KOYO BEAIRNG
| Shaft Dia. | d | F | B | rsย min. | Inner Ring Designation | Mounting Dimensions Transition Fit | Approx. Wt. | ||||||
| Loose | Tight | ||||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Min. | Max. | Min. | Max. | Min. | |||
| in | mm in | mm in | mm in | mm in | mm in | mm in | mm in | mm in | mm in | mm in | mm in | kg lbs | |
| 3/16 | 4.826 0.1900 | 4.813 0.1895 | 9.525 0.3750 | 9.512 0.3745 | 13.61 0.536 | 13.36 0.526 | 0.64 0.025 | IRA-3 | 4.818 0.1897 | 4.806 0.1892 | 4.829 0.1901 | 4.816 0.1896 | 0.005 0.012 |
| 1/4 | 6.350 0.2500 | 6.337 0.2495 | 11.113 0.4375 | 11.100 0.4370 | 13.61 0.536 | 13.36 0.526 | 0.64 0.025 | IRA-4 | 6.342 0.2497 | 6.330 0.2492 | 6.353 0.2501 | 6.340 0.2496 | 0.006 0.014 |
| 5/16 | 7.938 0.3125 | 7.925 0.3120 | 12.700 0.5000 | 12.687 0.4995 | 13.61 0.536 | 13.36 0.526 | 0.64 0.025 | IRA-5 | 7.930 0.3122 | 7.917 0.3117 | 7.940 0.3126 | 7.927 0.3121 | 0.008 0.017 |
| 3/8 | 9.525 0.3750 | 9.512 0.3745 | 14.288 0.5625 | 14.275 0.5620 | 13.08 0.515 | 12.83 0.505 | 0.64 0.025 | IR-68 | 9.517 0.3747 | 9.505 0.3742 | 9.528 0.3751 | 9.515 0.3746 | 0.009 0.019 |
| 9.525 | 9.512 | 14.288 | 14.275 | 19.43 | 19.18 | 0.64 | IR-612 | 9.517 | 9.505 | 9.528 | 9.515 | 0.013 | |
| 0.3750 | 0.3745 | 0.5625 | 0.5620 | 0.765 | 0.755 | 0.025 | 0.3747 | 0.3742 | 0.3751 | 0.3746 | 0.028 | ||
| 9.525 | 9.512 | 14.288 | 14.275 | 19.96 | 19.71 | 0.64 | IRA-6 | 9.517 | 9.505 | 9.528 | 9.515 | 0.013 | |
| 0.3750 | 0.3745 | 0.5625 | 0.5620 | 0.786 | 0.776 | 0.025 | 0.3747 | 0.3742 | 0.3751 | 0.3746 | 0.029 | ||
| 9.525 | 9.512 | 15.875 | 15.862 | 13.08 | 12.83 | 0.64 | IR-68-1 | 9.517 | 9.505 | 9.528 | 9.515 | 0.012 | |
| 0.3750 | 0.3745 | 0.6250 | 0.6245 | 0.515 | 0.505 | 0.025 | 0.3747 | 0.3742 | 0.3751 | 0.3746 | 0.027 | ||
| 9.525 | 9.512 | 15.875 | 15.862 | 19.43 | 19.18 | 0.64 | IR-612-1 | 9.517 | 9.505 | 9.528 | 9.515 | 0.018 | |
| 0.3750 | 0.3745 | 0.6250 | 0.6245 | 0.765 | 0.755 | 0.025 | 0.3747 | 0.3742 | 0.3751 | 0.3746 | 0.040 | ||
| 7/16 | 11.113 0.4375 | 11.100 0.4370 | 15.875 0.6250 | 15.862 0.6245 | 19.96 0.786 | 19.71 0.776 | 0.64 0.025 | IRA-7 | 11.105 0.4372 | 11.092 0.4367 | 11.115 0.4376 | 11.102 0.4371 | 0.015 0.033 |
| 1/2 | 12.700 0.5000 | 12.687 0.4995 | 19.050 0.7500 | 19.037 0.7495 | 13.08 0.515 | 12.83 0.505 | 1.02 0.040 | IR-88 | 12.692 0.4997 | 12.680 0.4992 | 12.703 0.5001 | 12.690 0.4996 | 0.015 0.033 |
| 12.700 | 12.687 | 19.050 | 19.037 | 19.43 | 19.18 | 1.02 | IR-812 | 12.692 | 12.680 | 12.703 | 12.690 | 0.023 | |
| 0.5000 | 0.4995 | 0.7500 | 0.7495 | 0.765 | 0.755 | 0.040 | 0.4997 | 0.4992 | 0.5001 | 0.4996 | 0.050 | ||
CMTG BEARING CO.,LIMITED. ย has been engaged in bearing industry for many years, we provide a wide selections of brands, includingย FAG bearing,ย SKF bearing,NSKย bearing,Nachi bearing, TIMKEN bearing, THK Linear Guide and Linear Block โฆect.
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