Single Row Deep Groove Ball Bearings – R Series (Imperial)
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R Series
Single Row Deep Groove Ball Bearings are widely recognized as the predominant type of rolling bearing, featuring inner and outer ring raceway grooves that form a circular arc with a radius slightly larger than that of the balls.
For detailed item information and additional specifications, click the bearing numbers.
R Series Spec Chart
Boundary Dimensions (in) | Basic Load Ratings (N) | Limiting Speeds (rpm) | Reference |
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Model # | Inner d. | Outer D. | Width | Dynamic | Static | Grease | Oil | Reference |
| R2-5 | 1/8" | 5/16" | 7/64" | 452 | 156 | 52000 | 61000 | View Details |
| R2 | 1/8" | 3/8" | 5/32" | 645 | 229 | 47000 | 56000 | View Details |
| R2A | 1/8" | 1/2" | 11/64" | 775 | 317 | 41000 | 49000 | View Details |
| R156 | 3/16" | 5/16" | 7/64" | 210 | 90 | 47000 | 56000 | View Details |
| R166 | 3/16" | 3/8" | 1/8" | 467 | 191 | 44000 | 53000 | View Details |
| R3 | 3/16" | 1/2" | 5/32" | 1070 | 432 | 39000 | 46000 | View Details |
| R168 | 1/4" | 3/8" | 1/8" | 508 | 94 | 41000 | 49000 | View Details |
| R188 | 1/4" | 1/2" | 1/8" | 716 | 291 | 37000 | 44000 | View Details |
| R4 | 1/4" | 5/8" | 7/32" | 1460 | 599 | 34000 | 41000 | View Details |
| R4A | 1/4" | 3/4" | 7/32" | 2800 | 1050 | 32000 | 38000 | View Details |
| R6 | 3/8" | 7/8" | 7/32" | 3330 | 1410 | 29000 | 35000 | View Details |
| R8 | 1/2" | 1-1/8" | 1/4" | 5110 | 2390 | 24000 | 28000 | View Details |
| R10 | 5/8" | 1-3/8" | 9/32" | 6000 | 3260 | 18000 | 22000 | View Details |
| R12 | 3/4" | 1-5/8" | 5/16" | 9380 | 5080 | 16000 | 19000 | View Details |
| R14 | 7/8" | 1-7/8" | 3/8" | 10070 | 5800 | 13000 | 16000 | View Details |
| R16 | 1" | 2" | 3/8" | 10070 | 5800 | 11000 | 13000 | View Details |
Full Catalogs
