Bearing tolerances and clearances
- Tolerances: Normal, P6, P5
- Internal clearance: Single row track rollers, Double row track rollers
integral studded gothic arch groove profiled track rollers, double row angular contact ball bearings, shields on both sides, concentric
ds | 6 mm | Linear shaft diameter |
D | 24 mm | Outside diameter |
B | 26 mm | Overall width |
C | 11 mm | Width outer ring |
AT | 14 mm | Linear shaft center to bore center diameter |
B1 | 2 mm | Mounting surface to bearing side end surface width |
B2 | 6 mm | Mounting plate width |
lG | 7 mm | Thread width |
SW | 4 mm | Internal hex size |
G | M8 | Thread size |
C | 3500 N | Basic load rating Dynamic |
C0 | 2200 N | Basic load rating Static |
Fa | 170 N | Axial load |
Fr | 870 N | Radial load |
≈m | 0.042 kg | Weight |
Type | Concentric | Adjustability |
LFR Roller | LFR50/8-6-2Z | Mounted roller no. |
C42 | Carriage | |
IL42 | Linear guide |
NIKO |
RPC24 |
Bearing tolerances and clearances
Inner ring | ||||||||||||
d | tΔdmp | tVdsp1) | tVdmp1) | tΔBs | tVBs | tKia | ||||||
Diameter series | All | Normal | Modified3) | |||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1 | 2, 3, 4 | U | L | L | |||
mm | μm | μm | μm | μm | μm | μm | ||||||
– | 2.5 | 0 | –8 | 10 | 8 | 6 | 6 | 0 | –40 | – | 12 | 10 |
2.5 | 10 | 0 | –8 | 10 | 8 | 6 | 6 | 0 | –120 | –250 | 15 | 10 |
10 | 18 | 0 | –8 | 10 | 8 | 6 | 6 | 0 | –120 | –250 | 20 | 10 |
18 | 30 | 0 | –10 | 13 | 10 | 8 | 8 | 0 | –120 | –250 | 20 | 13 |
30 | 50 | 0 | –12 | 15 | 12 | 9 | 9 | 0 | –120 | –250 | 20 | 15 |
50 | 80 | 0 | –15 | 19 | 19 | 11 | 11 | 0 | –150 | –380 | 25 | 20 |
80 | 120 | 0 | –20 | 25 | 25 | 15 | 15 | 0 | –200 | –380 | 25 | 25 |
120 | 180 | 0 | –25 | 31 | 31 | 19 | 19 | 0 | –250 | –500 | 30 | 30 |
180 | 250 | 0 | –30 | 38 | 38 | 23 | 23 | 0 | –300 | –500 | 30 | 40 |
250 | 315 | 0 | –35 | 44 | 44 | 26 | 26 | 0 | –350 | –500 | 35 | 50 |
315 | 400 | 0 | –40 | 50 | 50 | 30 | 30 | 0 | –400 | –630 | 40 | 60 |
400 | 500 | 0 | –45 | 56 | 56 | 34 | 34 | 0 | –450 | – | 50 | 65 |
500 | 630 | 0 | –50 | 63 | 63 | 38 | 38 | 0 | –500 | – | 60 | 70 |
630 | 800 | 0 | –75 | – | – | – | – | 0 | –750 | – | 70 | 80 |
800 | 1 000 | 0 | –100 | – | – | – | – | 0 | –1 000 | – | 80 | 90 |
1 000 | 1 250 | 0 | –125 | – | – | – | – | 0 | –1 250 | – | 100 | 100 |
1 250 | 1 600 | 0 | –160 | – | – | – | – | 0 | –1 600 | – | 120 | 120 |
1 600 | 2 000 | 0 | –200 | – | – | – | – | 0 | –2 000 | – | 140 | 140 |
Outer ring | ||||||||||||
D | tΔDmp | tVDsp4) | tVDmp4) | tΔCs, tVCs | tKea | |||||||
Open bearings | Capped bearings5) | |||||||||||
Diameter series | ||||||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1 | 2, 3, 4 | 2, 3, 4 | |||||
mm | μm | μm | μm | μm | μm | |||||||
2.5 | 18 | 0 | –8 | 10 | 8 | 6 | 10 | 6 | Identical to tΔBs and tVBs of an inner ring of the same bearing as the outer ring | 15 | ||
18 | 30 | 0 | –9 | 12 | 9 | 7 | 12 | 7 | 15 | |||
30 | 50 | 0 | –11 | 14 | 11 | 8 | 16 | 8 | 20 | |||
50 | 80 | 0 | –13 | 16 | 13 | 10 | 20 | 10 | 25 | |||
80 | 120 | 0 | –15 | 19 | 19 | 11 | 26 | 11 | 35 | |||
120 | 150 | 0 | –18 | 23 | 23 | 14 | 30 | 14 | 40 | |||
150 | 180 | 0 | –25 | 31 | 31 | 19 | 38 | 19 | 45 | |||
180 | 250 | 0 | –30 | 38 | 38 | 23 | – | 23 | 50 | |||
250 | 315 | 0 | –35 | 44 | 44 | 26 | – | 26 | 60 | |||
315 | 400 | 0 | –40 | 50 | 50 | 30 | – | 30 | 70 | |||
400 | 500 | 0 | –45 | 56 | 56 | 34 | – | 34 | 80 | |||
500 | 630 | 0 | –50 | 63 | 63 | 38 | – | 38 | 100 | |||
630 | 800 | 0 | –75 | 94 | 94 | 55 | – | 55 | 120 | |||
800 | 1 000 | 0 | –100 | 125 | 125 | 75 | – | 75 | 140 | |||
1 000 | 1 250 | 0 | –125 | – | – | – | – | – | 160 | |||
1 250 | 1 600 | 0 | –160 | – | – | – | – | – | 190 | |||
1 600 | 2 000 | 0 | –200 | – | – | – | – | – | 220 | |||
2 000 | 2 500 | 0 | –250 | – | – | – | – | – | 250 | |||
1) Except tapered bore. |
Inner ring | ||||||||||||
d | tΔdmp1) | tVdsp1) | tVdmp | tΔBs | tVBs | tKia | ||||||
Diameter series | All | Normal | Modified3) | |||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1 | 2, 3, 4 | U | L | L | |||
mm | μm | μm | μm | μm | μm | μm | ||||||
– | 2.5 | 0 | –7 | 9 | 7 | 5 | 5 | 0 | –40 | – | 12 | 5 |
2.5 | 10 | 0 | –7 | 9 | 7 | 5 | 5 | 0 | –120 | –250 | 15 | 6 |
10 | 18 | 0 | –7 | 9 | 7 | 5 | 5 | 0 | –120 | –250 | 20 | 7 |
18 | 30 | 0 | –8 | 10 | 8 | 6 | 6 | 0 | –120 | –250 | 20 | 8 |
30 | 50 | 0 | –10 | 13 | 10 | 8 | 8 | 0 | –120 | –250 | 20 | 10 |
50 | 80 | 0 | –12 | 15 | 15 | 9 | 9 | 0 | –150 | –380 | 25 | 10 |
80 | 120 | 0 | –15 | 19 | 19 | 11 | 11 | 0 | –200 | –380 | 25 | 13 |
120 | 180 | 0 | –18 | 23 | 23 | 14 | 14 | 0 | –250 | –500 | 30 | 18 |
180 | 250 | 0 | –22 | 28 | 28 | 17 | 17 | 0 | –300 | –500 | 30 | 20 |
250 | 315 | 0 | –25 | 31 | 31 | 19 | 19 | 0 | –350 | –500 | 35 | 25 |
315 | 400 | 0 | –30 | 38 | 38 | 23 | 23 | 0 | –400 | –630 | 40 | 30 |
400 | 500 | 0 | –35 | 44 | 44 | 26 | 26 | 0 | –450 | – | 45 | 35 |
500 | 630 | 0 | –40 | 50 | 50 | 30 | 30 | 0 | –500 | – | 50 | 40 |
630 | 800 | 0 | –50 | – | – | – | – | 0 | –750 | – | 60 | 45 |
800 | 1 000 | 0 | –60 | – | – | – | – | 0 | –1 000 | – | 60 | 50 |
1 000 | 1 250 | 0 | –75 | – | – | – | – | 0 | –1 250 | – | 70 | 60 |
1 250 | 1 600 | 0 | –90 | – | – | – | – | 0 | –1 600 | – | 70 | 70 |
1 600 | 2 000 | 0 | –115 | – | – | – | – | 0 | –2 000 | – | 80 | 80 |
Outer ring | ||||||||||||
D | tΔDmp | tVDsp4) | VDmp4) | tΔCs, tVCs | tKea | |||||||
Open bearings | Capped bearings5) | |||||||||||
Diameter series | ||||||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1 | 2, 3, 4 | 0, 1, 2, 3, 4 | |||||
mm | μm | μm | μm | μm | μm | |||||||
2.5 | 18 | 0 | –7 | 9 | 7 | 5 | 9 | 5 | Identical to tΔBs and tVBs of an inner ring of the same bearing as the outer ring | 8 | ||
18 | 30 | 0 | –8 | 10 | 8 | 6 | 10 | 6 | 9 | |||
30 | 50 | 0 | –9 | 11 | 9 | 7 | 13 | 7 | 10 | |||
50 | 80 | 0 | –11 | 14 | 11 | 8 | 16 | 8 | 13 | |||
80 | 120 | 0 | –13 | 16 | 16 | 10 | 20 | 10 | 18 | |||
120 | 150 | 0 | –15 | 19 | 19 | 11 | 25 | 11 | 20 | |||
150 | 180 | 0 | –18 | 23 | 23 | 14 | 30 | 14 | 23 | |||
180 | 250 | 0 | –20 | 25 | 25 | 15 | – | 15 | 25 | |||
250 | 315 | 0 | –25 | 31 | 31 | 19 | – | 19 | 30 | |||
315 | 400 | 0 | –28 | 35 | 35 | 21 | – | 21 | 35 | |||
400 | 500 | 0 | –33 | 41 | 41 | 25 | – | 25 | 40 | |||
500 | 630 | 0 | –38 | 48 | 48 | 29 | – | 29 | 50 | |||
630 | 800 | 0 | –45 | 56 | 56 | 34 | – | 34 | 60 | |||
800 | 1 000 | 0 | –60 | 75 | 75 | 45 | – | 45 | 75 | |||
1 000 | 1 250 | 0 | –75 | – | – | – | – | – | 85 | |||
1 250 | 1 600 | 0 | –90 | – | – | – | – | – | 100 | |||
1 600 | 2 000 | 0 | –115 | – | – | – | – | – | 100 | |||
2 000 | 2 500 | 0 | –135 | – | – | – | – | – | 120 | |||
1) Tolerances for tapered bores (except taper 1:12) 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring. 5) Capped bearings are sealed or shielded bearings. |
Inner ring | |||||||||||||
d | tΔdmp1) | tVdsp1) | tVdmp | tΔBs | tVBs | tKia | tSd | tSia3) | |||||
Diameter series | All | Normal | Modified4) | ||||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1, 2, 3, 4 | U | L | L | |||||
mm | μm | μm | μm | μm | μm | μm | μm | μm | |||||
– | 2.5 | 0 | –5 | 5 | 4 | 3 | 0 | –40 | –250 | 5 | 4 | 7 | 7 |
2.5 | 10 | 0 | –5 | 5 | 4 | 3 | 0 | –40 | –250 | 5 | 4 | 7 | 7 |
10 | 18 | 0 | –5 | 5 | 4 | 3 | 0 | –80 | –250 | 5 | 4 | 7 | 7 |
18 | 30 | 0 | –6 | 6 | 5 | 3 | 0 | –120 | –250 | 5 | 4 | 8 | 8 |
30 | 50 | 0 | –8 | 8 | 6 | 4 | 0 | –120 | –250 | 5 | 5 | 8 | 8 |
50 | 80 | 0 | –9 | 9 | 7 | 5 | 0 | –150 | –250 | 6 | 5 | 8 | 8 |
80 | 120 | 0 | –10 | 10 | 8 | 5 | 0 | –200 | –380 | 7 | 6 | 9 | 9 |
120 | 180 | 0 | –13 | 13 | 10 | 7 | 0 | –250 | –380 | 8 | 8 | 10 | 10 |
180 | 250 | 0 | –15 | 15 | 12 | 8 | 0 | –300 | –500 | 10 | 10 | 11 | 13 |
250 | 315 | 0 | –18 | 18 | 14 | 9 | 0 | –350 | –500 | 13 | 13 | 13 | 15 |
315 | 400 | 0 | –23 | 23 | 18 | 12 | 0 | –400 | –630 | 15 | 15 | 15 | 20 |
400 | 500 | 0 | –28 | 28 | 21 | 14 | 0 | –450 | – | 18 | 17 | 18 | 23 |
500 | 630 | 0 | –35 | 35 | 26 | 18 | 0 | –500 | – | 20 | 19 | 20 | 25 |
630 | 800 | 0 | –45 | – | – | – | 0 | –750 | – | 26 | 22 | 26 | 30 |
800 | 1 000 | 0 | –60 | – | – | – | 0 | –1 000 | – | 32 | 26 | 32 | 30 |
1 000 | 1 250 | 0 | –75 | – | – | – | 0 | –1 250 | – | 38 | 30 | 38 | 30 |
1 250 | 1 600 | 0 | –90 | – | – | – | 0 | –1 600 | – | 45 | 35 | 45 | 30 |
1 600 | 2 000 | 0 | –115 | – | – | – | 0 | –2 000 | – | 55 | 40 | 55 | 30 |
Outer ring | |||||||||||||
D | tΔDmp | tVDsp5) | tVDmp | tΔCs | tVCs | tKea | tSD6) | tSea3) | |||||
Diameter series | |||||||||||||
> | ≤ | U | L | 7, 8, 92) | 0, 1, 2, 3, 4 | ||||||||
mm | μm | μm | μm | μm | μm | μm | μm | μm | |||||
2.5 | 18 | 0 | –5 | 5 | 4 | 3 | Identical to ΔBs and VBs of an inner ring of the same bearing as the outer ring | 5 | 5 | 4 | 8 | ||
18 | 30 | 0 | –6 | 6 | 5 | 3 | 5 | 6 | 4 | 8 | |||
30 | 50 | 0 | –7 | 7 | 5 | 4 | 5 | 7 | 4 | 8 | |||
50 | 80 | 0 | –9 | 9 | 7 | 5 | 6 | 8 | 4 | 10 | |||
80 | 120 | 0 | –10 | 10 | 8 | 5 | 8 | 10 | 4,5 | 11 | |||
120 | 150 | 0 | –11 | 11 | 8 | 6 | 8 | 11 | 5 | 13 | |||
150 | 180 | 0 | –13 | 13 | 10 | 7 | 8 | 13 | 5 | 14 | |||
180 | 250 | 0 | –15 | 15 | 11 | 8 | 10 | 15 | 5,5 | 15 | |||
250 | 315 | 0 | –18 | 18 | 14 | 9 | 11 | 18 | 6,5 | 18 | |||
315 | 400 | 0 | –20 | 20 | 15 | 10 | 13 | 20 | 6,5 | 20 | |||
400 | 500 | 0 | –23 | 23 | 17 | 12 | 15 | 23 | 7,5 | 23 | |||
500 | 630 | 0 | –28 | 28 | 21 | 14 | 18 | 25 | 9 | 25 | |||
630 | 800 | 0 | –35 | 35 | 26 | 18 | 20 | 30 | 10 | 30 | |||
800 | 1 000 | 0 | –50 | 50 | 29 | 25 | 25 | 35 | 12,5 | – | |||
1 000 | 1 250 | 0 | –63 | – | – | – | 30 | 40 | 15 | – | |||
1 250 | 1 600 | 0 | –80 | – | – | – | 35 | 45 | 17,5 | – | |||
1 600 | 2 000 | 0 | –100 | – | – | – | 38 | 55 | 20 | – | |||
2 000 | 2 500 | 0 | –125 | – | – | – | 45 | 65 | 25 | – | |||
1) Tolerances for tapered bores (except taper 1:12 and 1:30). 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring. 5) Capped bearings are sealed or shielded bearings. |
Bore diameter | Radial internal clearance | ||||||||||
d | C2 | Normal | C3 | C4 | C5 | ||||||
> | ≤ | min. | max. | min. | max. | min. | max. | min. | max. | min. | max. |
mm | µm | ||||||||||
Stainless steel deep groove ball bearings with a bore diameter < 10 mm | |||||||||||
- | 9.525 | 3 | 8 | 5 | 10 | 8 | 13 | 13 | 20 | 20 | 28 |
All other deep groove ball bearings | |||||||||||
2.5 | 6 | 0 | 7 | 2 | 13 | 8 | 23 | – | – | – | – |
6 | 10 | 0 | 7 | 2 | 13 | 8 | 23 | 14 | 29 | 20 | 37 |
10 | 18 | 0 | 9 | 3 | 18 | 11 | 25 | 18 | 33 | 25 | 45 |
18 | 24 | 0 | 10 | 5 | 20 | 13 | 28 | 20 | 36 | 28 | 48 |
24 | 30 | 1 | 11 | 5 | 20 | 13 | 28 | 23 | 41 | 30 | 53 |
30 | 40 | 1 | 11 | 6 | 20 | 15 | 33 | 28 | 46 | 40 | 64 |
40 | 50 | 1 | 11 | 6 | 23 | 18 | 36 | 30 | 51 | 45 | 73 |
50 | 65 | 1 | 15 | 8 | 28 | 23 | 43 | 38 | 61 | 55 | 90 |
65 | 80 | 1 | 15 | 10 | 30 | 25 | 51 | 46 | 71 | 65 | 105 |
80 | 100 | 1 | 18 | 12 | 36 | 30 | 58 | 53 | 84 | 75 | 120 |
100 | 120 | 2 | 20 | 15 | 41 | 36 | 66 | 61 | 97 | 90 | 140 |
120 | 140 | 2 | 23 | 18 | 48 | 41 | 81 | 71 | 114 | 105 | 160 |
140 | 160 | 2 | 23 | 18 | 53 | 46 | 91 | 81 | 130 | 120 | 180 |
160 | 180 | 2 | 25 | 20 | 61 | 53 | 102 | 91 | 147 | 135 | 200 |
180 | 200 | 2 | 30 | 25 | 71 | 63 | 117 | 107 | 163 | 150 | 230 |
200 | 225 | 2 | 35 | 25 | 85 | 75 | 140 | 125 | 195 | 175 | 265 |
225 | 250 | 2 | 40 | 30 | 95 | 85 | 160 | 145 | 225 | 205 | 300 |
250 | 280 | 2 | 45 | 35 | 105 | 90 | 170 | 155 | 245 | 225 | 340 |
280 | 315 | 2 | 55 | 40 | 115 | 100 | 190 | 175 | 270 | 245 | 370 |
315 | 355 | 3 | 60 | 45 | 125 | 110 | 210 | 195 | 300 | 275 | 410 |
355 | 400 | 3 | 70 | 55 | 145 | 130 | 240 | 225 | 340 | 315 | 460 |
400 | 450 | 3 | 80 | 60 | 170 | 150 | 270 | 250 | 380 | 350 | 520 |
450 | 500 | 3 | 90 | 70 | 190 | 170 | 300 | 280 | 420 | 390 | 570 |
500 | 560 | 10 | 100 | 80 | 210 | 190 | 330 | 310 | 470 | 440 | 630 |
560 | 630 | 10 | 110 | 90 | 230 | 210 | 360 | 340 | 520 | 490 | 700 |
630 | 710 | 20 | 130 | 110 | 260 | 240 | 400 | 380 | 570 | 540 | 780 |
710 | 800 | 20 | 140 | 120 | 290 | 270 | 450 | 430 | 630 | 600 | 860 |
800 | 900 | 20 | 160 | 140 | 320 | 300 | 500 | 480 | 700 | 670 | 960 |
900 | 1 000 | 20 | 170 | 150 | 350 | 330 | 550 | 530 | 770 | 740 | 1 040 |
1 000 | 1 120 | 20 | 180 | 160 | 380 | 360 | 600 | 580 | 850 | 820 | 1 150 |
1 120 | 1 250 | 20 | 190 | 170 | 410 | 390 | 650 | 630 | 920 | 890 | 1 260 |
1 250 | 1 400 | 30 | 200 | 190 | 440 | 420 | 700 | 680 | 1 000 | – | – |
1 400 | 1 600 | 30 | 210 | 210 | 470 | 450 | 750 | 730 | 1 060 | – | – |
Nominal | Axial internal clearance | ||||||||
bore diameter | |||||||||
d | C2 | CN | C3 | C4 | |||||
(Group 2) | (Group N) | (Group 3) | (Group 4) | ||||||
mm | μm | μm | μm | μm | |||||
> | ≤ | min. | max. | min. | max. | min. | max. | min. | max. |
‒ | 10 | 1 | 11 | 5 | 21 | 12 | 28 | 25 | 45 |
10 | 18 | 1 | 12 | 6 | 23 | 13 | 31 | 27 | 47 |
18 | 24 | 2 | 14 | 7 | 25 | 16 | 34 | 27 | 47 |
24 | 30 | 2 | 15 | 8 | 27 | 18 | 37 | 30 | 50 |
30 | 40 | 2 | 16 | 9 | 29 | 21 | 40 | 33 | 54 |
40 | 50 | 2 | 18 | 11 | 33 | 23 | 44 | 36 | 58 |
50 | 65 | 3 | 22 | 13 | 36 | 26 | 48 | 40 | 63 |
65 | 80 | 3 | 24 | 15 | 40 | 30 | 54 | 46 | 71 |
80 | 100 | 3 | 26 | 18 | 46 | 35 | 63 | 55 | 83 |
100 | 120 | 4 | 30 | 22 | 53 | 42 | 73 | 65 | 96 |
120 | 140 | 4 | 34 | 25 | 59 | 48 | 82 | 74 | 108 |