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Home / Couplings / Aluminum Alloy Jaw Coupling D25L30 for Stepper Servo Motor Lead Screw Connector 5/6/8/10/12mm

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material Aluminum Alloy
Outer Diameter 25mm
Total Length 30mm
Shaft Bore Options 5mm, 6mm, 8mm, 10mm, 12mm
Coupling Type Jaw (Spider) Coupling
Application Stepper/Servo Motor to Lead Screw
Torque Capacity High Precision Transmission
Flexibility Compensates for Minor Misalignment
Finish Anodized Black
Package Includes 1 x Jaw Coupling Set

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 5/5

Industrial grade quality

Better than expected for the cost. The anodizing is even and the dimensions match the spec sheet exactly. Will buy again for future projects.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Exactly what I needed

Simple, effective, and robust. Connected my servo motor to the lead screw with zero issues. Highly recommend for hobbyist CNC machines.

A

Anonymous

Mar 13, 2026

Rating: 4/5

Good quality, fast shipping

Solid aluminum construction. I ordered the 8mm to 10mm version and it fits my NEMA 23 motor perfectly. Slight cosmetic scratch but doesn't affect performance.

A

Anonymous

Mar 11, 2026

Rating: 3/5

Decent but set screws could be better

The coupling itself is great, but the included set screws felt a bit soft. I replaced them with high-grade alloy screws just to be safe.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Sturdy and reliable

Using this on a 3D printer Z-axis upgrade. No wobble and handles the torque well. The spider insert provides good vibration damping.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect fit for my CNC build

The machining quality is excellent. The bores are precise and the set screws hold tight without stripping. Great value for the price.

5 FAQ

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

A: While dependent on balance and application, these couplings are generally suitable for speeds up to 4000 RPM in standard automation tasks.

Q: Does this come with the rubber spider insert?

A: Yes, the package includes the aluminum jaws and the necessary polyurethane spider insert.

Q: Is this suitable for high-temperature environments?

A: The aluminum alloy handles heat well, but the rubber spider insert has a temperature limit. Please check the specific material datasheet for extreme conditions.

Q: Are the set screws metric or imperial?

A: The set screws provided are metric, matching the standard bore specifications of the coupling.

Q: Can this handle a 12mm shaft on one side and 8mm on the other?

A: You must select the specific bore combination at checkout. This listing offers various sizes, but each unit comes with fixed bores as selected.

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