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31311/DF
| Part Number | 31311/DF |
| System of Measurement | Metric |
| Type | Bearing |
| Bearing Type | Roller |
| Roller Bearing Type | Tapered Roller |
| For Load Direction | Combined |
| Construction | Matched |
| Seal Type | Open |
| Cups Type | Standard |
| Bore Dia | 55 mm |
| Bore Dia Tolerance | -0.015mm to 0 |
| Outer Dia | 120 mm |
| Outer Dia Tolerance | -0.018mm to 0 |
| Total Width | 63 mm |
| Total Width Tolerance | +0.2mm to -0.2mm |
| Width Of Inner Rings | 58 mm |
| Width Of Inner Rings Tolerance | -0.15mm to 0 |
| Width Of Lubrication Groove | 10 mm |
| Diameter Of Lubrication Hole | 7.5 mm |
| Chamfer Dimension Inner Ring | min.0.6 mm |
| Chamfer Dimension Outer Ring | min.2 mm |
| Ring Material | Chrome Steel |
| Roller Material | Chrome Steel |
| Cage Material | Steel |
| Abutment Diameter Shaft | 68 mm |
| Abutment Diameter Housing | 68 mm |
| Radius Of Fillet | max.2.5 mm |
| Reference Speed | 3400 r/min |
| Limiting Speed | 5600 r/min |
| Dynamic Radial Load | 57600 lbf |
| Static Radial Load | 61875 lbf |
| Fatigue Load Limit | 7537.5 lbf |
| Lubrication | Required |
| Temperature Range | -30° to 110 °C |
| ABEC Rating | ABEC-1 |
| Radial Clearance | Standard (Available in C3/C4/C5) |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 7.17 lb |
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