The 1203 TN9 is a self-aligning ball bearing supplied by DALUO under our own designation. It is dimensioned to the 17x40x12 mm envelope (bore 17 mm, outer 40 mm, width 12 mm). Each unit is produced to the original mounting and load envelope, so it drops straight into the applications the 1203 TN9 was designed for.
1203 TN9 — dimensions and specifications
| Bearing number | 1203 TN9 |
|---|---|
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 40 mm |
| Width (B) | 12 mm |
| Size (d × D × B) | 17x40x12 mm |
| Bearing type | Self-Aligning Ball Bearing |
| Brand | DALUO |
Why source the 1203 TN9 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 17x40x12 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 1203 TN9 is commonly fitted where a self-aligning 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 1203 TN9 quotation and lead time.
DALUO — bearings and seals engineered to your specification.