Applicationt:
Auto
Production Description:
R4 ball bearing are mainly used for industry of instrument, micro-motor, electric tools, gymastic equipment, telecommunication e
R4inch ball bearing are mainly used for industry of instrument, micro-motor, electric tools, gymastic equipment, telecommunication equipment, medical apparatus & instruments , fishing tackle , model airplane and telecontrolled toys, etc.. It is available in full specifications with reliable performance.
R series deep groove ball bearing technical data:
| NPB | Bore | Outside Diameter | Width |
| Part No. | Frac. | Inch | Frac. | Inch | Open | Seal/Shield |
| RFQ per item | Frac. | Inch | Frac. | Inch |
| R2 | 3.175 | 1/4 | 9.525 | 3/8 | 3.967 | 1/6 | 3.976 | 1/6 |
| R3 | 4.762 | 3/16 | 12.700 | 1/2 | 3.967 | 1/6 | 4.978 | 1/5 |
| R4 | 6.350 | 1/4 | 15.875 | 5/8 | 4.978 | 1/5 | 4.978 | 1/5 |
| R6 | 9.525 | 3/8 | 22.225 | 7/8 | 5.558 | 2/9 | 7.142 | 2/7 |
| R8 | 12.700 | 1/2 | 28.575 | 1 1/8 | 6.350 | 1/4 | 7.938 | 1/3 |
Material: GCr15, equals to Standard SAE 52100(USA),DIN100Cr6(Germany),BS535A99(UK ).
R series bearings are available in open, sealed and shielded configurations. Sealed and shielded bearings may be slightly wider as shown in the table.