NTN 51256 bearings
51256, NTN single direction thrust ball bearing
- Measurement system
- Metric
- Bore diameter
- 280.000 mm
- Outside diameter
- 380.000 mm
- Height
- 80.000 mm
- Ca
- 460000 N
- C0a
- 1970000 N
- Limiting speed
- 730 r/min
- Net weight
- 26.10 kg
- Number of rows
- 1
- Cage
- Machined brass
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
In stock
Technical specification for NTN 51256
| Part Number | 51256 |
|---|---|
| Mass | 26.10 kg, approx. |
| Boundary Dimensions | |
| Bore dia. d | 280 mm |
| Outside dia. D | 380 mm |
| Height T | 80 mm |
| Chamfer rmin | 2.1 mm |
| Basic Load Ratings | |
| Dynamic Ca | 460 kN |
| Static C0a | 1970 kN |
| Fatigue load limit | |
| Cu | 49 kN |
| Limiting Speeds | |
| Oil | 730 min-1 |
| Grease | 510 min-1 |
| Dimensions | |
| d1 max | 375 mm |
| D1 min | 284 mm |
| t | 25.4 mm |
| Abutment and fillet dimensions | |
| da min | 339 mm |
| Da max | 321 mm |
| ra max | 2 mm |
NTN 51256 single direction thrust ball bearing is designed primarily to support axial loads in one direction.
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