Deep groove ball bearing MR148
The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and a set of cages. Deep groove ball bearing types have single row and double row, and deep groove ball structure is also divided into the sealed and open structure, open type refers to the bearing without a sealing structure, and sealed deep groove ball is divided into dust seal and oil seal. Dustproof sealing cover material for steel plate stamping only plays simple to prevent dust into the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the grease in the bearing from spilling. Its structure is simple and easy to use. It is mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has a certain performance of angular contact ball bearing and can bear the combined diameter and axial load. When the speed is higher and it is not suitable to use thrust ball bearings, it can also be used to bear pure axial load. Compared with other types of bearings of the same size as deep groove ball bearings, the friction coefficient of this kind of bearing is small and the limit speed is high.


| Boundary Dimensions MM | Designation | Load Rating(KN) Dyn. stat | speed ratings(rpm) | r1 r2 (min) | mounting dimensions MM | Mass (KGS) | ||||||
| d | D | B | Cr | Cor | ng grease | ng oil | da min | Da max | ra max | |||
| 8 | 14 | 3.5 | MR148 | 0.82 | 0.385 | 38000 | 45000 | 0.2 | 9.6 | 14.2 | 0.2 | 0.00186 |
| 8 | 14 | 4 | MR148 ZZ | 0.82 | 0.385 | 38000 | 45000 | 0.15 | 9.6 | 14.2 | 0.15 | 0.00216 |
| 8 | 14 | 4 | MR148 2RS | 0.82 | 0.385 | 38000 | 45000 | 0.15 | 9.6 | 14.2 | 0.15 | 0.00216 |
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