Page 244 - needle bearings

Cam followers stud type truck rollers
NTN

Metric series
C B3

Type KR
Пa
Type KRʝʝLL
Type KRV ПD ПF Пn Пd1 Пe Пn G
Rʹ500 G1
Type KRVʝʝLL

C1
B2
B1
Type KR
(With cage)

D 10ʙ52mm

Boundary dimensions
mm
D C d1 F B1 B2 G G1 C1 n B3 a e h
0
ʵ0.050
7 3 0 4.0 17 9 M 3ʷ0.5 5 0.5 ʕ ʕ ʕ 7 2.5 3)
10
7 3 ʵ0.010 4.0 17 9 M 3ʷ0.5 5 0.5 ʕ ʕ ʕ 7 2.5 3)
8 4 0 4.8 20 11 M 4ʷ0.7 6 0.5 ʕ ʕ ʕ 8.5 2.5 3)
12 ʵ0.012
8 4 4.8 20 11 M 4ʷ0.7 6 0.5 ʕ ʕ ʕ 8.5 2.5 3)
9 5 0 5.75 23 13 M 5ʷ0.8 7.5 0.5 ʕ ʕ ʕ 9.5 3 3)
13 ʵ0.012
9 5 5.75 23 13 M 5ʷ0.8 7.5 0.5 ʕ ʕ ʕ 9.5 3 3)
11 6 0 8 28 16 M 6ʷ1 8 0.6 4 2) ʕ ʕ 12 3
16 ʵ0.012
11 6 8 28 16 M 6ʷ1 8 0.6 4 2) ʕ ʕ 12 3
11 8 0 10 32 20 M 8ʷ1.25 10 0.6 4 2) ʕ ʕ 14 4
19 ʵ0.015
11 8 10 32 20 M 8ʷ1.25 10 0.6 4 2) ʕ ʕ 14 4
12 10 0 12 36 23 M10ʷ1.25 12 0.6 4 ʕ ʕ 17 4
22 ʵ0.015
12 10 12 36 23 M10ʷ1.25 12 0.6 4 ʕ ʕ 17 4
12 10 0 12 36 23 M10ʷ1.25 12 0.6 4 ʕ ʕ 17 4
26 ʵ0.015
12 10 12 36 23 M10ʷ1.25 12 0.6 4 ʕ ʕ 17 4
14 12 0 15 40 25 M12ʷ1.5 13 0.6 6 6 3 23 6
30 ʵ0.018
14 12 15 40 25 M12ʷ1.5 13 0.6 6 6 3 23 6
14 12 0 15 40 25 M12ʷ1.5 13 0.6 6 6 3 23 6
32 ʵ0.018
14 12 15 40 25 M12ʷ1.5 13 0.6 6 6 3 23 6
18 16 0 18 52 32.5 M16ʷ1.5 17 0.8 6 8 3 27 6
35 ʵ0.018
18 16 18 52 32.5 M16ʷ1.5 17 0.8 6 8 3 27 6
20 18 0 22 58 36.5 M18ʷ1.5 19 0.8 6 8 3 32 6
40 ʵ0.018
20 18 22 58 36.5 M18ʷ1.5 19 0.8 6 8 3 32 6
24 20 0 25 66 40.5 M20ʷ1.5 21 0.8 8 9 4 37 8
47 ʵ0.021
24 20 25 66 40.5 M20ʷ1.5 21 0.8 8 9 4 37 8
24 20 0 25 66 40.5 M20ʷ1.5 21 0.8 8 9 4 37 8
52 ʵ0.021
24 20 25 66 40.5 M20ʷ1.5 21 0.8 8 9 4 37 8

Note 1) For bearing with cylindrical outer surface, the nominal number is followed by "X" code. In this case, the cylindrical bearing is manufactured with the tolerance for outer ring
outer diameter D which conforms to JIS Class-0. Ex. KR22XLL
2) Grease replenishing hole is provided at front side only (on left side-face in the above sketch). However, in the case with "hexagon hole" no grease replenishing hole is provided.
B-182