Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Pure Copper |
| Inner Diameter | 2.3 mm / 3.17 mm |
| Outer Diameter | 5.0 mm |
| Length | 10 mm |
| Color | Copper Gold |
| Weight | 2 grams per piece |
| Surface Finish | Polished |
| Compatibility | DC Motor Shafts, Drill Chucks |
| Package Quantity | 5 Pieces |
| Brand | Jiangge |
Anonymous
Apr 02, 2026
Rating: 4/5
Good Value for Money
Solid construction. I used them for a DIY drill modification. One piece was slightly tight but worked out after polishing.
Anonymous
Mar 30, 2026
Rating: 5/5
Fast Delivery
Item arrived well packaged. The copper sleeves are exactly as described in the listing. Will buy again.
Anonymous
Mar 25, 2026
Rating: 5/5
Excellent Quality
Very smooth surface finish. No burrs on the edges. Highly recommend for hobbyist motor connections.
Anonymous
Feb 02, 2026
Rating: 3/5
Check Your Measurements
Make sure you measure your shaft precisely. The 2.3 mm size is quite specific. Works fine once you have the right match.
Anonymous
Feb 01, 2026
Rating: 5/5
Perfect Fit for My Project
These sleeves fit perfectly on my 3.17 mm motor shafts. The copper quality is excellent and they are easy to install.
Q: Are these sold individually or in a pack?
A: These are sold in a pack of 5 pieces as indicated in the package quantity attribute.
Q: Will this fit a standard 3 mm motor shaft?
A: No, this sleeve is designed specifically for 2.3 mm or 3.17 mm shafts. It may be loose on a 3 mm shaft.
Q: What is the wall thickness of the sleeve?
A: The wall thickness is approximately 1.5 mm depending on the inner diameter selected.
Q: Can these handle high RPM applications?
A: They are suitable for standard hobby motor speeds. For industrial high-speed applications, please consult technical specs.
Q: Is the copper soft enough to solder?
A: Yes, the material is pure copper and can be soldered with standard electronics soldering equipment.
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