Skip to main content
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.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Cabinet Storage Box, Foldable Rattan-Style Basket for Countertop Snacks, Clothes, and Toys

Cabinet Storage Box, Foldable Rattan-Style Basket for Countertop Snacks, Clothes, and Toys

$19.90

Custom PVC Sign Letters, Advertising Signs, Branding Wall Characters, Snowflake Board, Acrylic Crystal Letters for Background Walls

Custom PVC Sign Letters, Advertising Signs, Branding Wall Characters, Snowflake Board, Acrylic Crystal Letters for Background Walls

$5.00

Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening

Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening

$41.70

Fully Protected Smart Battery Tester - Performance Detector for Electric Vehicle and Car Batteries

Fully Protected Smart Battery Tester - Performance Detector for Electric Vehicle and Car Batteries

$286.00

Large-Diameter Steel Corrugated Drainage Pipe for Bridge Culverts

Large-Diameter Steel Corrugated Drainage Pipe for Bridge Culverts

$61.11

Water Curtain Paint Booth - 3-Meter Spray Station with Water Circulation for Paint Mist Purification, Eco-Friendly Dust Removal, 1-Meter Small Water Curtain Cabinet

Water Curtain Paint Booth - 3-Meter Spray Station with Water Circulation for Paint Mist Purification, Eco-Friendly Dust Removal, 1-Meter Small Water Curtain Cabinet

$1,980.00

Portable Cleaning and Storage Box for Elderly Dentures, Compact Case for Full-Set False Teeth Soaking and Storage

Portable Cleaning and Storage Box for Elderly Dentures, Compact Case for Full-Set False Teeth Soaking and Storage

$32.22

RC Model A07 PNP FPV Analog/Digital Racing Drone 7-Inch Aerial Photography Quadcopter Frame

RC Model A07 PNP FPV Analog/Digital Racing Drone 7-Inch Aerial Photography Quadcopter Frame

$1,643.00

ACCSOON SeeMo Monitor Converter for iPhone and iPad, Real-Time Monitoring and Live Streaming

ACCSOON SeeMo Monitor Converter for iPhone and iPad, Real-Time Monitoring and Live Streaming

$1,059.00

Solenoid Valve Initial Inspection Test Bench / Solenoid Valve Leakage Test Bench / Solenoid Valve Airtightness Test Bench

Solenoid Valve Initial Inspection Test Bench / Solenoid Valve Leakage Test Bench / Solenoid Valve Airtightness Test Bench

$7,482.00

Factory Direct Hardware Screw and Parts Automatic Weighing and Packaging Machine, Vertical Weighing and Packing Equipment

Factory Direct Hardware Screw and Parts Automatic Weighing and Packaging Machine, Vertical Weighing and Packing Equipment

$36,860.00

Commercial Heated Beverage Cabinet, Small Countertop Display Warmer with Constant Temperature for Supermarkets

Commercial Heated Beverage Cabinet, Small Countertop Display Warmer with Constant Temperature for Supermarkets

$1,099.00

Manufacturer Supply Standard Dual-Color Film Copy Paper Ink Water-Based Ink Gravure Printing Machine

Manufacturer Supply Standard Dual-Color Film Copy Paper Ink Water-Based Ink Gravure Printing Machine

$17,500.00

Gray Surface Pen for Sketching and Quick Drawing - Art Highlight Sketch Paper Blending Stump and Sponge Eraser Tool Set for Still Life, Geometry, and Portraits, Designed for Art Students and Exam Candidates, Complete Beginner Kit

Gray Surface Pen for Sketching and Quick Drawing - Art Highlight Sketch Paper Blending Stump and Sponge Eraser Tool Set for Still Life, Geometry, and Portraits, Designed for Art Students and Exam Candidates, Complete Beginner Kit

$6.80

Extra-Large Denture Storage Box for Seniors, Food-Grade Portable Cleaning and Soaking Container for Full Dentures

Extra-Large Denture Storage Box for Seniors, Food-Grade Portable Cleaning and Soaking Container for Full Dentures

$29.90

[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos

[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos

$49.90

Orthodontic Retainer Case for Invisible Braces, Portable Storage and Cleaning Box for Teeth Aligners and Dentures

Orthodontic Retainer Case for Invisible Braces, Portable Storage and Cleaning Box for Teeth Aligners and Dentures

$23.10

Portable Retainer Case for Braces, Orthodontic Clear Aligner Storage Box with Chewie and Removal Tool

Portable Retainer Case for Braces, Orthodontic Clear Aligner Storage Box with Chewie and Removal Tool

$3.98

Freestanding Multi-Tier Toilet Storage Rack for Bathroom, Laundry, and Balcony Organization

Freestanding Multi-Tier Toilet Storage Rack for Bathroom, Laundry, and Balcony Organization

$174.00

Biliansheng Hair Transplant and Care - Herbal Hair Nourishment Treatment Package

Biliansheng Hair Transplant and Care - Herbal Hair Nourishment Treatment Package

$480.00

Traditional Wooden Rattle Drum with Sheepskin Head for Babies - Chewable Handheld Toy with Fortune Zodiac Design

Traditional Wooden Rattle Drum with Sheepskin Head for Babies - Chewable Handheld Toy with Fortune Zodiac Design

$11.90

2026 Spring New FLTRP Grade 3 English Vocabulary & Sentence Flashcards for Classroom Teaching

2026 Spring New FLTRP Grade 3 English Vocabulary & Sentence Flashcards for Classroom Teaching

$8.42

Custom Signs and Labels New Version No Smoking Material Signs Five Boards One Diagram Fire Safety Instructions PVC Acrylic Number Plate

Custom Signs and Labels New Version No Smoking Material Signs Five Boards One Diagram Fire Safety Instructions PVC Acrylic Number Plate

$2.00

Water Brush Pen Set with Large Capacity, Gouache and Solid Watercolor Paints, Drawing Tools for Students and Beginners

Water Brush Pen Set with Large Capacity, Gouache and Solid Watercolor Paints, Drawing Tools for Students and Beginners

$32.00

Chineng Commercial Automatic Small Scallion Chopper, Multi-function Vegetable Cutter for Chili Slicing and Filling Preparation in Cafeterias

Chineng Commercial Automatic Small Scallion Chopper, Multi-function Vegetable Cutter for Chili Slicing and Filling Preparation in Cafeterias

$16,200.00

G80 Lifting Chain with Hook Head, Manganese Steel Alloy Chain for Hoisting Stones and Towing

G80 Lifting Chain with Hook Head, Manganese Steel Alloy Chain for Hoisting Stones and Towing

$79.00

Car Interior Button Frame and Window Switch Chrome Panel, New Energy Vehicle ABS Parts with Hot Melt Welding and Injection Molding

Car Interior Button Frame and Window Switch Chrome Panel, New Energy Vehicle ABS Parts with Hot Melt Welding and Injection Molding

$96.00

Foldable Multi-Function Tire Stone Removal Tool for Cars

Foldable Multi-Function Tire Stone Removal Tool for Cars

$53.60

Premium 3D Printing Pen RP600A, No Display, Best-Selling Gift for Kids, 3D Pen RP6

Premium 3D Printing Pen RP600A, No Display, Best-Selling Gift for Kids, 3D Pen RP6

$230.15

Marie's Thickened 8K Watercolor Pad, 16K Portable Sketchbook for Beginners and Art Students - Travel-friendly Multi-use Painting Book

Marie's Thickened 8K Watercolor Pad, 16K Portable Sketchbook for Beginners and Art Students - Travel-friendly Multi-use Painting Book

$7.23