Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy & Stainless Steel Spring
Coupling Type	Bellows (Elastic)
Torque Capacity	High Torque Transmission
Shaft Compatibility	Stepper and Servo Motors
Keyway Option	Available with Optional Keyway
Misalignment Compensation	Angular, Parallel, and Axial
Backlash	Zero Backlash Design
Operating Temperature	-20°C to +80°C
Finish	Anodized Aluminum Hubs
Application	CNC Machinery, Robotics, Automation

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Great value for industrial use

We bought ten units for our automation line. They have been running 24/7 for three months with no signs of wear. Highly recommend for industrial settings.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for my CNC router upgrade

Installed these on my stepper motors and the difference in precision is noticeable. The bellows design absorbs minor misalignments perfectly without losing torque.

Anonymous

Mar 18, 2026

Rating: 5/5

Zero backlash as advertised

Critical for my servo application where positioning accuracy is paramount. These couplings deliver zero backlash and handle high speeds without vibration.

Anonymous

Mar 16, 2026

Rating: 5/5

Exceeded expectations

Replaced old rubber couplings with these CPBC bellows types. The system runs smoother and quieter. The optional keyway feature was exactly what I needed for my specific motor shaft.

Anonymous

Mar 10, 2026

Rating: 4/5

Solid build quality

Very robust construction. The aluminum hubs are well-machined. I opted for the keyway version which fit my shafts securely. Only minor issue was shipping took a bit longer than expected.

Anonymous

Mar 09, 2026

Rating: 4/5

Good flexibility

The spring element provides excellent flexibility for angular misalignment. Installation was straightforward with the provided set screws. Would buy again.

5 FAQ

Q: Is this compatible with NEMA 23 motors?

A: Yes, provided you select the bore size that matches your NEMA 23 motor shaft diameter. We carry various bore sizes to fit standard NEMA mounts.

Q: Can I order this without the keyway option?

A: Absolutely. We offer both keyed and keyless versions. Please select your preference from the dropdown menu before adding to cart.

Q: How do I clean the bellows if they get dirty?

A: Simply wipe the stainless steel bellows with a soft, dry cloth. Avoid using harsh chemicals or solvents that could degrade the metal finish.

Q: Does this coupling come with set screws included?

A: Yes, each unit comes pre-installed with high-grade stainless steel set screws suitable for both smooth and keyed shafts.

Q: What is the maximum RPM rating for this model?

A: This specific bellows coupling is rated for up to 4,000 RPM, making it ideal for most stepper and servo motor applications.

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