Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Coupling Type	Figure-8 (Oldham)
Application	Encoder to Lead Screw Connection
Flexibility	High Elasticity for Misalignment Compensation
Torque Capacity	Medium Duty
Operating Temperature	-20°C to 80°C
Surface Finish	Black Anodized
Mounting Style	Set Screw Clamping
Compatibility	Small DC Motors and Stepper Motors
Package Contents	1x Coupling, 4x Set Screws

6 reviews

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, easy to install

The aluminum feels premium and the set screws held tight under load. Took off one star because the instructions were minimal, but installation was intuitive enough.

Anonymous

Mar 17, 2026

Rating: 5/5

Solved my alignment headache

My motor shaft wasn't perfectly aligned with the encoder, and this flexible connector saved the day. Smooth operation and no noise.

Anonymous

Mar 16, 2026

Rating: 5/5

Excellent flexibility

I needed something with good elasticity to absorb shock loads, and this Bojia coupling delivers. No backlash detected after two weeks of continuous running.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect fit for my CNC project

This figure-8 coupling worked exactly as described. It handled the slight misalignment between my motor and lead screw without any vibration issues. Very sturdy construction.

Anonymous

Mar 11, 2026

Rating: 5/5

Great value for money

Compared to other brands, this offers similar performance at a better price point. The black finish looks professional on my custom build.

Anonymous

Mar 06, 2026

Rating: 4/5

Reliable for precision equipment

Using this on a laboratory positioning stage. It maintains accuracy well. Just ensure you torque the screws evenly to avoid wobble.

5 FAQ

Q: Can this be used for high-speed applications over 3000 RPM?

A: While durable, this figure-8 coupling is best suited for low to medium speed applications. For speeds exceeding 3000 RPM, we recommend checking our rigid or bellows coupling series.

Q: Does it come with an Allen key for installation?

A: The package includes the necessary set screws, but an Allen key is not included. You will need a standard metric hex key matching the screw size.

Q: What is the maximum bore size this coupling supports?

A: This specific model typically supports bore sizes ranging from 4mm to 10mm. Please check the specific variant selection on the product page for exact dimensions.

Q: Is this coupling suitable for outdoor use in rain?

A: The aluminum alloy has an anodized finish which offers some corrosion resistance, but it is not waterproof. We recommend using it in enclosed or indoor environments.

Q: How much angular misalignment can it compensate for?

A: The Figure-8 design allows for approximately 1 to 2 degrees of angular misalignment and minor parallel offset, making it ideal for imperfect shaft alignments.

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