Aluminum Flexible Shaft Coupler 6.35mm to 8mm
Brand: China3D Printer & CNC Parts
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Prices updated: 13 Oct 2026
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About this product
A machined aluminum helical flexible shaft coupler that joins a 6.35 mm shaft to an 8 mm shaft. Its spiral cut lets it tolerate slight misalignment, and it is used to connect motor shafts to other rotating parts in 3D printers and CNC machines.
Specifications
- Bore A
- 6.35 mm
- Bore B
- 8 mm
- Material
- Machined aluminum
- Type
- Helical flexible (spiral cut)
- Clamping
- Set screws, two per side
- Tool required
- 2 mm Allen key
Frequently asked questions
Can it compensate for shaft misalignment?
Yes. The spiral cut makes it flexible along the linear axes, so it can join shafts that are not perfectly in line. It does not add flex in rotation, so backlash is not increased.
What size Allen key do I need?
A 2 mm Allen wrench is needed to tighten and loosen the set screws, as stated in the product description.
