Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Cast Iron
Coupling Type	Three-Jaw Elastic Star
Available Sizes	90mm, 105mm, 120mm
Bore Shape	Hexagonal
Application	Motor to Water Pump Connection
Configuration	Back-to-Back Wheel Design
Flexibility	Elastic Star Insert
Surface Finish	Black Oxide Coated
Torque Capacity	High Torque Transmission
Compatibility	Standard Industrial Motors

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Robust construction

Very impressed with the thickness of the jaws and the quality of the casting. No defects found upon arrival. The 120mm version handles high torque applications with ease.

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect fit for my pump setup

Ordered the 105mm size for a replacement on an old water pump. The cast iron feels very sturdy and the hex bore matched my motor shaft perfectly. Installation was straightforward.

Anonymous

Mar 14, 2026

Rating: 5/5

Reliable replacement part

Bought this to replace a worn-out coupling on a garden irrigation pump. It runs smoother now with less noise. The elastic insert absorbs shocks well.

Anonymous

Mar 11, 2026

Rating: 5/5

Solved our alignment issues

We use these for connecting motors to pumps in our facility. The back-to-back design helps with minor misalignments without causing excessive wear. Highly recommend for industrial use.

Anonymous

Mar 04, 2026

Rating: 4/5

Good quality, heavy duty

The build quality is excellent. It is quite heavy which gives me confidence in its durability. The elastic star provides good vibration dampening. Took off one star because shipping took a bit longer than expected.

Anonymous

Mar 04, 2026

Rating: 4/5

Great value for money

Compared to local suppliers, this is a great deal. The material is genuine cast iron as described. Just make sure to measure your shaft diameter carefully before ordering.

5 FAQ

Q: Are replacement elastic stars available separately?

A: Yes, we sell replacement elastic star inserts separately. Please select the size matching your coupling (90, 105, or 120) from our accessories section.

Q: Can I use this for a vertical shaft application?

A: Yes, the three-jaw design works effectively for both horizontal and vertical shaft orientations provided the shafts are properly supported.

Q: Is the bore keywayed or just hexagonal?

A: This specific model features a hexagonal bore designed to grip the shaft without the need for a separate keyway, ensuring secure torque transmission.

Q: What is the maximum RPM rating for the 90mm model?

A: The 90mm model is generally rated for up to 3000 RPM depending on the specific motor load and alignment conditions. Please consult your motor manual for precise limits.

Q: Does this coupling come with the elastic star insert included?

A: Yes, the package includes the cast iron jaws and the corresponding elastic star insert ready for installation.

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