BOLTTE 45 Steel Single & Double Disc Diaphragm Couplings
BOLTTE 45 steel disc couplings connect motor and driven shafts in servo, ball-screw and machine transmission assemblies. The series includes single- and double-disc configurations with clamp, set-screw and locking-assembly hubs.
Configuration guide
- Single-disc configurations: HJSG, HJNST, HJNT and HJSZ.
- Double-disc configurations: HJLG, HJNLT, HJMT and HJLZ.
- Outer diameter, overall length and available bore range are shown in the configuration selector.
- Both hubs and the coupling body are specified as 45 steel in the source product data.
45 steel disc couplings: compare series and fastening
HJSG, HJNST, HJNT and HJSZ are single-disc families in this listing; HJLG, HJNLT, HJMT and HJLZ are double-disc families. The prefix does not replace the full dimensional specification.
| Selection detail | What to check |
|---|---|
| Disc arrangement | Choose the listed single- or double-disc construction for the installation. |
| Clamp, set-screw or locking hub | Confirm the shaft interface, required fit and fastener access. |
| Outside diameter and length | Check both dimensions and specify the finished bore on each shaft end. |
Can two couplings of equal outside diameter be substituted?
Not without checking length, hub style, bore limits and operating ratings. Verify shaft spacing and the complete selected drawing before installation.
Related selection references
Compare the drawings and intended function; these references are not a statement of direct interchangeability.
Ordering and installation
- Select the required hub type, outer diameter, length and bore range.
- State the finished bore dimensions for both shafts in the order requirements.
- Confirm shaft tolerances, keyway or clamping requirements, installation clearance and fastener access before ordering.
- Accurate shaft alignment is important. Verify torque, speed and permitted axial, angular and parallel misalignment for the application before use.
