Parts Number
Inquiry
Product Information
Designations
7911A5
Boundary Dimensions
| d | 55 | mm | Bore diameter |
| D | 80 | mm | Outside diameter |
| B | 13 | mm | Width |
| r(min.) | 1 | mm | Chamfer Dimension |
| r1(min.) | 0.6 | mm | Chamfer Dimension |
Basic Load Ratings
| Cr | 22.8 | kN | Basic Dynamic Load Rating |
| C0r | 16.8 | kN | Basic Static Load Rating |
Speeds
| Grease | 14900 | min-1 | Limiting Speed |
| Oil (Oil-air) | 22300 | min-1 | Limiting Speed |
Abutment and Fillet Dimensions
| da(min.) | 61 | mm | Diameter of Shaft Abutment |
| Da(max.) | 74 | mm | Diameter of Housing Abutment |
| Db(max.) | 75 | mm | Diameter of Housing Abutment |
| ra(max.) | 1 | mm | Radius of Shaft or Housing Fillet |
| rb(max.) | 0.5 | mm | Radius of Shaft or Housing Fillet |
Others
Performance
| Pa | 12.5 | kN | Permissible Axial Load |
Preload,Rigidity(DB and DF arrangement)
| Preload | Axial Rigidity | Measured axial clearance | |
| EL | 99N | 113N/μm | -2μm |
| L | 196N | 144N/μm | -5μm |
| M | 454N | 198N/μm | -11μm |
| H | 917N | 264N/μm | -19μm |
Mass
| 0.184 | kg | Mass(approx.) |
