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)
Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$46.55

408 Fast-Drying Glue - Strong Low-Whitening Instant Adhesive for Metal and Plastic, Heat Resistant

408 Fast-Drying Glue - Strong Low-Whitening Instant Adhesive for Metal and Plastic, Heat Resistant

$53.12

UE5.1-5.7 Ancient Sci-Fi Gate Model Instrument Consultation

UE5.1-5.7 Ancient Sci-Fi Gate Model Instrument Consultation

$2.00

Biliansheng Hair Transplant - Non-Shave Female Hairline Restoration & Density Enhancement

Biliansheng Hair Transplant - Non-Shave Female Hairline Restoration & Density Enhancement

$19,999.00

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student

$32.00

Beginner Watercolor Painting Line Art Coloring Book, Hua Meng Lv Ren by Stan, Fine Texture, 2-Pack Free Shipping

Beginner Watercolor Painting Line Art Coloring Book, Hua Meng Lv Ren by Stan, Fine Texture, 2-Pack Free Shipping

$10.60

New Wanli Tire 265/45R21 SU306+ - Compatible with AITO M7, BYD Tang, Range Rover, Li Auto, and NIO

New Wanli Tire 265/45R21 SU306+ - Compatible with AITO M7, BYD Tang, Range Rover, Li Auto, and NIO

$528.00

Suzhou Factory Wholesale Chain Store Logo - RGB Illuminated Letters, Acrylic Neon Signs for Window and Counter Display

Suzhou Factory Wholesale Chain Store Logo - RGB Illuminated Letters, Acrylic Neon Signs for Window and Counter Display

$1,911.00

RoHS 1.0 Environmental Tester for Alloy Analysis and Heavy Metal Detection in Plastic Toys

RoHS 1.0 Environmental Tester for Alloy Analysis and Heavy Metal Detection in Plastic Toys

$15.30

Mont Marte Long-Handle Bristle Brush – Professional Art Brush for Acrylics, Oil Painting, and Flat Wash Techniques

Mont Marte Long-Handle Bristle Brush – Professional Art Brush for Acrylics, Oil Painting, and Flat Wash Techniques

$37,500.00

Portable Plastic Backpack Fertilizer Bucket for Manual Fruit Picking, Seed Feeding, and PPC Fertilization

Portable Plastic Backpack Fertilizer Bucket for Manual Fruit Picking, Seed Feeding, and PPC Fertilization

$9.50

Chinese-Style Hand-Drawn Plant Line Art Coloring Book on 100% Cotton Watercolor Paper

Chinese-Style Hand-Drawn Plant Line Art Coloring Book on 100% Cotton Watercolor Paper

$15.80

Eagle Brand 99021 Industrial Scouring Pads, Cleaning Cloths, and Polishing Pads Supply

Eagle Brand 99021 Industrial Scouring Pads, Cleaning Cloths, and Polishing Pads Supply

$666.00

Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)

Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)

$4.50

Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve

Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve

$8.60

Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store

Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store

$3.00

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

Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo

Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo

$37.00

Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)

Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)

$60.95

Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)

Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)

$21.60

Jay Chou - Feng BROTHER_CHAO Piano Accompaniment Sheet Music

Jay Chou - Feng BROTHER_CHAO Piano Accompaniment Sheet Music

$50.00

Toplip Automatic Retractable Air Hose Reel, Water Drum, High-Pressure Foam Drum for Pneumatic Tools and Auto Repair

Toplip Automatic Retractable Air Hose Reel, Water Drum, High-Pressure Foam Drum for Pneumatic Tools and Auto Repair

$118.00

500L Yogurt Production Line - Stand-Up Pouch Filling Machine with Complete Dairy Processing Equipment and Fermentation Tank

500L Yogurt Production Line - Stand-Up Pouch Filling Machine with Complete Dairy Processing Equipment and Fermentation Tank

$13,720.00

5A Grade Uruguay Natural Deep Purple Amethyst Loose Beads DIY Crystal Accessories Amethyst Loose Round Beads Semi-Finished

5A Grade Uruguay Natural Deep Purple Amethyst Loose Beads DIY Crystal Accessories Amethyst Loose Round Beads Semi-Finished

$1.20

Car Vacuum Cleaner - High Suction, Compact, Silent, and High-Power

Car Vacuum Cleaner - High Suction, Compact, Silent, and High-Power

$68.89

Fifty Seven-Character Quatrains in Wang Xizhi's Running Script Calligraphy

Fifty Seven-Character Quatrains in Wang Xizhi's Running Script Calligraphy

$67.00

Food-Grade Square Retainer Storage Case for Orthodontic Aligners and Dentures

Food-Grade Square Retainer Storage Case for Orthodontic Aligners and Dentures

$6.72

365-Day Electric Guitarist Training Plan by Toshiro Miyako – Rock Electric Guitar Chinese Tutorial

365-Day Electric Guitarist Training Plan by Toshiro Miyako – Rock Electric Guitar Chinese Tutorial

$53.00

Portable Invisible Aligner Case - Compact Breathable Box for Orthodontic Retainers, Dentures, and Cleaning Storage

Portable Invisible Aligner Case - Compact Breathable Box for Orthodontic Retainers, Dentures, and Cleaning Storage

$18.80

Makeup Room Shelf Triangle Bathroom Corner Storage Rack No-Drill Wall-Mounted Vanity Organizer

Makeup Room Shelf Triangle Bathroom Corner Storage Rack No-Drill Wall-Mounted Vanity Organizer

$23.82