BOLTTE 45 Steel XL Star Jaw Couplings - Keyway, Clamp, Straight and Split Types
BOLTTE XL-series flexible jaw couplings use black-oxide 45 steel hubs and a polyurethane star elastomer. The listed models cover keyway, clamp, straight and split-clamp hub configurations for motor, pump, compressor and general power-transmission connections.
Configuration range
- Keyway type: XL0 through XL14, with 30-320 mm outer diameters.
- Clamp type: XL1 through XL10, including three XL1 lengths.
- Straight type: XL0 through XL10.
- Split-clamp type: XL1 through XL8.
XL jaw couplings: select the hub style with the model
XL keyway, clamp, straight and split-clamp options are different configurations. Retain the style, XL number, outside diameter, length and bore range in the specification.
| Selection detail | What to check |
|---|---|
| Keyway XL1 / OD 40 x L 66 mm | A listed keyway configuration with an 8–25 mm bore range. |
| Other XL1 styles or lengths | Compare the full drawing instead of assuming every XL1 shares the same envelope. |
| Finished bores and keys | State both hub bores and the required keyway dimensions where applicable. |
Does an XL insert option include the steel hubs?
An insert-only listing is a separate replacement component. Distinguish the complete coupling from a replacement star element before ordering.
Related selection references
Compare the drawings and intended function; these references are not a statement of direct interchangeability.
Ordering notes
- Select the exact model, outer diameter, overall length and bore range shown in the option name.
- State the required finished bore for each hub in the order notes. Confirm whether the two bores are equal or different.
- For keyed bores, state the keyway width, depth and applicable shaft standard. For clamp and split-clamp types, confirm the shaft fit and fastening arrangement.
- Confirm torque, speed, radial and angular misalignment, shaft spacing, operating temperature and service environment before ordering.
All dimensions in the model names are in millimetres. Verify the selected coupling and interface dimensions against the actual equipment before installation.
Product Details and Technical Reference
