Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Strength Nylon (PA6)
Coupling Type	Curved Gear Internal Sleeve
Application	Oil Pump and Motor Connection
Available Sizes	NL2, NL3, NL4, NL5, NL6, NL7, NL8, NL9
Torque Capacity	Varies by model size (See specification chart)
Max Speed	Up to 4000 RPM depending on size
Misalignment Tolerance	Angular, Parallel, and Axial compensation
Operating Temperature	-20°C to +80°C
Surface Finish	Smooth machined steel hubs with nylon sleeve
Installation	Keyway driven, requires standard keys and set screws

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Excellent replacement part

Replaced a worn-out coupling on an industrial oil pump. This NL series fits exactly as described. The flexibility of the nylon sleeve is great for protecting the motor bearings from shock loads.

Anonymous

Mar 20, 2026

Rating: 4/5

Works as expected

Solid coupling for the price. It handles the torque requirements of our 5HP motor without issue. Just ensure you select the correct bore size before ordering.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect fit for our hydraulic pump setup

Ordered the NL5 size for a motor-to-pump connection. The curved gear design absorbed the slight misalignment perfectly, and vibration has decreased significantly compared to our old rigid coupling. Highly recommended.

Anonymous

Mar 16, 2026

Rating: 5/5

Great value for money

Much cheaper than buying OEM but performs just as well. The curved tooth profile really does help with noise reduction during operation. Very satisfied with this purchase.

Anonymous

Mar 08, 2026

Rating: 4/5

Good quality, fast shipping

The nylon sleeve feels durable and the steel hubs are well-machined. Took off one star because the instruction diagram was a bit small, but installation was straightforward if you know what you are doing.

Anonymous

Mar 02, 2026

Rating: 5/5

Robust construction

We use these in a dirty environment and they hold up well. The material seems resistant to oil splashes and the teeth engagement is smooth. Will be ordering more sizes for our inventory.

5 FAQ

Q: What is the maximum angular misalignment this can handle for size NL6?

A: For the NL6 size, the maximum allowable angular misalignment is generally around 1.5 degrees. However, please refer to the technical datasheet for precise load-dependent limits.

Q: How often should the nylon sleeve be inspected or replaced?

A: We recommend inspecting the sleeve every 6 months under normal operating conditions. Replace it immediately if you notice cracking, excessive wear on the teeth, or increased vibration.

Q: Does this coupling come with the keys and set screws included?

A: The coupling hubs come with pre-drilled holes for set screws, but keys and set screws are typically sold separately to allow for custom bore sizing. Please check the specific product variant details.

Q: Is the nylon sleeve resistant to hydraulic oil?

A: Yes, the high-strength nylon (PA6) used in our sleeves offers good resistance to mineral oils and greases commonly found in hydraulic systems.

Q: Can I mix different NL sizes, like an NL4 hub with an NL5 sleeve?

A: No, the hubs and sleeves are not interchangeable between different NL sizes. You must match the hub size exactly with the corresponding sleeve size (e.g., NL4 hub with NL4 sleeve).

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