54 products
The FR Series consists of high-precision miniature ball bearings designed with an imperial (inch) dimensional standard and an integrated outer ring flange. This flange facilitates easy mounting and precise axial positioning within a housing, eliminating the need for complex machining of internal shoulders. Manufactured from premium chrome steel, these bearings are ideal for encoders, small gearboxes, and precision instruments where imperial sizing is a requirement.
| Part Number | Bore diameter | Outside diameter | Width | Flange outer diameter | Flange thickness | For load direction | Seal type | Ring material | Ball material | Radial dynamic load rating | Radial static load rating | Limiting speed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FR0 | 0.046875" | 0.15625" | 0.0625" | 0.203" | 0.013" | Radial | Open | Chrome Steel | Chrome Steel | 21 lbf | 6 lbf | 110 X 1000 rpm |
| FR0zz | 0.046875" | 0.15625" | 0.0937" | 0.203" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 21 lbf | 6 lbf | 110 X 1000 rpm |
| FR1 | 0.05556" | 0.1875" | 0.0781" | 0.234" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 44 lbf | 12 lbf | 90 X 1000 rpm |
| FR1zz | 0.05556" | 0.1875" | 0.1094" | 0.234" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 44 lbf | 12 lbf | 90 X 1000 rpm |
| FR1-4 | 0.07813" | 0.25" | 0.0937" | 0.296" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR1-4 2rs | 0.07813" | 0.25" | 0.1406" | 0.296" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR1-4zz | 0.07813" | 0.25" | 0.1406" | 0.296" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR133 | 0.09375" | 0.1875" | 0.0625" | 0.234" | 0.018" | Radial | Open | Chrome Steel | Chrome Steel | 36 lbf | 11 lbf | 80 X 1000 rpm |
| FR133 2rs | 0.09375" | 0.1875" | 0.0937" | 0.234" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 28 lbf | 10 lbf | 80 X 1000 rpm |
| FR133zz | 0.09375" | 0.1875" | 0.0937" | 0.234" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 28 lbf | 10 lbf | 80 X 1000 rpm |
| FR1-5 | 0.09375" | 0.3125" | 0.1094" | 0.359" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 106 lbf | 32 lbf | 60 X 1000 rpm |
| FR1-5 2rs | 0.09375" | 0.3125" | 0.1406" | 0.359" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 106 lbf | 32 lbf | 60 X 1000 rpm |
| FR1-5zz | 0.09375" | 0.3125" | 0.1406" | 0.359" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 106 lbf | 32 lbf | 60 X 1000 rpm |
| FR144 | 0.125" | 0.25" | 0.0937" | 0.296" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR144 2rs | 0.125" | 0.25" | 0.1094" | 0.296" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR144zz | 0.125" | 0.25" | 0.1094" | 0.296" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 54 lbf | 17 lbf | 67 X 1000 rpm |
| FR2-5 | 0.125" | 0.3125" | 0.1094" | 0.359" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 107 lbf | 32 lbf | 60 X 1000 rpm |
| FR2-5 2rs | 0.125" | 0.3125" | 0.1406" | 0.359" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 107 lbf | 32 lbf | 60 X 1000 rpm |
| FR2-5zz | 0.125" | 0.3125" | 0.1406" | 0.359" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 107 lbf | 32 lbf | 60 X 1000 rpm |
| FR2-6 | 0.125" | 0.375" | 0.1094" | 0.422" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 122 lbf | 41 lbf | 53 X 1000 rpm |
| FR2-6 2rs | 0.125" | 0.375" | 0.1406" | 0.422" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 122 lbf | 41 lbf | 53 X 1000 rpm |
| FR2-6zz | 0.125" | 0.375" | 0.1406" | 0.422" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 122 lbf | 41 lbf | 53 X 1000 rpm |
| FR2 | 0.125" | 0.375" | 0.1562" | 0.44" | 0.03" | Radial | Open | Chrome Steel | Chrome Steel | 121 lbf | 39 lbf | 56 X 1000 rpm |
| FR2 2rs | 0.125" | 0.375" | 0.1562" | 0.44" | 0.03" | Radial | Sealed | Chrome Steel | Chrome Steel | 121 lbf | 39 lbf | 56 X 1000 rpm |
| FR2zz | 0.125" | 0.375" | 0.1562" | 0.44" | 0.03" | Radial | Shielded | Chrome Steel | Chrome Steel | 121 lbf | 39 lbf | 56 X 1000 rpm |
| FR155 | 0.15625" | 0.3125" | 0.1094" | 0.359" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR155 2rs | 0.15625" | 0.3125" | 0.125" | 0.359" | 0.036" | Radial | Sealed | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR155zz | 0.15625" | 0.3125" | 0.125" | 0.359" | 0.036" | Radial | Shielded | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR156 | 0.1875" | 0.3125" | 0.1094" | 0.359" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR156 2rs | 0.1875" | 0.3125" | 0.125" | 0.359" | 0.036" | Radial | Sealed | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR156zz | 0.1875" | 0.3125" | 0.125" | 0.359" | 0.036" | Radial | Shielded | Chrome Steel | Chrome Steel | 69 lbf | 27 lbf | 53 X 1000 rpm |
| FR166 | 0.1875" | 0.375" | 0.125" | 0.422" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 136 lbf | 49 lbf | 50 X 1000 rpm |
| FR166 2rs | 0.1875" | 0.375" | 0.125" | 0.422" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 136 lbf | 49 lbf | 50 X 1000 rpm |
| FR166zz | 0.1875" | 0.375" | 0.125" | 0.422" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 136 lbf | 49 lbf | 50 X 1000 rpm |
| FR3 | 0.1875" | 0.5" | 0.156" | 0.565" | 0.042" | Radial | Open | Chrome Steel | Chrome Steel | 249 lbf | 88 lbf | 43 X 1000 rpm |
| FR3 2rs | 0.1875" | 0.5" | 0.196" | 0.565" | 0.042" | Radial | Sealed | Chrome Steel | Chrome Steel | 249 lbf | 88 lbf | 43 X 1000 rpm |
| FR3zz | 0.1875" | 0.5" | 0.196" | 0.565" | 0.042" | Radial | Shielded | Chrome Steel | Chrome Steel | 249 lbf | 88 lbf | 43 X 1000 rpm |
| FR168 | 0.25" | 0.375" | 0.125" | 0.422" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 71 lbf | 31 lbf | 48 X 1000 rpm |
| FR168 2rs | 0.25" | 0.375" | 0.125" | 0.422" | 0.036" | Radial | Sealed | Chrome Steel | Chrome Steel | 71 lbf | 31 lbf | 48 X 1000 rpm |
| FR168zz | 0.25" | 0.375" | 0.125" | 0.422" | 0.036" | Radial | Shielded | Chrome Steel | Chrome Steel | 71 lbf | 31 lbf | 48 X 1000 rpm |
| FR188 | 0.25" | 0.5" | 0.125" | 0.547" | 0.023" | Radial | Open | Chrome Steel | Chrome Steel | 344 lbf | 80 lbf | 40 X 1000 rpm |
| FR188 2rs | 0.25" | 0.5" | 0.1875" | 0.547" | 0.045" | Radial | Sealed | Chrome Steel | Chrome Steel | 344 lbf | 80 lbf | 40 X 1000 rpm |
| FR188zz | 0.25" | 0.5" | 0.1875" | 0.547" | 0.045" | Radial | Shielded | Chrome Steel | Chrome Steel | 344 lbf | 80 lbf | 40 X 1000 rpm |
| FR4 | 0.25" | 0.625" | 0.196" | 0.69" | 0.042" | Radial | Open | Chrome Steel | Chrome Steel | 283 lbf | 112 lbf | 38 X 1000 rpm |
| FR4 2rs | 0.25" | 0.625" | 0.196" | 0.69" | 0.042" | Radial | Sealed | Chrome Steel | Chrome Steel | 283 lbf | 112 lbf | 38 X 1000 rpm |
| FR4zz | 0.25" | 0.625" | 0.196" | 0.69" | 0.042" | Radial | Shielded | Chrome Steel | Chrome Steel | 283 lbf | 112 lbf | 38 X 1000 rpm |
| FR1810 | 0.3125" | 0.5" | 0.1562" | 0.547" | 0.031" | Radial | Open | Chrome Steel | Chrome Steel | 104 lbf | 50 lbf | 40 X 1000 rpm |
| FR1810 2rs | 0.3125" | 0.5" | 0.1562" | 0.547" | 0.031" | Radial | Sealed | Chrome Steel | Chrome Steel | 104 lbf | 50 lbf | 40 X 1000 rpm |
| FR1810zz | 0.3125" | 0.5" | 0.1562" | 0.547" | 0.031" | Radial | Shielded | Chrome Steel | Chrome Steel | 104 lbf | 50 lbf | 40 X 1000 rpm |
| FR6 | 0.375" | 0.875" | 0.2188" | 0.965" | 0.062" | Radial | Open | Chrome Steel | Chrome Steel | 638 lbf | 256 lbf | 32 X 1000 rpm |
| FR6 2rs | 0.375" | 0.875" | 0.2812" | 0.965" | 0.062" | Radial | Sealed | Chrome Steel | Chrome Steel | 638 lbf | 256 lbf | 32 X 1000 rpm |
| FR6zz | 0.375" | 0.875" | 0.2812" | 0.965" | 0.062" | Radial | Shielded | Chrome Steel | Chrome Steel | 638 lbf | 256 lbf | 32 X 1000 rpm |
| FR8zz | 0.5" | 1.125" | 0.3125" | 1.225" | 0.062" | Radial | Shielded | Chrome Steel | Chrome Steel | 1149 lbf | 543 lbf | 32 X 1000 rpm |
| FR10zz | 0.625" | 1.375" | 0.3438" | 1.5" | 0.069" | Radial | Shielded | Chrome Steel | Chrome Steel | 1347 lbf | 740 lbf | 25 X 1000 rpm |
