A
Anonymous
Mar 03, 2026
Rating: 5/5
Perfect Fit
Measured my shafts carefully and this fit perfectly. The expansion sleeve grips tight.
Description
45 Steel DJM Coupling Single and Double Diaphragm Clamping with Expansion Sleeve Stainless Steel High-Torque Motor Coupling
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | 45# Steel / Stainless Steel |
| Coupling Type | Diaphragm Clamp-Type |
| Structure | Single/Double Diaphragm |
| Connection Method | Expansion Sleeve |
| Shaft Bore Range | 5mm to 50mm |
| Outer Diameter | 30mm to 100mm |
| Overall Length | 40mm to 150mm |
| Rated Torque | 5Nm to 500Nm |
| Max Speed | 10,000 Rev/Min |
| Surface Finish | Black Oxide / Polished |
5 reviews
A
Anonymous
Feb 18, 2026
Rating: 5/5
High Torque Performance
Running this on a high-load application. No slippage observed after weeks of testing.
A
Anonymous
Feb 03, 2026
Rating: 4/5
Good value
Works as expected. The steel feels solid. Took a bit longer to ship than anticipated.
A
Anonymous
Feb 02, 2026
Rating: 4/5
Solid Component
Good industrial grade coupling. Instructions could be more detailed but generally straightforward.
A
Anonymous
Feb 02, 2026
Rating: 5/5
Excellent Build Quality
Used this for a CNC spindle motor. The clamp type makes installation very easy without needing keys. Holds torque well.
5 FAQ
Q: Does this require lubrication?
A: No, the diaphragm design is maintenance-free and does not require lubrication.
Q: Can it handle angular misalignment?
A: Yes, single diaphragm handles angular, while double diaphragm handles parallel misalignment as well.
Q: Do you offer custom bore sizes?
A: Please contact support directly for custom machining requests and availability.
Q: What is the recommended shaft tolerance?
A: We recommend h7 tolerance for optimal performance and grip.
Q: Is the expansion sleeve reusable?
A: Yes, the expansion sleeve is reusable unless it was damaged during removal.
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