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

View More
All Categories
Best Seller (30)
New List (30)
Face Towel Storage Box for Disposable Cleansing Tissues and Cotton Pads, Wall-Mounted Bathroom Organizer

Face Towel Storage Box for Disposable Cleansing Tissues and Cotton Pads, Wall-Mounted Bathroom Organizer

$19.90

France Arches Watercolor Paper Handmade 100% Cotton Artist Grade Sample Sheets Loose Paper 300G 640G Full Sheet Half Sheet 4K 8K 16K Medium and Rough Texture Watercolor Paint Paper

France Arches Watercolor Paper Handmade 100% Cotton Artist Grade Sample Sheets Loose Paper 300G 640G Full Sheet Half Sheet 4K 8K 16K Medium and Rough Texture Watercolor Paint Paper

$20.80

Premium Ceramic Tea Canister Gift Box – Empty Packaging for Black, Pu'er, White, and Biluochun Tea

Premium Ceramic Tea Canister Gift Box – Empty Packaging for Black, Pu'er, White, and Biluochun Tea

$121.00

Rechargeable Gen 2 Personal Air Purifier with Auto Fan for Travel, Commute, and Flights

Rechargeable Gen 2 Personal Air Purifier with Auto Fan for Travel, Commute, and Flights

$145.00

Roast Duck Warmer Cabinet, Constant Temperature Box, Commercial Crispy Pork Belly Hanging Duck Cabinet, Roasted Chicken and Cooked Food Display Warmer

Roast Duck Warmer Cabinet, Constant Temperature Box, Commercial Crispy Pork Belly Hanging Duck Cabinet, Roasted Chicken and Cooked Food Display Warmer

$318.00

Guangda Dental | Straumann Implant Services for Missing Teeth Restoration (Foshan Branch Only)

Guangda Dental | Straumann Implant Services for Missing Teeth Restoration (Foshan Branch Only)

$2,052.00

Painted Wooden Colored Pencils Set with Gold Powder, Creative Engineering Pencils for Gongbi Coloring, Basic Packaging

Painted Wooden Colored Pencils Set with Gold Powder, Creative Engineering Pencils for Gongbi Coloring, Basic Packaging

$11.12

South Korea Dentium Dental Implant Abutment with Full Ceramic Crown for Missing Tooth Restoration

South Korea Dentium Dental Implant Abutment with Full Ceramic Crown for Missing Tooth Restoration

$1,980.00

Balloon Warm Star Pre-order Unspoken Words Phase 3 17 Years Old Little Bean 'Chance Encounter' Series Merchandise

Balloon Warm Star Pre-order Unspoken Words Phase 3 17 Years Old Little Bean 'Chance Encounter' Series Merchandise

$22.00

Tissue Holder Magnetic Punch-free for Mirror Cabinets

Tissue Holder Magnetic Punch-free for Mirror Cabinets

$5.73

Industrial Scouring Pad Roll – Abrasive Brushed Cloth for Stainless Steel Polishing and Finishing

Industrial Scouring Pad Roll – Abrasive Brushed Cloth for Stainless Steel Polishing and Finishing

$20.00

DIY Aromatherapy Candle Wax Melting Cup – Stainless Steel Handle Heating Pot with Multi-Size Measuring Spoons and Color Mixing Cup

DIY Aromatherapy Candle Wax Melting Cup – Stainless Steel Handle Heating Pot with Multi-Size Measuring Spoons and Color Mixing Cup

$5.78

7-Piece Square Pot Set B with Tray, Plastic Colorful Succulent Pots, Simple and Durable Design for Root Explosion and Control, White Square Pots

7-Piece Square Pot Set B with Tray, Plastic Colorful Succulent Pots, Simple and Durable Design for Root Explosion and Control, White Square Pots

$53.00

Multi-Layer Over-Toilet Storage Rack, Floor-Standing Laundry Organizer for Bathroom, Balcony, No-Drill Installation

Multi-Layer Over-Toilet Storage Rack, Floor-Standing Laundry Organizer for Bathroom, Balcony, No-Drill Installation

$31.42

Feiyue Car Tires: Sizes 205, 195, 215, 255; Longteng Series 45, 50, 25, 65, 60R16, 17 Rim 8

Feiyue Car Tires: Sizes 205, 195, 215, 255; Longteng Series 45, 50, 25, 65, 60R16, 17 Rim 8

$485.00

2 Pieces Free Shipping Outdoor Rafting Creek Swimming Gear Dustproof Waterproof Bag Wearable or Handheld Ultra-Light Storage Sack

2 Pieces Free Shipping Outdoor Rafting Creek Swimming Gear Dustproof Waterproof Bag Wearable or Handheld Ultra-Light Storage Sack

$8.50

[Dental Implant Chief Specialist] Implant Examination and Treatment Planning

[Dental Implant Chief Specialist] Implant Examination and Treatment Planning

$9.90

Wall-Mounted Toilet Storage Rack - No-Drill Bathroom Shelf Organizer for Above the Toilet

Wall-Mounted Toilet Storage Rack - No-Drill Bathroom Shelf Organizer for Above the Toilet

$26.07

New Wireless Car Vacuum Cleaner, High Suction Home Use, Compact Handheld Silent High-Power Vacuum

New Wireless Car Vacuum Cleaner, High Suction Home Use, Compact Handheld Silent High-Power Vacuum

$114.00

Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$47.55

Cement-Specific Pigment Powder for DIY Crafts, Gypsum Dye for Creative Flower Pot Coloring

Cement-Specific Pigment Powder for DIY Crafts, Gypsum Dye for Creative Flower Pot Coloring

$3.83

9 Garrett iCover 270 Twin 5RX Restech 072.6S28 Turbocharger 20-Dragon 0TXD GT 37042

9 Garrett iCover 270 Twin 5RX Restech 072.6S28 Turbocharger 20-Dragon 0TXD GT 37042

$6,755.00

Household Small Range Hood, Portable USB Desktop Fume Extractor for Living Room Hot Pot and BBQ Odor Removal, Mini Smoke Absorber

Household Small Range Hood, Portable USB Desktop Fume Extractor for Living Room Hot Pot and BBQ Odor Removal, Mini Smoke Absorber

$41.00

Retainer Storage Box, Clear Case for Invisible Aligners with Mirror, Portable Orthodontic Appliance Carrier, Instagram Style

Retainer Storage Box, Clear Case for Invisible Aligners with Mirror, Portable Orthodontic Appliance Carrier, Instagram Style

$13.40

Hairline Transplant | No-Shave Hair Transplant | 1-1500 Units Long Hair Planting for Natural Flow and Volume - Department Director Service

Hairline Transplant | No-Shave Hair Transplant | 1-1500 Units Long Hair Planting for Natural Flow and Volume - Department Director Service

$25,800.00

Zhong Yao Xuan Shi Biao Small Regular Script Hard Pen Copybook, 1.8cm Column Width, Tear-Off Sheets for Precise Tracing – Source of Regular Script

Zhong Yao Xuan Shi Biao Small Regular Script Hard Pen Copybook, 1.8cm Column Width, Tear-Off Sheets for Precise Tracing – Source of Regular Script

$29.70

Chunfei Grocery Store Yun'an GR02 Gravel Bike Thru-Axle Disc Brake Lightweight Touring with Multiple Rack Mounts

Chunfei Grocery Store Yun'an GR02 Gravel Bike Thru-Axle Disc Brake Lightweight Touring with Multiple Rack Mounts

$8,974.00

Anti-Tangle High-Strength Grade 100 Lifting Chain for Industrial Hoisting

Anti-Tangle High-Strength Grade 100 Lifting Chain for Industrial Hoisting

$776.44

DIY Rose Essential Oil Handmade Soap Customization

DIY Rose Essential Oil Handmade Soap Customization

$35.00

Adjustable Height Simple Storage Shelf - Wooden and Iron Bookcase, Steel-Wood Supermarket Display Rack

Adjustable Height Simple Storage Shelf - Wooden and Iron Bookcase, Steel-Wood Supermarket Display Rack

$256.00