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Home / Couplings / Precision Cross Universal Joint Coupling UNCA Single/Double UNC W Small Extendable Universal Joint with Pin Connection

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Carbon Steel 45#
Surface Treatment Black Oxide Finish
Connection Type Pin and Block
Configuration Single/Double Cross Available
Max Torque Capacity Up to 1200 Nm
Operating Angle 0° to 45°
Bore Diameter Range 10mm - 50mm
Application Industry Automotive, Agriculture, Machinery
Package Weight 1.8 kg
Warranty Period 12 Months

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Solid construction

Very sturdy coupling. It handles the angular misalignment in our setup without generating excessive heat or noise. Delivery was fast and packaging protected the item well.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect fit for my tractor PTO

This universal joint coupling replaced a worn-out part on my agricultural equipment perfectly. The pin connection is solid, and the build quality feels very robust. Installation was straightforward with standard tools.

A

Anonymous

Mar 24, 2026

Rating: 3/5

Decent but tight tolerance

The quality is good, but the bore was slightly tight for our specific shaft size. We had to do some minor honing to get it to slide on smoothly. Once installed, it functions correctly.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Excellent replacement part

Bought this as a spare for our workshop. The dimensions match the specifications exactly. The pin mechanism is secure and doesn't show any play after a week of testing.

A

Anonymous

Mar 13, 2026

Rating: 4/5

Good value but needs greasing

The coupling works well for our conveyor system. It handles the torque without issues. Just remember to grease the fittings immediately upon arrival as they come lightly oiled from the factory.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Heavy duty and reliable

We use these in a high-vibration environment and they have held up remarkably well. The black oxide finish provides decent corrosion resistance. Highly recommend for industrial machinery repairs.

5 FAQ

Q: Is customization available for non-standard bore sizes?

A: We primarily stock standard sizes listed in the attributes. For non-standard bores, please contact our sales team directly to discuss custom machining options.

Q: Can this be used in wet environments?

A: While the black oxide finish offers some protection, we recommend applying additional waterproof grease and regular maintenance if used in consistently wet or corrosive environments.

Q: What is the maximum operating speed for the double cross configuration?

A: For the double cross configuration, the recommended maximum operating speed is 3000 RPM, depending on the specific bore size and load conditions.

Q: Does this coupling come with the pins included?

A: Yes, the package includes the necessary pins and retaining clips for immediate installation.

Q: How often should the universal joint be lubricated?

A: Under normal operating conditions, we suggest lubricating the joint every 500 hours of operation or monthly, whichever comes first. Heavy-duty applications may require more frequent maintenance.

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