Parts Number
Inquiry
Product Information
Designations
7940C
Boundary Dimensions
| d | 200 | mm | Bore diameter |
| D | 280 | mm | Outside diameter |
| B | 38 | mm | Width |
| r(min.) | 2.1 | mm | Chamfer Dimension |
| r1(min.) | 1.1 | mm | Chamfer Dimension |
Basic Load Ratings
| Cr | 238 | kN | Basic Dynamic Load Rating |
| C0r | 244 | kN | Basic Static Load Rating |
Speeds
| Grease | 4400 | min-1 | Limiting Speed |
| Oil (Oil-air) | 6900 | min-1 | Limiting Speed |
Abutment and Fillet Dimensions
| da(min.) | 212 | mm | Diameter of Shaft Abutment |
| Da(max.) | 268 | mm | Diameter of Housing Abutment |
| Db(max.) | 273 | mm | Diameter of Housing Abutment |
| ra(max.) | 2 | mm | Radius of Shaft or Housing Fillet |
| rb(max.) | 1 | mm | Radius of Shaft or Housing Fillet |
Calculation factors
| f0 | 16.5 | Factor |
Others
Performance
| Pa | 144 | kN | Permissible Axial Load |
Preload,Rigidity(DB and DF arrangement)
| Preload | Axial Rigidity | Measured axial clearance | |
| EL | 784N | 183N/μm | -16μm |
| L | 1584N | 244N/μm | -31μm |
| M | 3592N | 351N/μm | -58μm |
| H | 7168N | 492N/μm | -92μm |
Mass
| 5.95 | kg | Mass(approx.) |
