1. The document provides specifications for various NSK needle bearings, including dimensions ranges and part numbers. 2. Needle bearings are available in internal diameters ranging from 4mm to 390mm, under various product codes like B248-B251, B252-B253, etc. 3. Additional details are provided on specifications for universal joints, tolerances, materials, and other needle bearing types like RNA, RLM, FNTA, FCR, and their applicable dimensions ranges.

2. NSK Needle Bearing CAT.No. 1419 1
( 1 )
NSK
& 5~100mm ................ B248~B251
12~ 30mm .................B252~B253
4~55mm ...................B254~B259
8~55mm ...................B254~B259
9~390mm ..................B260~B269
10~100mm ........................B270~B271
16~ 90mm .........................B272~B273
5~ 50mm ...........................B274~B275

3. &
( u n i v e r s a l
joint)
2 3
WJC
FBN FBNP
FWJ
FWJC
MFJL
FWJ
MFJT
MFJLT
RNA 48
RNA 49
RNA 59
RNA 69
FNTA
FCR
FCJ
FTRA FTRB FTRC FTRD FTRE
TRA TRB TRC TRD TRE
FB
CR
ZY
RC FC RCB FCB
CRS
NSA
YCR YCRS
FCRS FYCR FYCRS
FYCJSFYCJFCJS
NTA
HJ
WJ
FJ FJH
MJ MJH
MFJ MFJH
MF MFH
M MH
FJT FJTT
FJLT FJLTT
FJL
F FH
J JH
RLM
RNAF RNA TT
FIR
FJR
IR
YH
Y
JP
B BH
A F P
T C M
( B372 )
1

4. 2 ( ) 3 ISO
1
2 (
)
3
ISO
0.002mm
(
)

5. 8. 2 (A60~A63 )
(RNA RLM ) 4
4
( )
(
3)
8. 2 (A60~A63 )
&
& 5 &
&
&
5 &

6. (1)
................................. 9.2(A84 )
9.4(A85 )
6
& 7
7 &
&
FJ FJH MFJ MFJH F FH MF MFH
h6 N7( )
f6 R7
6 mm N 7
0.013~0.025mm
....................................... 9.14(A91 )
6

7. 8
9
8 9
10
10
( & )
1. &
2.
11(C22 )

8. 0.001 (3.4')
( )
HRC40
12
10~ 110
A37
& 11
11 &
A
B
12

9. FWF FWJ
5~22 mm
( ) 120 100
&

11. FWF FWJ
25 100 mm
&

13. 12 30 mm
&
( )

14. 9 19mm

15. FJ MFJ ( )
F MF ( )
4 16 mm
( )
( ) 120 100

16. ( )
( ) ( )

17. FJ MFJ ( )
F MF ( )
17 28 mm
( )

18. ( )
( ) ( )

19. FJ MFJ ( )
F MF ( )
30 55 mm
( )

20. ( ) ( )
( )

21. RLM LM
RNA NA
9 22 mm
( )
NSK

22. ( ) ( ) ( )
( )

23. RLM LM
RNA NA
25 35 mm
( )
NSK

24. ( ) ( ) ( )
( )

25. RLM LM
RNA NA
37 58 mm
( )
NSK

26. ( ) ( ) ( )
( )

27. RNA NA
63 120 mm
( )
NSK

28. ( ) ( ) ( )
( )

29. RNA NA
125 390 mm
( )
NSK

30. ( ) ( ) ( )
( )

31. FNTA ( & )
C12 E11 JIS B 0401( )
FTRA (s=1.0)
FTRB (s=1.5)
FTRC (s=2.0)
FTRD (s=2.5)
FTRE (s=3.0)
10~100mm

32. ( ) ( )
( )

33. FCR
FCRS
FCJ
FCJS
(1)
(2) FCRB
( )
16~90mm

34. (3) FCRE
(4)
(5) ( )

35. FYCR
FYCRS
FYCJ
FYCJS
( )
5~50mm

36. ( ) ( )