6311 Bearing Series
Deep groove ball bearing — multiple seal variants available
Common Dimensions
Bore (d)
55 mm
Outer Diameter (D)
120 mm
Width (B)
29 mm
Dimension series follows ISO 15 / DIN 625. Values are taken from the factory's parameter table.
Available Variants
| Model | Seal Type | d×D×B | Grease Speed | Oil Speed | Action |
|---|---|---|---|---|---|
| 63112RS | 2RS | 55×120×29 | 4,000 rpm | — | View Details → |
| 6311ZZ | ZZ | 55×120×29 | 5,600 rpm | — | View Details → |
| 6311RS | RS | 55×120×29 | 4,000 rpm | 6,700 rpm | View Details → |
| 6311RZ | RZ | 55×120×29 | 5,600 rpm | 6,700 rpm | View Details → |
| 63112RZ | 2RZ | 55×120×29 | 5,600 rpm | — | View Details → |
| 6311open | Open | 55×120×29 | 5,600 rpm | 6,700 rpm | View Details → |
| 6311Z | Z | 55×120×29 | 5,600 rpm | 6,700 rpm | View Details → |
Related specifications notes
Typical Applications
- Electric motors and generators
- Water pumps and fluid handling systems
- Agricultural machinery
- Home appliances
- General industrial applications
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