Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	45# Steel and Stainless Steel
Coupling Type	Single/Double Diaphragm with Expansion Sleeve
Application	High Torque Motor Connection
Mounting Method	Clamping with Expansion Sleeve
Torque Capacity	High Torque Transmission
Misalignment Compensation	Angular, Parallel, and Axial
Surface Finish	Precision Machined
Operating Temperature	-20°C to +120°C
Maintenance Requirement	Low Maintenance
Package Contents	1 x Coupling Assembly, Installation Guide

6 reviews

Anonymous

Mar 21, 2026

Rating: 4/5

Good product, clear instructions needed

The coupling itself is fantastic and robust. However, the installation guide could be more detailed regarding torque specs for the clamping bolts. Once installed correctly, it runs silently.

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent build quality for industrial use

This coupling fits perfectly on our servo motors. The expansion sleeve makes installation much faster compared to traditional keyway setups. Very satisfied with the torque transmission.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect replacement part

Replaced an old worn-out coupling with this double diaphragm model. The difference in smoothness is night and day. Highly recommend for anyone needing reliable power transmission.

Anonymous

Mar 16, 2026

Rating: 4/5

Solid performance, slightly heavy

Works great for our CNC machinery. It handles high speeds without vibration. The only downside is that it is a bit heavier than expected due to the 45# steel construction, but durability seems top-notch.

Anonymous

Mar 13, 2026

Rating: 5/5

Reliable for high-speed applications

Using this on a high-RPM spindle motor. No signs of wear after three months of continuous operation. The stainless steel components resist corrosion well in our workshop environment.

Anonymous

Mar 08, 2026

Rating: 5/5

Great value for money

We ordered five units for our production line. All arrived well-packaged and within spec. The clamping mechanism is very secure and eliminates backlash effectively.

5 FAQ

Q: Can I use this with a shaft diameter of 20mm?

A: This specific listing covers a range of sizes. Please check the selection menu for the exact bore size you need, as we offer models compatible with 20mm shafts.

Q: Is the expansion sleeve reusable if I need to move the coupling?

A: Yes, the expansion sleeve is designed to be reusable. However, ensure the mating surfaces are cleaned thoroughly before re-installation to maintain holding power.

Q: What is the maximum angular misalignment this can handle?

A: Depending on the specific model size, our double diaphragm couplings typically accommodate up to 1.5 degrees of angular misalignment. Refer to the technical datasheet for exact figures per size.

Q: Does this come with a certificate of material compliance?

A: Yes, all our 45# Steel and Stainless Steel couplings ship with a standard material compliance certificate upon request at checkout.

Q: Does this coupling require lubrication during operation?

A: No, the diaphragm design is maintenance-free and does not require any lubrication, which helps keep your machinery clean.

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