Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Grade Carbon Steel (C45)
Surface Treatment	Black Oxide Finish
Connection Type	Double Roller Chain
Available Sizes	4012, 5014, 5016, 5018, 6018, 6022
Bore Type	Finished Bore with Keyway
Max Torque Capacity	Up to 3,800 Nm (Model Dependent)
Max Speed	4,000 RPM
Misalignment Tolerance	Angular: 1.5°, Parallel: 0.5mm
Lubrication Requirement	Grease or Oil Bath Recommended
Application Industry	Conveyors, Pumps, Compressors, Mixers

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Solid build quality

The steel feels very robust and the black oxide coating seems durable. I deducted one star only because the included instructions were minimal, but for experienced mechanics, it's not an issue.

Anonymous

Mar 27, 2026

Rating: 4/5

Good product, fast shipping

The 6018 size arrived exactly as described. The keyway dimensions were spot on. It would be nice if they offered a stainless steel option for corrosive environments, but this carbon steel version is great for standard use.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect fit for our conveyor system

We ordered the 5018 model to replace a worn-out coupling on our main production line. The finished bore was precise, and installation took less than an hour. The chain runs smoothly without any vibration.

Anonymous

Mar 14, 2026

Rating: 5/5

Great value for industrial use

Compared to other suppliers, the pricing here is excellent for the quality received. We have installed six units across different pumps, and all are performing flawlessly under heavy load.

Anonymous

Mar 12, 2026

Rating: 5/5

Exceeded expectations

Very easy to install and maintain. The ability to lubricate the chain easily extends the life of the component significantly. Highly recommend for anyone needing a standard KC series replacement.

Anonymous

Mar 03, 2026

Rating: 5/5

Reliable and sturdy

This coupling handles the misalignment in our older machinery much better than the rigid couplings we used before. No noise, no heat buildup after running for 24 hours straight.

5 FAQ

Q: What type of grease do you recommend for high-temperature applications?

A: For temperatures exceeding 80°C, we recommend using a high-temperature lithium complex grease. Please ensure regular re-lubrication intervals are shortened under these conditions.

Q: Can I request a specific bore size that is not listed in the dropdown menu?

A: Standard finished bores are limited to the sizes shown. However, we offer custom machining services for non-standard bores; please contact our sales team directly for a quote.

Q: What is the lead time for bulk orders of the 4012 model?

A: For orders exceeding 50 units, the typical lead time is 5-7 business days. Large volume projects may qualify for expedited manufacturing; please reach out for a detailed schedule.

Q: Is the keyway standard DIN or ANSI?

A: Our standard finished bores typically follow ISO/DIN standards. If you require ANSI keyways specifically, please note this in your order comments or contact support before purchase.

Q: Does this coupling come with the roller chain included?

A: Yes, all Standard KC Coupling sets include the double roller chain, connecting pins, and the two sprocket hubs.

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