Inch dimension shaft sizes are extremely common in the North American market. Our Bearing meets this demand with its R series inch size single row deep groove radial ball bearings. Featuring the same high-quality construction as our other single row deep groove ball bearings series, they are manufactured to ISO9001 standards with the inner ring, outer ring and balls processed from vacuum degassed bearing steel. Before assembly, these components are heat treat hardened to produce a durable wear surface on the balls and ball tracks. The ball retainers and shields are produced from cold rolled steel.
The Conrad construction of these bearings enables them to accept thrust as well as radial load. Their ball complement and selection of retainers also allows them to work well in high-speed applications. R series bearings are available in open, sealed and shielded configurations. Sealed and shielded bearings may be slightly wider as shown in the table. This series is also available in stainless steel material.
Additionally, the model R4A refers to the single row small inch size deep groove ball bearing with increased O.D. and width.
Application
The Inch series deep groove ball bearings are used in skateboards, roller skates, wheel bearings, power transmission, lawn & garden, landscape and mobile equipment, fishing reel, miniature slot car and many other industrial applications.
Bearing Model | Dimensions(mm) | Max. Fillet Radius | Balls | Basic Load Rating(N) | Weight(kg) | |||||||||
d | D | B | No. | Diam. | ||||||||||
Frac. | Inch | Tol. | Frac. | Inch | Tol. | Open | Seal/Shield | Dynamic | Static | |||||
R2 | 1/8 | 0.125 | -0.0003 | 3/8 | 0.375 | -0.0004 | 0.1562 | 0.1562 | 0.012 | 7 | 1/16 | 49 | 113 | 0.004 |
R3 | 3/16 | 0.1875 | -0.0003 | 1/2 | 0.5 | -0.0004 | 0.1562 | 0.196 | 0.012 | 7 | 3/32 | 70 | 145 | 0.0045 |
R4 | 1/4 | 0.25 | -0.0003 | 5/8 | 0.625 | -0.0004 | 0.196 | 0.196 | 0.012 | 7 | 1/8 | 195 | 385 | 0.005 |
R6 | 3/8 | 0.375 | -0.0003 | 7/8 | 0.875 | -0.0004 | 0.2188 | 0.2812 | 0.016 | 7 | 5/32 | 305 | 570 | 0.010 |
R8 | 1/2 | 0.5 | -0.0003 | 1-1/8 | 1.125 | -0.0004 | 0.25 | 0.3125 | 0.016 | 8 | 3/16 | 500 | 885 | 0.080 |
R10 | 5/8 | 0.625 | -0.0003 | 1-3/8 | 1.375 | -0.0005 | 0.2812 | 0.3438 | 0.031 | 9 | 3/16 | 565 | 970 | 0.050 |
R12 | 3/4 | 0.75 | -0.0004 | 1-5/8 | 1.625 | -0.0005 | 0.3125 | 0.4375 | 0.031 | 10 | 7/32 | 850 | 1265 | 0.060 |
R14 | 7/8 | 0.875 | -0.0004 | 1-7/8 | 1.875 | -0.0005 | 0.375 | 0.500 | 0.031 | 10 | 1/4 | 1110 | 1735 | 0.040 |
R16 | 1 | 1 | -0.0004 | 2 | 2 | -0.0005 | 0.375 | 0.500 | 0.031 | 10 | 1/4 | 1110 | 1735 | 0.060 |
R18 | 1-1/8 | 1.125 | -0.0004 | 2-1/8 | 2.125 | -0.0005 | 0.375 | 0.500 | 0.031 | 11 | 1/4 | 1225 | 1840 | 0.080 |
R20 | 1-1/4 | 1.25 | -0.0005 | 2-1/4 | 2.25 | -0.0005 | 0.375 | 0.500 | 0.031 | 12 | 1/4 | 1335 | 1920 | 0.100 |
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Deep Groove Ball Bearing Inch R1212 Open Size 12.7 x 19.05 x 3.967 mmInquire
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Deep Groove Ball Bearing Inch R20 ZZ 2RS Size 31.75 x 57.15 x 12.7 mmInquire
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Deep Groove Ball Bearing Inch R20 W9.525 Open Size 31.75 x 57.15 x 9.525 mmInquire
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Deep Groove Ball Bearing Inch R18 ZZ 2RS Size 28.575 x 53.975 x 12.7 mmInquire
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Deep Groove Ball Bearing Inch R18 W9.525 Open Size 28.575 x 53.975 x 9.525 mmInquire
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Deep Groove Ball Bearing Inch R16 ZZ 2RS Size 25.4 x 50.8 x 12.7 mmInquire
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Deep Groove Ball Bearing Inch R16 W9.525 Open Size 25.4 x 50.8 x 9.525 mmInquire
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Deep Groove Ball Bearing Inch R14 ZZ 2RS Size 22.225 x 47.625 x 12.7 mmInquire
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Deep Groove Ball Bearing Inch R14 W9.525 Open Size 22.225 x 47.625 x 9.525 mmInquire
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Deep Groove Ball Bearing Inch R12 ZZ 2RS Size 19.05 x 41.275 x 11.11 mmInquire
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Deep Groove Ball Bearing Inch R12 W7.937 Open Size 19.05 x 41.275 x 7.937 mmInquire
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Deep Groove Ball Bearing Inch R10 ZZ 2RS Size 15.875 x 34.925 x 8.73 mmInquire
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Deep Groove Ball Bearing Inch R10 W7.14 Open Size 15.875 x 34.925 x 7.14 mmInquire
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Deep Groove Ball Bearing Inch R8 ZZ 2RS Size 12.7 x 28.575 x 7.94 mmInquire
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Deep Groove Ball Bearing Inch R8 W6.35 Open Size 12.7 x 28.575 x 6.35 mmInquire
