NSK 7228BDB bearings
7228BDB, NSK, Matched angular contact ball bearings
- Measurement system
- Metric
- Bore diameter
- 140.000 mm
- Outside diameter
- 250.000 mm
- Width
- 84.000 mm
- Cr
- 355000 N
- C0r
- 425000 N
- Limiting speed
- 2200 r/min
- Net weight
- 17.88 kg
- Number of rows
- 2
- Contact angle deg
- 40
- Sealing
- Without
- Cage
- Machined brass
- Arrangement
- Matched bearings
- Bearing material
- Steel
- Rolling material
- Steel
- Lubricant in bearing
- None
- Relubrication feature
- Without
In stock
Technical specification for NSK 7228BDB
| Parts Number | 7228BDB | |
|---|---|---|
| Brand | NSK | |
| Arrangement | DB: Back-to-back arrangement | |
| Boundary Dimensions | ||
| d | 140 mm | Bore diameter |
| D | 250 mm | Outside diameter |
| 2B | 84 mm | Width 2B |
| r min. | 3 mm | Chamfer Dimension |
| r1 min. | 1.1 mm | Chamfer Dimension |
| Basic Load Ratings | ||
| Cr | 355000 N | Basic Dynamic Load Rating |
| C0r | 425000 N | Basic Static Load Rating |
| Speeds | ||
| Grease | 1600 min-1 | Grease lubrication |
| Oil | 2200 min-1 | Oil-bath lubrication |
| Dimensions | ||
| a0 | 205.6 mm | Load center spacings |
| Abutment and Fillet Dimensions | ||
| da min. | 154 mm | Diameter of Shaft Abutment |
| rb max. | 1 mm | Radius of fillet |
| Db max. | 243 mm | Diameter of Housing Abutment |
| ra max. | 2.5 mm | Radius of Shaft or Housing Fillet |
| Mass | ||
| Weight | 17.88 kg (approx.) | |
7228BDB, NSK, matched angular contact ball bearings DB Back-to-back arrangement; Bore diameter: 140 mm; Outside diameter 250 mm; Width(2B) 84 mm.
NSK 7228BDB matched angular contact ball bearings can sustain radial loads and axial loads in both directions.
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