WWW.VARDHMANBEARINGS.COM
WWW.ARIHANTENGINEERS.COM
B-300
Bottom roller bearings for textile machinery NTN
These are needle roller bearings that support the
bottom rollers (fluted rollers) on fine spinning machines,
roving frames or drawing frames. Type FRIS is applied to
a fine spinning machine and a roving frame, and Type FR
applied to a drawing frame.
Types and construction
Bottom roller bearing FRIS is used to support the
bottom rollers of a fine spinning machine and a roving
frame. The outer ring outer profile of this bearing type is
spherical, which can allow, to some extent, mounting
error in the bottom rollers. On the other hand, the inner
ring is provided with a rib at its both ends and a clearance
between the outer ring and each inner ring rib is
minimized. Furthermore, the rib outer surface is knurled
to prevent invasion of cotton pieces into the bearing.
These bottom roller bearings are classified into
internationally interchangeable A-series bearings with
bearing fixing saddle (to fix a bearing to a support stand)
and B-series bearings adaptable to the dimensions of JIS
Fluted Rollers.
A-series bearings are further classified into one
bearing type (suffix SA) wherein inner ring and outer ring
are separable from one another according to saddle type
and another bearing type (suffix SB) wherein inner ring
and outer ring are non-separable. Of course, these
bearings can also be supplied without saddle.
On the other hand, B-series bearings are further
classified into bearing type with grease nipple (suffix N),
bearing type with knock pin on its outer ring (suffix P) and
bearing type with knock hole on its outer ring (suffix W)
(latter two types-classified by the fixing method applied).
These bearings can be supplied with saddle thereon on
request, similarly to A-series.
Type FR is used to support the rollers of a drawing
frame. This bearing type is composed of two drawn cup
type needle roller bearings which are configured in a
housing. These have no inner ring and use a shaft as the
direct raceway surface. Synthetic rubber seal is fitted in
the both ends of the housing. This bearing type is fixed to
a support stand with knock pins press-fitted in the
housing. The knock pin is provided with an grease hole
to enable grease replenishing.
Bottom Roller Bearings for Textile Machinery
Composition of bearing number
The bearing number comprises type code, dimension
code [diameter (d or Fw)] and a suffix.
Bearing fits
Table 1 shows bearing fits on/in shaft and housing.
FRIS 19 SB
Type code
Dimension code
Suffix
Fig.5
Bearing type
Shaft
FRIS
FR
g5 (g6)
h5 (h6)
j5 (j6) H10
H10
Screwed joint
Housing (stand)
Spline joint
Fig. 4 Type FR
Fig.3 Type FRIS
Fig. 1 Type FRIS‥SA Fig. 2 Type FRIS‥SB
Table 1 Bearing fits
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 300B-301
Bottom roller bearings for textile machinery NTN
Precautions for mounting
(1) For the shaft shoulder dimensions of the Type FRIS,
refer to the dimensions d1 and G in the relevant
dimension table. To be able to prevent entanglement
with fly and avoid adverse effect onto spinning quality,
it is necessary to promptly remove entangling fly
without stopping the machine. In this context, the
conditions that must be satisfied to allow the bearing
to fully develop its functions and maintain spinning
quality by provide sufficiently deep and wide shaft
shoulder.
(2) To axially position the bottom roller connected to the
machine, use a thrust bearing on the gear end side so
that axial movement of the bottom roller is positively
prevented.
(3) When rinsing the bottom roller with cleaning liquid
such as light oil, be careful not to allow the cleaning
liquid to enter the bearing.
(4) When installing the bearing to a stand, position the
outer ring to the middle of the inner ring width.
(5) Carefully install the bottom roller so that its runout is
not greater than 0.05 mm.
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 301B-302
Boundary dimensions Basic load ratings
dynamic static dynamic static
mm N kgf
d D B C Ers min
1) L K
Cr Cor Cr Cor
Note 1) Allowable minimum chamfer dimension r.
Type FRIS Series A
(For fine spinning machine/
roving frame)
d 16.5〜25mm
Type FRIS‥SA
(Separable)
Type FRIS Type FRIS‥SB
(Non-separable)
16.5 28 19 22 23.5 0.3 22.2 7.7 10 200 14 600 1 040 1 480
19
32 20 23 27 0.3 22.2 7.7 11 800 18 500 1 200 1 880
36 22 25 29 0.3 22.2 9.8 12 700 17 600 1 300 1 800
22 42 25 29 35 0.3 26.4 10.2 19 500 25 300 1 980 2 580
25 45 25 29 37 0.3 26.4 10.2 21 300 29 100 2 170 2 970
0
–0.020
0
–0.025
0
–0.025
0
–0.025
0
−0.010
0
−0.050
0
−0.120
Bottom roller bearings NTN
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 302B-303
Bearing numbers Abutment dimensions Mass
bearing bearing with saddle mm kg
bearing with saddle
Type SA Type SB L1 d1 G H (approx.)
FRIS16.5 FRIS16.5SA FRIS16.5SB 22 21 13 24〜26 0.059
FRIS19 FRIS19SA FRIS19SB 22 24 15 27〜29 0.081
FRIS19-5 FRIS19-5SA FRIS19-5SB 22 26 15 30〜32 0.120
FRIS22-2 FRIS22-2SA − 26 30 15 35〜37 0.208
FRIS25 FRIS25SA − 26 33 15 37〜39 0.226
Bottom roller bearings NTN
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 303B-304
Boundary dimensions Basic load ratings Bearing numbers Mass
dynamic static dynamic static (approx.)
mm N kgf kg
dD B C Jrs min1) K Type
Cr Cor Cr Cor Type FRIS Type FRIS‥NP FRIS‥NP
Note 1) Allowable minimum chamfer dimension r.
2) Example of bearing with grease nipple: Ex. FRIS 18N
Bearing with knock pin only: Ex. FRIS 15.87P
Type FRIS Series B
(For fine spinning machine/
roving frame)
d 15〜25mm
Type FRIS Type FRIS‥NP
(With grease nipple/knock pin) 2）
15 28 24 22 22 0.3 7.7 10 200 14 600 1 040 1 480 FRIS15
— 0.070
15.875 30 25.4 22 22 0.3 7.1 10 200 14 600 1 040 1 480 FRIS15.87 FRIS15.87NP 0.082
16
28 26 22 22 0.3 7.7 10 200 14 600 1 040 1 480 FRIS16 FRIS16NP 0.083
30 26 22 22 0.3 7.1 10 200 14 600 1 040 1 480 FRIS16-2 FRIS16-2NP 0.098
18
31.750 24 23 24 0.3 7.7 11 800 18 500 1 200 1 880 FRIS18 FRIS18NP 0.083
32 26 23 24 0.3 7.7 11 800 18 500 1 200 1 880 FRIS18-2 FRIS18-2NP 0.088
19.050
31.750 23.81 23 24 0.3 7.7 11 800 18 500 1 200 1 880 FRIS19.05
— 0.078
34 25.4 23 26 0.3 7.7 12 700 17 600 1 300 1 800 FRIS19.05-1 FRIS19.05-1NP 0.098
34 24 23 26 0.3 7.7 12 700 17 600 1 300 1 800 FRIS20-2 FRIS20-2NP 0.089
20 34 26 23 26 0.3 7.7 12 700 17 600 1 300 1 800
— FRIS20-4NP 0.097
36 26 23 26 0.3 7.1 12 700 17 600 1 300 1 800
— FRIS20-7NP 0.125
22 40 26 24 30 0.6 7.1 16 200 22 300 1 650 2 280 FRIS22-1 FRIS22-1NP 0.154
22.225 40 25.4 24 30 0.6 7.1 16 200 22 300 1 650 2 280 FRIS22.22 FRIS22.22NP 0.145
25
42 26 24 32 0.6 7.1 16 000 22 500 1 640 2 290 FRIS25-1 FRIS25-1NP 0.154
44 26 24 34 0.6 7.1 17 200 25 100 1 750 2 560 FRIS25-2 FRIS25-2NP 0.174
0
−0.020
0
−0.020
0
−0.010
0
−0.050
0
−0.120
0
−0.020
0
−0.025
0
−0.025
0
−0.025
0
−0.025
0
−0.025
0
−0.025
Bottom roller bearings NTN
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 304B-305
Bottom roller bearings NTN
Type FR
Boundary dimensions Basic load ratings Bearing Mass
dynamic static dynamic static numbers
mm N kgf kg
Fw D C E G H KD1
Cr Cor Cr Cor (approx.)
26.5 46 24 31 5 5 26 10 200 16 600 1 040 1 690 FR17.46P 0.066
17.462
26.5 47.6 24.6 42.86 4.76 4.76 26 14 400 25 900 1 470 2 640 FR17.46-1P 0.075
26.5 52.38 24.6 42.86 4.76 4.76 26 14 400 25 900 1 470 2 640 FR17.46-2P 0.082
26.988 41.28 24 31 5 5 26.5 10 200 16 600 1 040 1 690 FR17.46-3P 0.068
19.050 31.750 52.38 28 42.86 4.76 4.76 31.2 16 700 25 800 1 700 2 630 FR19.05P 0.134
22 34 46 28 43 4.76 4.76 33.5 23 400 44 000 2 380 4 500 FR22P 0.150
FW 17.462〜22mm
Type FR
(Drawing frame)
0
−0.050
0
−0.20
+0.053
+0.010
+0.053
+0.020
+0.053
+0.020
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 305B-306
Tensioner pulleys for textile machinery NTN
These pulleys are used to guide and tension the tapes
and belts driving the spindles of a fine spinning machine,
a roving frame, a false twister, etc.
A pulley drawn precisely from steel plate by precision
deep drawing is press-fitted in the outer ring of shaft
bearing in in place of inner ring.
Types and construction
Single-row or double-row ball bearing is built in this
pulley, which is internally prefilled with lithium soap base
grease. Grease is replenished through a grease hole
which is internally provided in the stud. Two different
mounting methods are available as follows for these
pulleys; one method is to bolt a pulley to the roller carrier
of machine with holder bolt using a special-purposed
holder (Type code: JF‥S) and another method is to bolt
directly a pulley to machine frame using the bolting hole
drilled in the stud and a corresponding hexagon head
bolt. A knock pin press-fitted in the stud end face is to
lock the bolt after tightened.
When a pulley is directly bolted to machine frame,
provide the hexagon head bolt center with a grease
through-hole for grease replenishing and screw a grease
nipple in its end face.
In mounting a double-row ball bearing type tension
pulley, insert the stud directly into machine frame and
tighten it with nut, without using the special-purposed
holder. Replenish grease using the box nut.
Tensioner Pulleys for Textile Machinery
Composition of pulley number
The pulley number of a given NTN tension pulley
consists of a type code (JPU‥S), dimension code [pulley
outside diameter (D)] and a suffix. A pulley having a
special holder is marked with the holder number of that
holder added to the suffix.
Fig. 1
Single-row bearing type
ension pulley
Fig. 2
Tension pulley
with holder
Box nut
Fig. 3
Double-row bearing type
tension pulley
JPU 90 S＋JF4S
Type code
Dimension code
Suffix
Holder number
Fig. 4
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 306B-307
Section x-x
Example 1 Example 2
Example 3
Boundary dimensions Bearing Sample Mass
numbers number
mm kg
DB B1 H d1 ab S L B2
(approx.)
60 25 − 3.5 −−− − − − JPU60S 1 0.140
25 − 3.5 −−− − − − JPU70S 1 0.160
25 − 3.5 − 48 39 10.2 − − JPU70S＋JF1S 2 0.235
70 30 2 − 21 −− − 67 〜71 5〜9 JPU70-2S 3 0.245
32 − − −−− − − − JPU70-1S 1 0.175
32 −−− 48 46 10.2 − − JPU70-1S＋JF2S 2 0.250
25 − 3.5 −−− − − − JPU90S 1 0.215
25 − 3.5 − 58 39 10.2 − − JPU90S＋JF3S 2 0.300
90
32 − − −−− − − − JPU90-1S 1 0.230
32 −−− 58 46 10.2 − − JPU90-1S＋JF4S 2 0.320
32 3.5 − 21 −− − 70.5〜74.5 5〜9 JPU90-9S 3 0.325
45 3.5 − 21 −− − 83.5〜87.5 5〜9 JPU90-10S 3 0.380
100
32 3.5 − 21 −− − 70.5〜74.5 5〜9 JPU100-14S 3 0.290
40 3.5 − 21 −− − 78.5〜82.5 5〜9 JPU100-12S 3 0.390
D 60〜100mm
0
−0.3
Tensioner pulleys NTN
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 307B-308
*ワンウェイほか/B294-B308_*ワンウェイほか/B294-B308 11/05/25 13:48 ページ 308
http://www.ntn.co.jp/english/products/pdf/needle/pdf/Needle_en_b300-308.pdf
No comments:
Post a Comment