R Series Ball Bearing
Inch Dimension
The R series, single row, radial, inch dimension ball bearings are available from 1/8 inch bore through 1- 1/2 inch bore size. The radial deep groove construction of the R series enables these bearings to take thrust as well as radial load. The ball complement design and selected retainers permit use of this series in high speed motor applications. R series bearings are produced open, shielded or sealed. Bearings with closures are slightly wider as noted in the dimensional table below (with the exception of bearing numbers R 2, R 2A and R 4). This series is also available in 440C stainless steel.
R Series Product Table
B |
D |
W |
W |
R |
|
BEARING NUMBER |
BORE DIAMETER INCHES |
OUTER DIAMETER INCHES |
WIDTH-OPEN INCHES |
WIDTH-CLOSURE INCHES |
FILLET RADIUS INCHES |
R 2 |
.1250 |
.3750 |
.1562 |
.1562 |
.012 |
R 2A |
.1250 |
.5000 |
.1719 |
.1719 |
.012 |
R 3 |
.1875 |
.5000 |
.1562 |
.1960 |
.012 |
R 4 |
.2500 |
.6250 |
.1960 |
.1960 |
.012 |
R 4A |
.2500 |
.7500 |
.2188 |
.2812 |
.016 |
R 6 |
.3750 |
.8750 |
.2188 |
.2812 |
.016 |
R 8 |
.5000 |
1.1250 |
.2500 |
.3125 |
.016 |
R10 |
.6250 |
1.3750 |
.2812 |
.3438 |
.031 |
R12 |
.7500 |
1.6250 |
.3158 |
.4375 |
.031 |
R14 |
.8750 |
1.8750 |
.3750 |
.5000 |
.031 |
R16 |
1.0000 |
2.0000 |
.3750 |
.5000 |
.031 |
R18 |
1.1250 |
2.1250 |
.3750 |
.5000 |
.031 |
R20 |
1.2500 |
2.2500 |
.3750 |
.5000 |
.031 |
R24 |
1.5000 |
2.6250 |
.4375 |
.5625 |
.039 |