KOYO BEAIRNG
| Shaft Dia. | Fw | D | C | X max. | Bearing Designation | Loadย Ratings | Fatigue Load Limit Cu | Approx.ย Wt. | Mounting Dimensions | Inspectionย gage | Mounting innerย ring (pages B-2-74 toย B-2-76) | ||||||
| +0ย ย ย +0.000ย -0.3 ย -0.012 | Dynamic | Static | Shaft | Housing | |||||||||||||
| Openย Ends | Closedย Oneย End | C | C0 | Openย Ends | Closed Oneย End | Max. | Min. | Max. | Min. | ||||||||
| in | mm in | mm in | mm in | mm in | kN lbf | kN | kg lbs | mm in | mm in | mm in | mm in | ||||||
| 1/8 | 3.175 0.1250 | 6.350 0.2500 | 6.35 0.250 | โ | B-24 | โ | 1.73 390 | 1.65 370 | 0.24 | 0.001 0.002 | โ | 3.175 0.1250 | 3.167 0.1247 | 6.363 0.2505 | 6.350 0.2500 | Tableย B2-7 | |
| 5/32 | 3.970 0.1563 | 7.142 0.2812 | 6.35 0.250 | B-2ย 1/2 4 | 2.00 450 | 2.00 450 | 0.31 | 0.001 0.002 | โ | 3.970 0.1563 | 3.962 0.1560 | 7.155 0.2817 | 7.142 0.2812 | Tableย B2-7 | |||
| 3.970 0.1563 | 7.142 0.2812 | 7.92 0.312 | B-2ย 1/2ย 5 | 2.58 580 | 2.80 630 | 0.42 | 0.001 0.003 | โ | 3.970 0.1563 | 3.962 0.1560 | 7.155 0.2817 | 7.142 0.2812 | Tableย B2-7 | ||||
| 3/16 | 4.763 0.1875 | 8.733 0.3438 | 6.35 0.250 | 1.78 0.070 | B-34 | M-341 | 2.20 490 | 2.12 480 | 0.36 | 0.001 0.003 | 0.002 0.004 | 4.763 0.1875 | 4.755 0.1872 | 8.730 0.3437 | 8.717 0.3432 | Tableย B2-7 | |
| 4.763 0.1875 | 8.733 0.3438 | 9.53 0.375 | 1.78 0.070 | B-36 | M-361 | 3.78 850 | 4.23 950 | 0.64 | 0.002 0.005 | 0.003 0.006 | 4.763 0.1875 | 4.755 0.1872 | 8.730 0.3437 | 8.717 0.3432 | Tableย B2-7 | ||
| 1/4 | 6.350 0.2500 | 11.113 0.4375 | 6.35 0.250 | 2.03 0.080 | B-44 | M-441 | 2.74 620 | 2.63 590 | 0.45 | 0.002 0.005 | 0.003 0.006 | 6.350 0.2500 | 6.337 0.2495 | 11.125 0.4380 | 11.100 0.4370 | Tableย B2-7 | |
| 6.350 0.2500 | 11.113 0.4375 | 7.92 0.312 | 2.03 0.080 | B-45 | M-451 | 3.55 800 | 3.68 830 | 0.56 | 0.003 0.007 | 0.004 0.008 | 6.350 0.2500 | 6.337 0.2495 | 11.125 0.4380 | 11.100 0.4370 | Tableย B2-7 | ||
| 6.350 0.2500 | 11.113 0.4375 | 9.53 0.375 | โ | B-46 | โ | 4.55 1020 | 5.06 1140 | 0.77 | 0.004 0.008 | โ | 6.350 0.2500 | 6.337 0.2495 | 11.125 0.4380 | 11.100 0.4370 | Tableย B2-7 | ||
| 6.350 0.2500 | 11.113 0.4375 | 11.13 0.438 | 2.03 0.080 | B-47 | M-471 | 5.51 1240 | 6.46 1450 | 0.98 | 0.004 0.009 | 0.005 0.011 | 6.350 0.2500 | 6.337 0.2495 | 11.125 0.4380 | 11.100 0.4370 | Tableย B2-7 | ||
| 5/16 | 7.938 0.3125 | 12.700 0.5000 | 7.92 0.312 | 2.03 0.080 | B-55 | M-551 | 4.08 920 | 4.60 1030 | 0.70 | 0.004 0.008 | 0.004 0.009 | 7.938 0.3125 | 7.925 0.3120 | 12.713 0.5005 | 12.687 0.4995 | Tableย B2-7 | |
| 7.938 0.3125 | 12.700 0.5000 | 9.53 0.375 | B-56 | 5.23 1180 | 6.33 1420 | 0.97 | 0.005 0.010 | โ | 7.938 0.3125 | 7.925 0.3120 | 12.713 0.5005 | 12.687 0.4995 | Tableย B2-7 | ||||
| 7.938 0.3125 | 12.700 0.5000 | 11.13 0.438 | 2.03 0.080 | B-57 | M-571 | 6.33 1420 | 8.09 1820 | 1.20 | 0.005 0.011 | 0.006 0.013 | 7.938 0.3125 | 7.925 0.3120 | 12.713 0.5005 | 12.687 0.4995 | Tableย B2-7 | ||
| 7.938 0.3125 | 12.700 0.5000 | 14.27 0.562 | B-59 | 8.37 1880 | 11.6 2600 | 1.75 | 0.006 0.014 | โ | 7.938 0.3125 | 7.925 0.3120 | 12.713 0.5005 | 12.687 0.4995 | Tableย B2-7 | ||||
| 7.938 0.3125 | 14.288 0.5625 | 11.13 0.438 | 2.29 0.090 | BH-57 | MH-571 | 7.01 1580 | 7.33 1650 | 1.10 | 0.007 0.016 | 0.008 0.018 | 7.938 0.3125 | 7.925 0.3120 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | ||
| 7.938 0.3125 | 14.288 0.5625 | 14.27 0.562 | โ | BH-59 | โ | 9.46 2130 | 10.8 2420 | 1.65 | 0.009 0.020 | โ | 7.938 0.3125 | 7.925 0.3120 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | ||
| 21/64 | 8.331 0.3280 | 14.288 0.5625 | 12.70 0.500 | โ | NB-3 | โ | 8.10 1820 | 9.56 2150 | 1.45 | 0.008 0.018 | โ | 8.331 0.3280 | 8.319 0.3275 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | |
| 3/8 | 9.525 0.3750 | 14.288 0.5625 | 7.92 0.312 | 2.03 0.080 | B-65 | M-651 | 4.55 1020 | 5.53 1240 | 0.84 | 0.004 0.009 | 0.005 0.010 | 9.525 0.3750 | 9.512 0.3745 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | IRA-3 |
| 9.525 0.3750 | 14.288 0.5625 | 9.53 0.375 | 2.03 0.080 | B-66 | M-661 | 5.83 1310 | 7.61 1710 | 1.15 | 0.005 0.011 | 0.005 0.012 | 9.525 0.3750 | 9.512 0.3745 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | IRA-3 | |
| 9.525 0.3750 | 14.288 0.5625 | 11.13 0.438 | B-67 | 7.06 1590 | 9.72 2190 | 1.45 | 0.006 0.013 | โ | 9.525 0.3750 | 9.512 0.3745 | 14.300 0.5630 | 14.275 0.5620 | Tableย B2-7 | IRA-3 | |||
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