Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	304 Stainless Steel
Coupling Type	Diaphragm Lamina
Configuration	Single/Double Diaphragm Option
Model Series	SJM012345678910
Max Torque Capacity	1500 Nm
Max Speed	8000 RPM
Operating Temperature	-40°C to +200°C
Bore Range	20mm - 65mm
Misalignment Compensation	Angular, Parallel, and Axial
Finish	Polished Industrial Grade

6 reviews

Anonymous

Mar 16, 2026

Rating: 5/5

Excellent corrosion resistance

We operate in a humid environment and the 304 stainless steel holds up perfectly. No signs of rust after six months of continuous operation.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect for high-speed applications

Installed this on our packaging line motor. The balance is excellent and vibration is virtually non-existent even at max RPM. Very happy with the stainless steel build quality.

Anonymous

Mar 06, 2026

Rating: 4/5

Solid construction, precise fit

The machining tolerances are tight which made installation straightforward. Took off one star only because the documentation could be slightly clearer on torque specs for the larger bore sizes.

Anonymous

Mar 03, 2026

Rating: 5/5

Robust and reliable

Been using DJM type couplings for years and this specific model is one of the best. The elastic lamina design absorbs shock loads effectively.

Anonymous

Mar 02, 2026

Rating: 4/5

Good value for money

Does exactly what it says on the tin. Handles misalignment well and keeps our conveyor running smooth. Delivery was faster than expected too.

Anonymous

Mar 01, 2026

Rating: 5/5

Great replacement part

Replaced an old rubber coupling with this diaphragm type. The difference in maintenance intervals is huge. No wear parts to replace regularly. Highly recommended for industrial use.

5 FAQ

Q: Is this suitable for food processing machinery?

A: Yes, the 304 Stainless Steel material and polished finish make it suitable for food processing environments, provided it is cleaned according to standard hygiene protocols.

Q: What is the lead time for custom bore sizes outside the standard range?

A: Standard bores (20mm-65mm) ship within 2 days. Custom bores typically require 5-7 business days for machining and quality inspection.

Q: Can this coupling handle both single and double diaphragm configurations?

A: Yes, the SJM012345678910 series is designed to be configurable as either a single or double diaphragm unit depending on your specific misalignment requirements.

Q: What is the maximum operating temperature for the stainless steel version?

A: The 304 Stainless Steel model is rated for continuous operation between -40°C and +200°C.

Q: Do I need special tools to install the expansion sleeve?

A: Standard metric hex keys and a torque wrench are sufficient. We recommend following the torque values listed in the included installation manual for optimal performance.

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