Ceramic Ball Bearings:
Open type (Inch series)
| Bearing Designation | Bore Diameter(d) | Outer Diameter (D) | Width(b) | Load Rating Cr(N) | Load Rating Cor(N) | Max.Speed (1000rpm) | Weight (g) | |||
| mm | in | mm | in | mm | in | Oil | ||||
| R1-4 | 1.984 | 5/64" | 6.35 | 1/4" | 2.38 | 3/32" | 284 | 96 | 80 | 0.4 |
| R133 | 2.38 | 3/32" | 4.762 | 3/16" | 1.588 | 0.0626" | 144 | 53 | 95 | 0.1 |
| R1-5 | 7.938 | 5/16" | 2.779 | 0.1094" | 552 | 176 | 71 | 0.6 | ||
| R144 | 3.175 | 6.35 | 1/4" | 2.38 | 3/32" | 284 | 96 | 80 | 0.27 | |
| R2-5 | 7.938 | 5/16" | 2.779 | 0.1094" | 558 | 180 | 67 | 0.5 | ||
| R2-6 | 1/8" | 9.525 | 3/8" | 2.779 | 0.1094" | 640 | 227 | 63 | 0.96 | |
| R2 | 9.525 | 3/8" | 3.967 | 5/32" | 631 | 219 | 67 | 1.04 | ||
| R2A | 12.7 | 1/2" | 4.366 | 0.1720" | 640 | 227 | 63 | 3.3 | ||
| R155 | 3.967 | 5/32" | 7.938 | 5/16" | 2.779 | 0.1094" | 359 | 150 | 63 | 0.51 |
| R156 | 4.762 | 7.938 | 5/16" | 2.779 | 0.1094" | 359 | 150 | 63 | 0.4 | |
| R166 | 9.525 | 3/8" | 3.175 | 1/8" | 709 | 272 | 60 | 0.81 | ||
| R3 | 3/16" | 12.7 | 1/2" | 3.967 | 5/32" | 1301 | 488 | 53 | 2.21 | |
| R3A | 15.875 | 5/8" | 4.978 | 0.1961" | 1480 | 621 | 45 | 45 | ||
| 1601 | 17.462 | 11/16" | 6.35 | 1/4" | 1510 | 720 | 4.75 | |||
| R168 | 6.35 | 9.525 | 3/8" | 3.175 | 1/8" | 373 | 172 | 56 | 0.57 | |
| R188 | 12.7 | 1/2" | 3.175 | 1/8" | 1082 | 442 | 50 | 1.6 | ||
| R4 | 1/4" | 15.875 | 5/8" | 4.978 | 0.1961" | 1480 | 621 | 45 | 4.46 | |
| R4A | 19.05 | 3/4" | 5.558 | 0.2189" | 2336 | 896 | 43 | 7.48 | ||
| 1602 | 17.462 | 11/16" | 6.35 | 1/4" | 1510 | 720 | 6 | |||
| R1810 | 7.938 | 12.7 | 1/2" | 3.967 | 5/32" | 542 | 276 | 48 | 1.39 | |
| 1603 | 5/16" | 22.225 | 7/8" | 7.144 | 9/32" | 2540 | 1340 | 10 | ||
| 1605 | 23.019 | 29/32" | 7.938 | 5/16" | 2540 | 1340 | 12 | |||
| R6 | 9.525 | 22.225 | 7/8" | 5.558 | 0.2189" | 3332 | 1422 | 38 | 9.02 | |
| R1038 | 15.875 | 5/8" | 3.967 | 5/32" | 815 | 411 | 31 | 2.71 | ||
| 1604 | 3/8" | 22.225 | 7/8" | 7.144 | 9/32" | 2540 | 1340 | 15 | ||
| 1606 | 23.019 | 29/32" | 7.938 | 5/16" | 2540 | 1340 | 14 | |||
| 1614 | 28.575 | 1-1/8" | 9.525 | 3/8" | 3920 | 2240 | 35 | |||
| 1607 | 11.112 | 23.019 | 29/32" | 7.938 | 5/16" | 3550 | 1930 | 16 | ||
| 1615 | 7/16" | 28.575 | 1-1/8" | 9.525 | 3/8" | 3920 | 2240 | 32 | ||
| 1620 | 34.925 | 1-3/8" | 11.11 | 7/16" | 5880 | 3470 | 50 | |||
| R1212 | 12.7 | 19.05 | 3/4" | 3.967 | 5/32" | 898 | 524 | 26 | 3.49 | |
| R8 | 28.575 | 1-1/8" | 6.35 | 0.25" | 2108 | 2415 | 32 | 11.6 | ||
| 1616 | 1/2" | 28.575 | 1-1/8" | 9.525 | 3/8" | 3920 | 2240 | 30 | ||
| 1621 | 34.925 | 1-3/8" | 11.11 | 7/16" | 5880 | 3470 | 48 | |||
| RLS4 | 33.338 | 1-5/16" | 9.525 | 3/8" | 5200 | 3800 | 24 | 30 | ||
| RMS4 | 41.275 | 1-5/8" | 15.88 | 5/8" | 9000 | 5700 | 21 | 100 | ||
| 1622 | 14.288 | 9/16" | 34.925 | 1-3/8" | 11.11 | 7/16" | 5880 | 3470 | 46 | |
| R1458 | 15.875 | 22.225 | 7/8" | 3.967 | 5/32" | 968 | 619 | 24 | 4.7 | |
| R10 | 34.925 | 1-3/8" | 5.54 | 0.2181" | 5988 | 3287 | 25 | 23.5 | ||
| 1623 | 34.925 | 1-3/8" | 11.11 | 7/16" | 5880 | 3470 | 40 | |||
| 1628 | 5/8" | 41.275 | 1-5/8" | 12.7 | 1/2" | 7230 | 4440 | 72 | ||
| 1633 | 44.45 | 1-3/4" | 12.7 | 1/2" | 7230 | 4440 | 90 | |||
| RLS5 | 39.688 | 1-9/16" | 11.11 | 7/16" | 7200 | 4300 | 21 | 60 | ||
| RMS5 | 46.038 | 1-13/16" | 15.88 | 5/8" | 10600 | 6300 | 17 | 110 | ||
| R1634 | 19.05 | 25.4 | 1" | 3.967 | 5/32" | 1011 | 691 | 20 | 5 | |
| R12 | 41.275 | 1-5/8" | 7.94 | 0.3126" | 7250 | 4450 | 21 | 53.1 | ||
| 1630 | 41.275 | 1-5/8" | 12.7 | 1/2" | 7230 | 4440 | 65 | |||
| 1635 | 3/4" | 44.45 | 1-3/4" | 12.7 | 1/2" | 7230 | 4440 | 85 | ||
| 1638 | 50.8 | 2" | 14.29 | 9/16" | 10780 | 6940 | 120 | |||
| RLS6 | 47.625 | 1-7/8" | 14.29 | 9/16" | 10000 | 6300 | 17 | 110 | ||
| RMS6 | 50.8 | 2" | 17.46 | 11/16" | 12400 | 8500 | 16 | 160 | ||
| R14 | 22.225 | 47.625 | 1-7/8" | 9.53 | 0.3752" | 7750 | 4950 | 18 | 71 | |
| 1640 | 7/8" | 50.8 | 2" | 14.29 | 9/16" | 10780 | 6940 | 110 | ||
| RLS7 | 50.8 | 2" | 14.29 | 9/16" | 12000 | 7600 | 16 | 130 | ||
| RMS7 | 57.15 | 2-1/4" | 17.46 | 11/16" | 14500 | 9300 | 15 | 200 | ||
| R16 | 25.4 | 50.8 | 2" | 9.53 | 0.3752" | 8250 | 5450 | 16 | 85 | |
| 1641 | 1" | 50.8 | 2" | 14.29 | 9/16" | 10780 | 6940 | 100 | ||
| RLS8 | 57.15 | 2-1/4" | 15.88 | 5/8" | 14000 | 970 | 14 | 170 | ||
| RMS8 | 63.5 | 2-1/2" | 19.05 | 3/4" | 18600 | 12400 | 12 | 250 | ||
| R18 | 28.575 | 53.975 | 2-1/8" | 9.53 | 0.3752" | 9600 | 6260 | 15 | 90 | |
| 1652 | 1-1/8" | 63.5 | 2-1/2" | 15.88 | 5/8" | 12280 | 8500 | 210 | ||
| RLS9 | 63.5 | 2-1/2" | 15.88 | 5/8" | 15300 | 10200 | 12.5 | 210 | ||
| RMS9 | 71.438 | 2-13/16" | 20.64 | 13/16" | 18100 | 12300 | 12 | 380 | ||
| R20 | 31.75 | 57.15 | 2-1/4" | 9.53 | 0.3752" | 10800 | 7520 | 14 | 95 | |
| 1654 | 63.5 | 2-1/2" | 15.88 | 5/8" | 12280 | 8500 | 190 | |||
| 1657 | 1-1/4" | 65.088 | 2-9/16" | 17.46 | 11/16" | 14970 | 10000 | 220 | ||
| RLS10 | 69.85 | 2-3/4" | 17.46 | 11/16" | 18300 | 12300 | 11.5 | 280 | ||
| RMS10 | 79.375 | 3-1/8" | 22.23 | 7/8" | 2350 | 1610 | 10.5 | 510 | ||
| 1658 | 33.338 | 1-5/16" | 65.088 | 2-9/16" | 17.46 | 11/16" | 14970 | 10000 | 200 | |
| R22 | 34.925 | 1-3/8" | 63.5 | 2-1/2" | 11.11 | 0.4374" | 12280 | 8500 | 12 | 106 |
| RLS11 | 76.2 | 3" | 17.46 | 11/16" | 20100 | 13900 | 10.5 | 370 | ||
| R24 | 38.1 | 1-1/2" | 66.675 | 2-5/8" | 11.11 | 0.4374" | 16800 | 11400 | 11 | 141 |
| RLS12 | 82.55 | 3-1/4" | 19.05 | 3/4" | 24000 | 17000 | 9.5 | 430 | ||
| (916) 549-9696 Email: info@ortechceramics.com OrTech, Inc. 2543 Sierra Blvd Sacramento CA 95825 |
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