Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | 304 Stainless Steel |
| Surface Finish | Polished |
| Outer Diameter | 50 mm |
| Overall Length | 80 mm |
| Input Bore Diameter | 10 mm |
| Output Bore Diameter | 8 mm |
| Fixation Type | Dual Set Screws |
| Item Weight | 245 grams |
| Hardness Rating | HRC 28-32 |
| Package Includes | 1 x Coupling Adapter |
Anonymous
Mar 20, 2026
Rating: 4/5
Good but Set Screws Tight
The coupling itself is excellent quality. Only minor issue was the set screws were a bit tight to thread initially, but once loosened they work fine.
Anonymous
Mar 14, 2026
Rating: 5/5
Solid Build Quality
Heavy duty stainless steel that feels like it will last. The set screws hold tight under load. Great value for the price compared to local suppliers.
Anonymous
Mar 10, 2026
Rating: 5/5
Precise Fit for CNC Project
This coupling fit perfectly between my stepper motor and lead screw. The step-down from 10mm to 8mm was exact with no wobble. Very satisfied with the rigidity.
Anonymous
Feb 26, 2026
Rating: 5/5
Great Value
Works great for my motor mount adapter setup. The polished finish looks professional and resists corrosion in my workshop environment.
Anonymous
Feb 21, 2026
Rating: 5/5
Exactly What I Needed
Hard to find this specific bore combination locally. Shipping was fast and the part matches the description perfectly. No runout issues.
Q: Are the set screws included pre-installed?
A: Yes, the dual set screws are pre-installed on the coupling for immediate use.
Q: What is the runout tolerance on the bores?
A: The runout tolerance is less than 0.05mm, ensuring precision alignment for motor shafts.
Q: Can I return this if the bore size is wrong?
A: Yes, unused items can be returned within 30 days of delivery for a full refund.
Q: What is the maximum RPM rating for this coupling?
A: This rigid coupling is rated for speeds up to 4000 RPM depending on shaft balance.
Q: Is this suitable for outdoor use without rusting?
A: Made from 304 Stainless Steel, it offers excellent corrosion resistance for most outdoor applications.
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