The 5311N is a angular contact ball bearing supplied by DALUO under our own designation. It is dimensioned to the 55x120x49.2 mm envelope (bore 55 mm, outer 120 mm, width 49.2 mm). Each unit is produced to the original mounting and load envelope, so it drops straight into the applications the 5311N was designed for.
5311N — dimensions and specifications
| Bearing number | 5311N |
|---|---|
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 120 mm |
| Width (B) | 49.2 mm |
| Size (d × D × B) | 55x120x49.2 mm |
| Bearing type | Angular Contact Ball Bearing |
| Brand | DALUO |
Why source the 5311N from DALUO
- Factory-direct supply. DALUO is a bearing and seal manufacturer with our own production and inspection lines, so you buy without middlemen.
- Dimensional traceability. Bore, outer diameter and width are verified against the 55x120x49.2 mm specification before packing.
- Flexible order size. Sample quantities for validation, and bulk volumes for production programmes.
- Consistent re-orders. The same designation arrives with the same tolerances, order after order.
Applications
The 5311N is commonly fitted where a angular contact ball bearing has to carry combined radial and axial load in a compact space: gearboxes, pumps, motors, conveyors, agricultural machinery and general industrial drives. If you are replacing an existing unit, confirm the shaft and housing fits from the table above.
Request a quotation
Send us your required quantity, preferred clearance and any special requirements such as sealing or lubrication, and our engineering team will come back with a 5311N quotation and lead time.
DALUO — bearings and seals engineered to your specification.