55TAC20F
| d | 55 | mm | Bore diameter |
| D | 90 | mm | Outside diameter |
| T | 44 | mm | Inner Ring Width |
| C | 22 | mm | Outer Ring Width |
| r(min.) | 1.1 | mm | Chamfer Dimension |
| r1(min.) | 0.6 | mm | Chamfer Dimension |
| Ca | 31.5 | kN | Basic Dynamic Load Rating |
| C0a | 81.0 | kN | Basic Static Load Rating |
| Grease | 6200 | min-1 | Limiting Speed (EL-Preload) |
| Oil (Oil-air) | 6900 | min-1 | Limiting Speed (EL-Preload) |
| Grease | 5300 | min-1 | Limiting Speed (L-Preload) |
| Oil (Oil-air) | 5900 | min-1 | Limiting Speed (L-Preload) |
| ra(max.) | 1 | mm | Radius of Shaft or Housing Fillet |
| rb(max.) | 0.6 | mm | Radius of Shaft or Housing Fillet |
| da | 69 | mm | Diameter of Shaft Abutment |
| Da | 84 | mm | Diameter of Housing Abutment |
Performance
| Pa | 13.3 | kN | Permissible Axial Load |
Preload,Rigidity(DB and DF arrangement)
| Preload | Axial Rigidity | Measured axial clearance | |
| EL | 580N | 565N/μm | -5μm |
| L | 2485N | 934N/μm | -15μm |
Holes Dimensions
| W | 8 | mm | Oil Groove Width |
| m | 4 | Number of Holes | |
| L | 3 | mm | Notch Width |
| 0.442 | kg | Mass(approx.) |