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Bore diameter Exactly
≤ d ≤ d =
Outer diameter Exactly
≤ D ≤ D =
Width Exactly
≤ B ≤ B =
(Dimensions in mm)

Inner rings

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Inner rings are made from hardened rolling bearing steel and have precision machined or ground raceways.

They are used where:

• the shaft cannot be used as a raceway for needle roller and cage assemblies, drawn cup needle roller bearings with open ends, drawn cup needle roller bearings with closed end and needle roller bearings
• needle roller bearings must be combined with wider inner rings in order to allow larger axial displacements of the shaft in relation to the housing
• optimum running surfaces are required for seal lips.

 

Download the current general catalogue EN

 

Table legend:

○ with lubrication hole

• with lubrication hole without counterbore

Dimensions Designation Mass
d F D r min g
mm
5 8 12 0.3 IR5x8x12 2.8
5 8 16 0.3 IR5x8x16 3.7
6 9 12 0.3 IR6x9x12 3.2
6 9 16 0.3 IR6x9x16 4.3
6 10 10 0.3 IR6x10x10 3.7
6 10 12 0.3 • IR6x10x12 4.6
7 10 11 0.3 IR7x10x10.5 3.1
7 10 12 0.3 IR7Xx10x12 3.6
7 10 16 0.3 IR7x10x16 4.9
8 12 10 0.3 IR8x12x10 4.8
8 12 11 0.3 IR/LR8x12x10.5 5.0
8 12 12 0.3 IR8x12x12 5.7
8 12 13 0.3 IR8x12x12.5 5.9
9 12 12 0.3 IR9x12x12 4.5
9 12 16 0.3 IR9x12x16 6.1
10 13 13 0.3 IR/LR10x13x12.5 5.2
10 14 12 0.3 o IR10x14x12 7.3
10 14 13 0.3 IR10x14x13 7.4
10 14 14 0.3 • IR10x14x14 8.0
10 14 16 0.3 IR10x14x16 9.2
10 14 20 0.3 IR10x14x20 11.6
12 15 12 0.3 IR12x15x12 5.8
12 15 13 0.3 IR12x15x12.5 6.1
12 15 16 0.3 IR12x15x16 8.0
12 15 17 0.3 IR/LR12x15x16.5 8.1
12 15 23 0.3 IR/LR12x15x22.5 11.0
12 16 12 0.3 o IR12x16x12 7.9
12 16 13 0.3 IR12x16x13 8.7
12 16 14 0.3 • IR12x16x14 9.5
12 16 16 0.3 IR12x16x16 11.0
12 16 20 0.3 IR12x16x20 13.5
14 17 17 0.3 IR14x17x17 10.0
15 18 13 0.3 IR15x18x12.5 7.2
15 18 16 0.3 IR15x18x16 9.6
15 18 17 0.3 IR15x18x16.5 9.9
15 19 16 0.3 IR15x19x16 12.8
15 19 20 0.3 IR15x15x20 16.4
15 20 12 0.3 o IR15x20x12 12.1
15 20 13 0.3 IR15x20x13 13.5
15 20 14 0.3 • IR15x20x14 14.7
15 20 23 0.3 IR15x20x23 24.4
17 20 16 0.3 IR17x20x16 10.7
17 20 17 0.3 IR17x20x16.5 11.1
17 20 20 0.3 IR17x20x20 13.5
17 20 21 0.3 IR17x20x20.5 13.8
17 20 31 0.3 IR17x20x30.5 20.6
17 21 16 0.3 IR17x21x16 14.3
17 21 20 0.3 IR17x21x20 18.0
17 22 13 0.3 IR17x22x13 14.9
17 22 14 0.3 • IR17x22x14 16.4
17 22 16 0.3 IR17x22x16 18.7
17 22 23 0.3 IR17x22x23 27.1
17 24 20 0.3 IR17x24x20 33.6
20 24 16 0.3 IR20x24x16 16.5
20 24 20 0.3 IR20x24x20 21.3
20 25 13 0.3 IR20x25x12.5 20.0
20 25 17 0.3 IR20x25x17 22.4
20 25 18 0.3 IR20x25x18 24.3
20 25 20 0.3 IR20x25x20 27.5
20 25 21 0.3 IR20x25x20.5 28.2
22 26 16 0.3 IR22x26x16 17.5
22 26 20 0.3 IR22x26x20 23.2
22 28 17 0.3 IR22x28x17 29.8
22 28 20 0.3 IR22x28x20 35.0
22 28 21 0.3 IR22x28x20.5 36.0
25 29 20 0.3 IR25x29x20 25.5
25 29 30 0.3 IR25x29x30 39.3
25 30 13 0.3 IR25x30x12.5 20.0
25 30 16 0.3 IR25x30x15.5 23.2
25 30 17 0.3 IR25x30x16.5 26.7
25 30 17 0.3 • IR25x30x17 27.5
25 30 18 0.3 IR25x30x18 29.8
25 30 20 0.3 IR25x30x20 32.6
25 30 21 0.3 IR25x30x20.5 33.5
25 30 27 0.3 IR25x30x26.5 43.3
25 30 30 0.3 IR25x30x30 50.1
25 30 32 0.3 IR25x30x32 53.0
25 30 39 0.3 IR25x30x38.5 63.8
30 35 13 0.3 IR30x35x12.5 23.3
30 35 13 0.3 IR30x35x13 25.0
30 35 16 0.3 IR30x35x16 30.8
30 35 17 0.3 IR30x35x17 32.3
30 35 18 0.3 • IR30x35x18 35.3
30 35 20 0.3 IR30x35x20 40.0
30 35 21 0.3 IR30x35x20.5 40.7
30 35 26 0.3 IR30x35x26 50.3
30 35 30 0.3 IR30x35x30 58.9
35 40 13 0.3 IR35x40x12.5 27.2
35 40 17 0.3 IR35x40x16.5 37.4
35 40 17 0.3 IR35x40x17 38.4
35 40 20 0.3 IR35x40x20 44.4
35 40 21 0.3 IR35x40x20.5 46.1
35 40 30 0.3 IR35x40x30 67.9
40 45 17 0.3 IR40x45x16.5 41.4
40 45 17 0.3 IR40x45x17 42.5
40 45 20 0.3 IR40x45x20 50.5
40 45 21 0.3 IR40x45x20.5 52.5
40 45 30 0.3 IR40x45x30 77.1
45 50 21 0.3 IR45x50x20 57.0
45 50 26 0.3 IR45x50x25.5 75.1
45 50 35 0.3 IR45x50x35 101.0