A
Anonymous
Apr 11, 2026
Rating: 4/5
Good Quality
Slight delay in shipping but the product is solid and well machined.
Description
This diaphragm coupling connects motor and driven shafts to transmit torque while compensating for misalignment in servo and stepper motor applications. Constructed from elastic aluminum alloy, it features a single or double diaphragm design that provides zero-backlash performance and absorbs vibration during high-speed rotation. The component is engineered for precise motion control systems requiring rigid yet flexible shaft connection. Ensure shafts are properly aligned within specified tolerances before tightening set screws to maintain optimal balance and longevity.
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Aluminum Alloy |
| Coupling Type | Elastic Diaphragm |
| Bore Diameter | 5mm to 20mm |
| Outer Diameter | 25 mm |
| Overall Length | 30 mm |
| Rated Torque | 5 N.m |
| Maximum Speed | 10,000 RPM |
| Surface Treatment | Anodized Black |
| Operating Temperature | -20°C to 80°C |
| Place of Origin | Dongguan, Guangdong |
5 reviews
A
Anonymous
Apr 01, 2026
Rating: 5/5
Perfect for CNC Project
Fits my stepper motor perfectly. Very rigid and no vibration noticed during operation.
A
Anonymous
Mar 16, 2026
Rating: 4/5
Reliable Coupling
Works as expected for motor drives. Set screws were included which was convenient.
A
Anonymous
Feb 16, 2026
Rating: 5/5
Precise Machining
No runout detected during installation. The aluminum alloy feels durable.
A
Anonymous
Feb 12, 2026
Rating: 5/5
High Performance
Handles high torque without slipping. Exactly what I needed for my servo drive.
5 FAQ
Q: Does the package include set screws?
A: Yes, set screws are included with each coupling in the package.
Q: What is the misalignment tolerance?
A: It supports angular and parallel misalignment within standard industrial limits.
Q: Is this compatible with NEMA 23 motors?
A: Yes, it is compatible if the shaft diameter matches the selected bore size.
Q: Can it handle reverse rotation?
A: Yes, it is designed for bidirectional rotation suitable for servo and stepper applications.
Q: What bore sizes are available for this coupling?
A: We offer sizes from 5mm to 20mm. Please select your specific size at checkout.
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