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On many occasions, FAG bearing bore size has been structured by a specific machine or device defined. Whether working life, static load safety factor and whether the economy will meet the requirements, the rest in the final selection of FAG Bearings size and structure, to have been size calculations. The calculus includes FAG Bearings actual load is compared with its load capacity.
Static load bearing FAG bearings is loaded is stationary (no relative motion between the inner and outer rings) or rotation speed is very low. In this case, the calculation and the raceways and rolling elements of the safety factor of excessive plastic deformation.
Most FAG Bearings by dynamic load, inner and outer rings relative motion made, dimensions calculus checking raceways and rolling early fatigue damage safety factor.
Only in exceptional circumstances when it is based on the working life can actually be achieved nominal life doing calculus. Focus on economic performance on the designs, to the fullest possible use of FAG bearing capacity. To more fully utilized FAG bearings, FAG bearing size then the calculation accuracy of the more important it is optional.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7309ADB NSK | 45 | 100 | 25 |
| 7209CDB NSK | 45 | 85 | 19 |