C-2Z
110
40
15
15.9
15.9
-
0.6
9800
6200
258
7000
10000
LR 5202 KDDU
LR5202KDDU
305802 C-2Z
110
40
15
15.9
15.9
500
0.6
9800
6200
258
7000
10000
LR 5203 NPP
LR5203NPP

170
47
17
17.5
17.5
-
0.6
12600
8200
342
5500
7500
LR 5203 NPPU
LR5203NPPU

170
47
17
17.5
17.5
500
0.6
12600
8200
342
5500
7500
LR 5203 KDD
LR5203KDD
305703 C-2Z
170
47
17
17.5
17.5
-
0.6
12600
8200
342
5500
7500
LR 5203 KDDU
LR5203KDDU
305803 C-2Z
170
47
17
17.5
17.5
500
0.6
12600
8200
342
5500
7500
LR 5204 NPP
LR5204NPP

230
52
20
20.6
20.6
-
1
15800
10500
433
5000
7000
LR 5204 NPPU
LR5204NPPU

230
52
20
20.6
20.6
500
1
15800
10500
433
5000
7000
LR 5204 KDD
LR5204KDD
305704 C-2Z
230
52
20
20.6
20.6
-
1
15800
10500
433
5000
7000
LR 5204 KDDU
LR5204KDDU
305804 C-2Z
230
52
20
20.6
20.6
500
1
15800
10500
433
5000
7000
LR 5205 NPP
LR5205NPP

340
62
25
20.6
20.6
-
1
18500
13000
532
4500
6500
LR 5205 NPPU
LR5205NPPU

340
62
25
20.6
20.6
500
1
18500
13000
532
4500
6500
LR 5205 KDD
LR5205KDD
305705 C-2Z
340
62
25
20.6
20.6
-
1
18500
13000
532
4500
6500
LR 5205 KDDU
LR5205KDDU
305805 C-2Z
340
62
25
20.6
20.6
500
1
18500
13000
532
4500
6500
LR 5206 NPP
LR5206NPP

510
72
30
23.8
23.8
-
1
24600
21400
880
3500
5000
LR 5206 NPPU
LR5206NPPU

510
72
30
23.8
23.8
500
1
24600
21400
880
3500
5000
LR 5206 KDD
LR5206KDD
305706 C-2Z
510
72
30
23.8
23.8
-
1
24600
21400
880
3500
5000
LR 5206 KDDU
LR5206KDDU
305806 C-2Z
510
72
30
23.8
23.8
500
1
24600
21400
880
3500
5000
LR 5207 NPP
LR5207NPP

660
80
35
27
27
-
1.1
30500
22400
927
2800
3900
LR 5207 NPPU
LR5207NPPU

660
80
35
27
27
500
1.1
30500
22400
927
2800
3900
LR 5207 KDD
LR5207KDD
305707 C-2Z
660
80
35
27
27
-
1.1
30500
22400
927
2800
3900
LR 5207 KDDU
LR5207KDDU
305807 C-2Z
660
80
35
27
27
500
1.1
30500
22400
927
2800
3900
LR 5208 NPP
LR5208NPP

750
85
40
30.2
30.2
-
1.1
34500
25500
1060
2500
3500
LR 5208 NPPU
LR5208NPPU

750
85
40
30.2
30.2
500
1.1
34500
25500
1060
2500
3500
LR 5208 KDD
LR5208KDD
305708 C-2Z
750
85
40
30.2
30.2
-
1.1
34500
25500
1060
2500
3500
LR 5208 KDDU
LR5208KDDU
305808 C-2Z
750
85
40
30.2
30.2
500
1.1
34500
25500
1060
2500
3500
LR 5302 NPP
LR5302NPP

150
47
15
19
19
-
1
14600
9200
380
6500
10000
LR 5302 NPPU
LR5302NPPU

150
47
15
19
19
500
1
14600
9200
380
6500
10000
LR 5302 KDD
LR5302KDD
306702 C-2Z
150
47
15
19
19
-
1
14600
9200
380
6500
10000
LR 5302 KDDU
LR5302KDDU
306802 C-2Z
150
47
15
19
19
500
1
14600
9200
380
6500
10000
LR 5303 NPP
LR5303NPP

210
52
17
22.2
22.2
-
1
17200
11100
462
4700
6500
LR 5303 NPPU
LR5303NPPU

210
52
17
22.2
22.2
500
1
17200
11100
462
4700
6500
LR 5303 KDD
LR5303KDD
306703 C-2Z
210
52
17
22.2
22.2
-
1
17200
11100
462
4700
6500
LR 5303 KDDU
LR5303KDDU
306803 C-2Z
210
52
17
22.2
22.2
500
1
17200
11100
462
4700
6500
LR 5304 NPP
LR5304NPP

340
62
20
22.2
22.2
-
1.1
21100
14500
606
4500
6500
LR 5304 NPPU
LR5304NPPU

340
62
20
22.2
22.2
500
1.1
21100
14500
606
4500
6500
LR 5304 KDD
LR5304KDD
306704 C-2Z
340
62
20
22.2
22.2
-
1.1
21100
14500
606
4500
6500
LR 5304 KDDU
LR5304KDDU
306804 C-2Z
340
62
20
22.2
22.2
500
1.1
21100
14500
606
4500
6500
LR 5305 NPP
LR5305NPP

500
72
25
25.4
25.4
-
1.1
27500
19500
813
3900
5500
LR 5305 NPPU
LR5305NPPU

500
72
25
25.4
25.4
500
1.1
27500
19500
813
3900
5500
LR 5305 KDD
LR5305KDD
306705 C-2Z
500
72
25
25.4
25.4
-
1.1
27500
19500
813
3900
5500
LR 5305 KDDU
LR5305KDDU
306805 C-2Z
500
72
25
25.4
25.4
500
1.1
27500
19500
813
3900
5500
LR 5306 NPP
LR5306NPP

670
80
30
30.2
30.2
-
1.1
36500
26500
1100
3100
4300
LR 5306 NPPU
LR5306NPPU

670
80
30
30.2
30.2
500
1.1
36500
26500
1100
3100
4300
LR 5306 KDD
LR5306KDD
306706 C-2Z
670
80
30
30.2
30.2
-
1.1
36500
26500
1100
3100
4300
LR 5306 KDDU
LR5306KDDU
306806 C-2Z
670
80
30
30.2
30.2
500
1.1
36500
26500
1100
3100
4300
LR 5307 NPP
LR5307NPP

970
90
35
34.9
34.9
-
1.5
44500
33000
1370
2500
3600
LR 5307 NPPU
LR5307NPPU

970
90
35
34.9
34.9
500
1.5
44500
33000
1370
2500
3600
LR 5307 KDD
LR5307KDD
306707 C-2Z
970
90
35
34.9
34.9
-
1.5
44500
33000
1370
2500
3600
LR 5307 KDDU
LR5307KDDU
306807 C-2Z
970
90
35
34.9
34.9
500
1.5
44500
33000
1370
2500
3600
LR 5308 NPP
LR5308NPP

1200
100
40
36.5
36.5
-
1.5
56000
42000
1750
2300
3300
LR 5308 NPPU
LR5308NPPU

1200
100
40
36.5
36.5
500
1.5
56000
42000
1750
2300
3300
LR 5308 KDD
LR5308KDD
306708 C-2Z
1200
100
40
36.5
36.5
-
1.5
56000
42000
1750
2300
3300
LR 5308 KDDU
LR5308KDDU
306808 C-2Z
1200
100
40
36.5
36.5
500
1.5
56000
42000
1750
2300
3300

Support bushings, pivots, studs and bolts
VARDHMAN can supply various accessories, such as bushings, pivots, studs and bolts, which suit for the Rollers or Bearings edited into our catalogue.In general, these accessories are according as its mount method specified by users to determine their profiles and sizes. VARDHMAN have set up a seriation to these accessories and designated by B.. Following the letter B, the various numerals indicate that the accessories are applied to the different series of Rollers or Bearings and their internal diameter as well as mount method respectively.
vardhman adopt a lot of materials, e.g. carbon steel, stainless steel to manufacture these accessories, and use different method, for example blackening, zinc-plated and nickel-plated etc. to treat their surface.


Diabolo-rollers, Track rollers for tubular rail
The Diabolo rollers are special arranged in the meat hook that running on a long tubular rail in the Abattoirs. These rollers feature to accept high carrying loads and to have long service life. The rollers have different hardness in external profile surface and internal structure so that the rails are prevented from wear in operation. These rollers are filled with high-grade grease which can run in the range - 40°C to + 180°C with waterproof & anti-washing function.
Track Roller No.
Weight
Dimensions (mm)
YI-TONG
≈(g)
d
D
D1
B
L
L1
α
YTA100
130
10
35
24
34
36
10
26
YTA101
230
12
40
28
45
47
10
23.2
YTA102
273
12
40
28
47.5
52
10
26
YTA200
137
10
36
24
34
36
10
26

Axial angular contact ball bearings, for screw mounting • The complete units are consisted of a single-piece outer ring, a two-piece inner ring, balls, cage assemblies and seals.
• Bearings are double direction angular contact ball bearings with a 60° contact angle in an O arrangement.
• can support axial loads from both directions as well as radial loads.
• are preloaded after assembly by a precision locknut.
• are protected from contamination by lip seals or gap seals.
• are greased with a lithium complex soap base grease to SHELL Alvania RL3.
• can be relubricated.
• are suitable for operating temperatures from -30°C to +120°C (limited by the grease, sealing ring material and the plastic ball cages).
• are precision bearings e.g. for use with screw drives.
• outer ring is suitable for flange mounting.
• lip seals or gap seals on both sides.


Axial angular contact ball bearings, for screw mounting
*Suffix PE: increased tolerances.
Bearing No.
Dimensions (mm)
Load Ratings
Limiting Speed
YI-TONG
d
D
B
b
d1
d2
D1
I
J
r1 min
r min
t
Weight(KG)
Ca (KN)
Coa (KN)
Cua (KN)
nG rpm
ZKLF 1255.2RS
12
55
25
3
25
6.5
33.5
17
42
0.6
0.3
120
0.37
17
24.7
0.91
3800
ZKLF 1560.2RS
15
60
25
3
28
6.5
36
17
46
0.6
0.3
120
0.43
17.9
28
1.04
3500
ZKLF 1762.2RS
17
62
25
3
30
6.5
38
17
48
0.6
0.3
120
0.45
18.8
31
1.15
3300
ZKLF 2068.2RS
20
68
28
3
34.5
6.5
44
19
53
0.6
0.3
90
0.61
26
47
1.74
3000
ZKLF 2575.2RS
25
75
28
3
40.5
6.5
49
19
58
0.6
0.3
90
0.72
27.5
55
2.04
2600
ZKLF 3080.2RS
30
80
28
3
45.5
6.5
54
19
63
0.6
0.3
60
0.78
29
64
2.37
2200
ZKLF 3590.2RS
35
90
34
3
52
8.5
63
25
75
0.6
0.3
90
1.13
41
89
3.3
2000
ZKLF 40100.2RS
40
100
34
3
58
8.5
68
25
80
0.6
0.3
90
1.46
43
101
3.75
1800
ZKLF 50115.2RS
50
115
34
3
72
8.5
82
25
94
0.6
0.3
60
1.86
46.5
126
4.65
1500
ZKLF 1255.2Z
12
55
25
3
25
6.5
33.5
17
42
0.6
0.3
120
0.37
17
24.7
0.91
7600
ZKLF 1560.2Z
15
60
25
3
28
6.5
36
17
46
0.6
0.3
120
0.43
17.9
28
1.04
7000
ZKLF 1762.2Z
17
62
25
3
30
6.5
38
17
48
0.6
0.3
120
0.45
18.8
31
1.15
6600
ZKLF 2068.2Z
20
68
28
3
34.5
6.5
44
19
53
0.6
0.3
90
0.61
26
47
1.74
5400
ZKLF 2575.2Z
25
75
28
3
40.5
6.5
49
19
58
0.6
0.3
90
0.72
27.5
55
2.04
4700
ZKLF 3080.2Z
30
80
28
3
45.5
6.5
54
19
63
0.6
0.3
60
0.78
29
64
2.37
4300
ZKLF 3590.2Z
35
90
34
3
52
8.5
63
25
75
0.6
0.3
90
1.13
41
89
3.3
3800
ZKLF 40100.2Z
40
100
34
3
58
8.5
68
25
80
0.6
0.3
90
1.46
43
101
3.75
3300
ZKLF 50115.2Z
50
115
34
3
72
8.5
82
25
94
0.6
0.3
60
1.86
46.5
126
4.65
3000
ZKLF 1255.2RS PE
12
55
25
3
25
6.8
33.5
17
42
0.6
0.3
120
0.37
17
24.7
0.91
3800
ZKLF 1560.2RS PE
15
60
25
3
28
6.8
36
17
46
0.6
0.3
120
0.43
17.9
28
1.04
3500
ZKLF 1762.2RS PE
17
62
25
3
30
6.8
38
17
48
0.6
0.3
120
0.45
18.8
31
1.15
3300
ZKLF 2068.2RS PE
20
68
28
3
34.5
6.8
44
19
53
0.6
0.3
90
0.61
26
47
1.74
3000
ZKLF 2575.2RS PE
25
75
28
3
40.5
6.8
49
19
58
0.6
0.3
90
0.72
27.5
55
2.04
2600
ZKLF 3080.2RS PE
30
80
28
3
45.5
6.8
54
19
63
0.6
0.3
60
0.78
29
64
2.37
2200
ZKLF 3590.2RS PE
35
90
34
3
52
8.8
63
25
75
0.6
0.3
90
1.13
41
89
3.3
2000
ZKLF 40100.2RS PE
40
100
34
3
58
8.8
68
25
80
0.6
0.3
90
1.46
43
101
3.75
1800
ZKLF 50115.2RS PE
50
115
34
3
72
8.8
82
25
94
0.6
0.3
60
1.86
46.5
126
4.65
1500




Axial angular contact ball bearings • are complete units consisting of a single-piece outer ring, a two-piece inner ring, ball and cage assemblies and seals.
• are double direction angular contact ball bearings with a 60° contact angle in an O arrangement.
• can support axial loads from both directions as well as radial loads.
• are preloaded after assembly by a precision locknut.
• are protected from contamination by lip seals or gap seals.
• are greased with a lithium complex soap base grease to SHELL Alvania RL3.
• can be relubricated.
• are suitable for operating temperatures from -30°C to +120°C (limited by the grease, sealing ring material and the plastic ball cages).
• are precision bearings e.g. for use with screw drives.
• lip seals or gap seals on both sides.
Dimensions of axial angular contact ball bearings

Axial angular contact ball bearings
*Suffix PE: increased tolerances.
Bearing No.
Dimensions (mm)
Load Ratings
Limiting Speed
YI-TONG
d
D
B
d1
D1
r1 min
r min
Weight(KG)
Ca (KN)
Coa (KN)
Cua (KN)
nG rpm
ZKLN 0169.2Z
6
19
12
12
16.5
0.3
0.3
0.02
4.9
6.1
0.226
14000
ZKLN 0624.2RS
6
24
15
14
19.5
0.6
0.3
0.03
6.9
8.5
0.315
6800
ZKLN 0624.2RS PE
6
24
15
14
19.5
0.6
0.3
0.03
6.9
8.5
0.315
6800
ZKLN 0624.2Z
6
24
15
14
19.5
0.6
0.3
0.03
6.9
8.5
0.315
12000
ZKLN 0832.2RS
8
32
20
19
26.5
0.6
0.3
0.09
12.5
16.3
0.6
5100
ZKLN 0832.2Z
8
32
20
19
26.5
0.6
0.3
0.09
12.5
16.3
0.6
9500
ZKLN 1034.2RS
10
34
20
21
28.5
0.6
0.3
0.1
13.4
18.8
0.7
4600
ZKLN 1034.2RS PE
10
34
20
21
28.5
0.6
0.3
0.1
13.4
18.8
0.7
4600
ZKLN 1034.2Z
10
34
20
21
28.5
0.6
0.3
0.1
13.4
18.8
0.7
8600
ZKLN 1242.2RS
12
42
25
25
33.5
0.6
0.3
0.2
17
24.7
0.91
3800
ZKLN 1242.2RS PE
12
42
25
25
33.5
0.6
0.3
0.2
17
24.7
0.91
3800
ZKLN 1242.2Z
12
42
25
25
33.5
0.6
0.3
0.2
17
24.7
0.91
7600
ZKLN 1545.2RS
15
45
25
28
36
0.6
0.3
0.21
17.9
28
1.04
3500
ZKLN 1545.2RS PE
15
45
25
28
36
0.6
0.3
0.21
17.9
28
1.04
3500
ZKLN 1545.2Z
15
45
25
28
36
0.6
0.3
0.21
17.9
28
1.04
7000
ZKLN 1747.2RS
17
47
25
30
38
0.6
0.3
0.22
18.8
31
1.15
3300
ZKLN 1747.2RS PE
14
47
25
30
38
0.6
0.3
0.22
18.8
31
1.15
3300
ZKLN 1747.2Z
14
47
25
30
38
0.6
0.3
0.22
18.8
31
1.15
6600
ZKLN 2052.2RS
20
52
28
34.5
44
0.6
0.3
0.31
26
47
1.74
3000
ZKLN 2052.2RS PE
20
52
28
34.5
44
0.6
0.3
0.31
26
47
1.74
3000
ZKLN 2052.2Z
20
52
28
34.5
44
0.6
0.3
0.31
26
47
1.74
5400
ZKLN 2557.2RS
25
57
28
40.5
49
0.6
0.3
0.34
27.5
55
2.04
2600
ZKLN 2557.2RS PE
25
57
28
40.5
49
0.6
0.3
0.34
27.5
55
2.04
2600
ZKLN 2557.2Z
25
57
28
40.5
49
0.6
0.3
0.34
27.5
55
2.04
4700
ZKLN 3062.2RS
30
62
28
45.5
54
0.6
0.3
0.39
29
64
2.37
2200
ZKLN 3062.2RS PE
30
62
28
45.5
54
0.6
0.3
0.39
29
64
2.37
2200
ZKLN 3062.2Z
30
62
28
45.5
54
0.6
0.3
0.39
29
64
2.37
4300
ZKLN 3572.2RS
35
72
34
52
63
0.6
0.3
0.51
41
89
3.3
2000
ZKLN 3572.2Z
35
72
34
52
63
0.6
0.3
0.51
41
89
3.3
3800
ZKLN 4075.2RS
40
75
34
58
68
0.6
0.3
0.61
43
101
3.75
1800
ZKLN 4075.2Z
40
75
34
58
68
0.6
0.3
0.61
43
101
3.75
3300
ZKLN 5090.2RS
50
90
34
72
82
0.6
0.3
0.88
46.5
126
4.65
1500
ZKLN 5090.2RS PE
50
90
34
72
82
0.6
0.3
0.88
46.5
126
4.65
1500
ZKLN 5090.2Z
50
90
34
72
82
0.6
0.3
0.88
46.5
126
4.65
3000



VARDHMAN BEARINGS can supply numbers of type linear motion guide systems, they are widely used in the application that need to linear motion, such as industrial robot, precision assembly line, automatic equipments, office facilities, medical instruments, printing machines and textile machinery and so on.


LINEAR MOTION SYSTEM




YT... Series single edge linear rails

Rails No.
Weight
Dimensions (mm)
Mounting Holes(ø)
Length*
VARDHMAN
KG/M
W
H
T
C
D
a
(m)
YT1
0.27
11.10
4.75
3.18
0.79
1.57
90
3.96
1.5
YT2
0.51
15.88
6.35
4.75
0.79
2.39
90
5.16
2
YT3
1.03
22.23
8.71
6.35
1.57
2.77
90
7.14
2
YT4
1.64
26.97
11.10
7.92
2.36
3.18
90
8.75
2
YTS1
0.27
11.10
4.75
3.18
0.79
1.57
90
3.96
2
YTS2
0.51
15.88
6.35
4.75
0.79
2.39
90
5.16
3
YTS3
1.03
22.23
8.71
6.35
1.57
2.77
90
7.14
3
YTS4
1.64
26.97
11.10
7.92
2.36
3.18
90
8.75
3
* Recommended economical length，specified length is available.

YT Series single edge linear rails are made of high-quality carbon steels. They are easy to mount with flexible application. VARDHMAN can supply two kinds of rails: -Economical type (type YTS) -Case-hardening with ground (type YT) Custom drilled holes are available. Linear Motion System that YT series single edge linear rails and YTGW series Track Rollers are applied features good performance: 1. Movement speed (Max.): 8mm/sec 2. Accelerations: 5g 3. High precision of movement 4. Suitable for high temperature environment 5. No more processing for mounting surfaces of rails 6. Low running noise level 7. Easy to lengthen the rails 8. Clean-free for systems
Designation: YTS-XXXX: Made of carbon steel, contact surfaces oiled, single edge linear rails. YT-XXXX : Made of carbon steel, contact surfaces case-hardening, ground and oiled, single edge linear rails. XXXX : Length of single edge linear rails (mm).


IDS linear guide rails


VARDHMAN IDS (Inlay Dual Shafts Guide System) consists of sliding carriage and rails.The rails include an aluminum body and two pieces high precision﹑hardened linear shafts that are inlaid into the aluminum body. The sliding carriage is mounted with three pieces or more high quality LFR series track rollers, two rollers are fixed on the block, and others are all with eccentric functions.IDS have a low coefficient of friction and good performance in high speed and high accelerations.The guide rails and the carriage block are all drilled with mounting holes, easy for mounting.IDS are easy to get a proper preload by adjusting the rollers with eccentric functions.IDS have a long service life. Track rollers are available on stock for customers’ replacement.Custom drilled services on the rails are also available from VARDHMAN.
Designation: IDS-38-XXXX-3 IDS: Code of Inlay Dual Shafts Rails XX: Width of rail, e.g. 38 means the width 38 mm XXXX: Length of rail (mm) X: Number of rollers mounted on the carriage. 4 means 4 pieces (standard type is mounted 3 pieces of roller, not specified.)




ODS linear guide rails

VARDHMAN ODS (Outlay Dual Shafts Guide System) consists of sliding carriage and rails.The rails include an aluminum body and 2 pieces high precision﹑hardened linear shafts that are inlaid into the aluminum body.The sliding carriage is mounted with four pieces high quality LFR series track rollers, two pieces of them have eccentric functions, and very easy for adjusting the clearance of this system. ODS have a low coefficient of friction and well performance in high speed and high accelerations.The guide rails and the carriage block are all drilled with mounting holes, easy for mounting.The preload of ODS could be adjusted freely to meet various application requirements. ODS have a long service life. Track rollers are available on stock for customers’ replacement.Custom drilled services on the rails are also available from VARDHMAN.
Designation: ODS-25-XXXX ODS Code of Outlay Dual Shafts Rails XX: Width of rail, e.g. 25 means the width 25 mm XXXX: Length of rail (mm)




VARDHMAN linear guideway – Compact rails.

VARDHMAN compact rail linear guide system consists of a separated sliding carriage and a guide rail.The guide rail is made of high quality carbon steel.The sliding carriage is mounted with three pieces or more high quality LV series track rollers, two rollers are fixed on the block, and others are all with eccentric functions.The sliding carriage could be dismounted from the rail very easily, which makes this guide system extremely convenient in mounting and adjusting.The guide rails and the carriage block are all drilled with mounting holes, easy for mounting and less space required.The preload of this Compact rail system could be adjusted freely to meet various application requirements.This Compact rail system has a long service life. Track rollers are available on stock for customers’ replacement.Custom drilled services on the rails are also available from VARDHMAN.
Designation: LTV-28-XXXX-X LTV Code of Compact linear rails XX: Width of the rail, e.g. 28 means the width 28mm. XXXX: Length of the rail (mm). X: Number of the rollers mounted on the carriage, 4 means 4 pieces (standard type is mounted with 3 pieces of roller, not specified.)

OTHER BEARINGS








VARDHMAN BEARINGS also can supply the various types of Non-Ground Rollers and Bearings according to the customers' requirements, in which made from different materials, such as plastic, brass, carburizing steel, and it can be used for the condition of anti-corrosion and anti-abrasion as well as shock loads.
Swash Bearings are made of high quality carburizing alloy steel (e.g. 16CrMn). They are specially applied to power tools. It is a key part in rotary hammer and plays a role in converting rotary motion to reciprocating linear motion.They are normally arranged in power tools made by Bosch Group.
Track roller series YTM… are made of high quality chromium steel. These track rollers feature a thick-walled outer ring and to enable rollers to accept higher radial forces as well as shock loads. They are extensively applied to forklift mast and lifting machinery's guide track etc..
Drawn Cup Bearings are also named Press ball bearings. They are made of stainless steel (e.g. SUS 303), carbon steel and engineering plastic respectively according to the different applications. To meet the different applications, their profile surfaces can be with Zinc-plated or bluing treatment. These bearings are widely used in doors & windows, conveyor system where the precision and loads are not so high applications.
VARDHMAN BEARINGS welcome any specified order as per customers' specification.
Plastic Bearings Feature reducing vibration and noise to applying facilities. They are widely used in doors & windows, housings & stands, caster & pulleys and so on. The material of plastic cover use engineering plastic, such as Nylon; PA6; PA 66; PA 66 with 30% GF; POM and PU etc.

Characteristics of VARDHMAN track rollers
Adopting carefully chosen materials and components :VARDHMAN track rollers are made of the high-quality bearing steel (SAE52100) or stainless steel (440C) from the Shanghai No.5 Steel Company, so they possess of a favorable mechanical function after heat treatment. We select the precision steel ball of TSUBAKI from Japan to better the function of products. Meanwhile, the cage made of the engineering plastic from DUPONT or high-quality steel sheet (SPCC-SD) makes the bearings run in the reliable condition. The standard rollers are filled with the high-grade and multi-purpose grease from the SHELL Company and mantled by the Buna-N rubber seal or metal shield made of the high-quality steel sheet (SPCC-SD), so that to ensure that products can be lubricated well with the excellent function of seal and dustproof. It is available to fill with the specified grease and to mantle the high-quality rubber seal for custom products in order to meet different applications, such as KLUBER Grease from Germany, heat-resisting fluorin rubber seal and so on.
Optimal design :Various series of all VARDHMAN Track Rollers have a section that suit for running on the track. For example, the Gothic arch groove profile suit to cylindrical track. So the force distribution can be shared out equally and the load carrying capacity is increased in the rollers.
For the system or equipment that the track needs a low wear requirement, VARDHMAN adopted a special design of two different hardness grades, i.e. the hardness of internal structure is the standard one to ensure the roller’s service life to be longer, while the hardness of external is lower than the track’s. So the track abrasion is reduced, which makes the maintenance convenient and its cost lower.
Advanced technique :VARDHMAN special equipments of machine and facilities as well as inspection methods make the special profile design of bearing precisely on the products. For example, the accurate “V” and “W” profiles can make roller well contact with the track to improve the stability and prolong the service life of the system. Thus, the actual loads of roller can be met to the designed requirements.
track rollers List