A
Anonymous
Feb 14, 2026
Rating: 5/5
Reliable
Running for months now without any issues. Holds torque well and hasn't loosened up.
Description
Jianlan Aluminum Alloy Single/Double Diaphragm Coupling for Servo Motor Leadscrew High Torque Flexible Coupling
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Aluminum Alloy 7075 |
| Coupling Type | Dual Disc Flexible |
| Connection Method | Clamp Style Set Screws |
| Rated Torque | 5.5 Nm |
| Maximum Speed | 5000 RPM |
| Outer Diameter | 25 mm |
| Overall Length | 30 mm |
| Bore Diameter Range | 5 mm to 10 mm |
| Surface Treatment | Black Anodized |
| Common Applications | CNC, Robotics, 3D Printers |
5 reviews
A
Anonymous
Feb 10, 2026
Rating: 5/5
Zero Backlash
Exactly what I needed for my servo motor setup. Smooth operation and no vibration at high speeds.
A
Anonymous
Feb 05, 2026
Rating: 5/5
Solid Build
Very sturdy aluminum construction. The anodizing looks professional and the clamping screws are high quality.
A
Anonymous
Jan 29, 2026
Rating: 4/5
Good but tight
Fit was slightly tight on the 10mm shaft, needed a little polishing. Otherwise works well for the price.
A
Anonymous
Jan 29, 2026
Rating: 5/5
Great Precision
Used this for my CNC router build. The dual disc design handles misalignment perfectly and there is zero backlash.
5 FAQ
Q: Are clamping screws included?
A: Yes, all necessary set screws for installation are included in the package.
Q: What is the maximum misalignment compensation?
A: It supports up to 0.5mm parallel misalignment and 1 degree angular misalignment.
Q: How long does shipping take?
A: Standard shipping typically takes 3 to 5 business days within the continental US.
Q: Does this fit NEMA 23 motors?
A: Yes, provided the motor shaft diameter matches the bore size selected (5mm to 10mm).
Q: Does this require lubrication?
A: The coupling is pre-lubricated at the factory and generally does not require maintenance.
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