Skip to main content
Home / Couplings / Aluminum Alloy Single/Double Disc Coupling Servo Motor Flexible Variable Diameter Encoder Motor Flange Keyway Shaft Coupler

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Single/Double Disc Flexible
Application Servo Motor & Encoder Systems
Shaft Compatibility Variable Diameter (Custom Bore)
Connection Method Keyway and Set Screw
Torque Capacity High Precision Transmission
Misalignment Compensation Angular, Parallel, and Axial
Operating Temperature -20°C to 80°C
Surface Finish Anodized for Corrosion Resistance
Package Contents 1 x Coupler, Mounting Screws, Manual

6 reviews

A

Anonymous

Mar 27, 2026

Rating: 5/5

Precision engineering

As expected from industrial grade components. The anodized finish looks great and provides good protection. Installation was straightforward with the provided hardware.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect fit for my CNC project

The build quality is exceptional. The aluminum feels sturdy yet lightweight, and the keyway alignment was precise right out of the box. Highly recommended for servo applications.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Great for robotics

Used this on a robotic arm joint. The torque transmission is smooth and there is no backlash. Very satisfied with the performance and price point.

A

Anonymous

Mar 23, 2026

Rating: 4/5

Good value, fast shipping

Works well for connecting my encoder motor. The variable diameter option made it easy to match my specific shaft sizes. Only minor issue was the instructions were a bit vague.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Solid performer

Does exactly what it says. The flexible discs absorb shock well during start-stop cycles. Would buy again if I need more units for my automation setup.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Excellent flexibility and durability

I've been running this coupling at high RPMs for weeks with zero vibration issues. The double disc design handles misalignment better than my previous rubber couplers.

5 FAQ

Q: What is the maximum RPM rating for the double disc version?

A: The double disc version is rated for up to 10,000 RPM depending on the specific bore size and balance. For speeds exceeding this, please contact our engineering team for customization.

Q: Does this come with the set screws needed for installation?

A: Yes, each package includes high-tensile set screws and an Allen key for immediate installation.

Q: Is the keyway standard metric or imperial?

A: We offer both metric and imperial keyway standards. Please specify your requirement in the order notes or choose the appropriate SKU variant.

Q: How much angular misalignment can this coupling compensate for?

A: The flexible disc design allows for approximately 1.5 to 2 degrees of angular misalignment, as well as minor parallel and axial offsets, ensuring smooth operation even if alignment isn't perfect.

Q: Can this coupling handle both 5mm and 8mm shafts?

A: Yes, this model supports variable diameters. Please select your specific bore sizes (e.g., 5mm-8mm) from the dropdown menu when ordering to ensure a perfect fit.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Natural Aquamarine Black Flash Loose Beads for DIY Handmade Jewelry, Stringing Beads, and Round Beads

Natural Aquamarine Black Flash Loose Beads for DIY Handmade Jewelry, Stringing Beads, and Round Beads

$0.88

Touchmark Watercolor Sketchbook for Acrylic Markers and Colored Pencils, Mini Portable Pocket Painting Book for Children and Outdoor Sketching

Touchmark Watercolor Sketchbook for Acrylic Markers and Colored Pencils, Mini Portable Pocket Painting Book for Children and Outdoor Sketching

$6.74

Kunzite Loose Beads Donghai Crystal Agate Chalcedony Jade Gemstone Bracelet Pendant Single Bead Cat's Eye Accessories

Kunzite Loose Beads Donghai Crystal Agate Chalcedony Jade Gemstone Bracelet Pendant Single Bead Cat's Eye Accessories

$6.72

FAW J6P Wiper Arm Assembly for JH6/J6M/J6L, Large and Small J6 Trucks and Tractors

FAW J6P Wiper Arm Assembly for JH6/J6M/J6L, Large and Small J6 Trucks and Tractors

$11.00

Universal Front Mount Hook for E-Bikes and Motorcycles, No-Drill Helmet and Delivery Bag Hanger

Universal Front Mount Hook for E-Bikes and Motorcycles, No-Drill Helmet and Delivery Bag Hanger

$5.98

Huapu Haiyu Haixun Haishang Haiyue Haifeng 1.3L 1.XL 1.8L Clutch 5 Three-Piece Assembly

Huapu Haiyu Haixun Haishang Haiyue Haifeng 1.3L 1.XL 1.8L Clutch 5 Three-Piece Assembly

$436.00

Portable Oxygen Concentrator with Replaceable Batteries - Complete Set Including 4-Core, 8-Core, and 12-Core Batteries with Charging Base

Portable Oxygen Concentrator with Replaceable Batteries - Complete Set Including 4-Core, 8-Core, and 12-Core Batteries with Charging Base

$400.00

Custom 90° Right-Angle Hook Tool for Pulsator Washing Machine Base Removal

Custom 90° Right-Angle Hook Tool for Pulsator Washing Machine Base Removal

$2.36

MOMA Small Ma 4K Wireless Video Transmission System with HDMI and SDI for Filming and Live Streaming

MOMA Small Ma 4K Wireless Video Transmission System with HDMI and SDI for Filming and Live Streaming

$1,999.00

Youzhao Pai Creative Retro 3D Embossed House Number Plate – Custom Door Signs for Villas, Commercial Spaces, and Homes

Youzhao Pai Creative Retro 3D Embossed House Number Plate – Custom Door Signs for Villas, Commercial Spaces, and Homes

$200.00

Tianzheng DZ15LE-100/3N901T 100A Transparent Leakage Circuit Breaker, Molded Case Circuit Breaker 3901T 63A

Tianzheng DZ15LE-100/3N901T 100A Transparent Leakage Circuit Breaker, Molded Case Circuit Breaker 3901T 63A

$278.00

[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair

[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair

$880.00

Pelican Rolling Case pelican1560 - Waterproof Shockproof Safety Case for Photography Equipment and Instruments

Pelican Rolling Case pelican1560 - Waterproof Shockproof Safety Case for Photography Equipment and Instruments

$1,550.00

Disipulai Hot Air Circulation Vertical Food Warmer Display Cabinet - Adjustable Temperature Countertop Cooked Food Warming Equipment

Disipulai Hot Air Circulation Vertical Food Warmer Display Cabinet - Adjustable Temperature Countertop Cooked Food Warming Equipment

$2,023.00

Complete Pasteurization Production Line for Pomegranate, Grape, Orange, Apple Juice, and Mare's Milk

Complete Pasteurization Production Line for Pomegranate, Grape, Orange, Apple Juice, and Mare's Milk

$6,048.00

Portable Tire Stone Removal Tool - Essential Handheld Hook for Car Owners

Portable Tire Stone Removal Tool - Essential Handheld Hook for Car Owners

$13.73

Factory Direct Longan 160 Curved Hot Stamping Machine Fully Automatic Hot Foil Printer Pneumatic Heat Press Leather Embossing Machine

Factory Direct Longan 160 Curved Hot Stamping Machine Fully Automatic Hot Foil Printer Pneumatic Heat Press Leather Embossing Machine

$10,000.00

Bean Sprout Germinator Tray, Hydroponic Vegetable Growing Container, Soil-Free Pea Sprouting Pot

Bean Sprout Germinator Tray, Hydroponic Vegetable Growing Container, Soil-Free Pea Sprouting Pot

$14.06

TOPTOY Crayon Shin-chan Memory Echo Series Blind Box - Anime Figure Collectible Toy and Birthday Gift

TOPTOY Crayon Shin-chan Memory Echo Series Blind Box - Anime Figure Collectible Toy and Birthday Gift

$47.20

Natural Lightning Cat's Eye Yellow Tiger Eye Loose Beads, Single Crystal Beads for DIY Bracelets and Accessories

Natural Lightning Cat's Eye Yellow Tiger Eye Loose Beads, Single Crystal Beads for DIY Bracelets and Accessories

$3.91

Pirelli Tire 235/55R19, Original Equipment for Mercedes-Benz GLC, Genuine Tire Compatible with Audi/Land Rover/etc.

Pirelli Tire 235/55R19, Original Equipment for Mercedes-Benz GLC, Genuine Tire Compatible with Audi/Land Rover/etc.

$512.00

Biliansheng Hair Transplant: No-Shave Hairline Restoration, Top Thinning Density Enhancement, Nationwide Chain

Biliansheng Hair Transplant: No-Shave Hairline Restoration, Top Thinning Density Enhancement, Nationwide Chain

$9,999.00

Luru Authentic 15-Note Steel Tongue Drum - Professional Grade for Beginners, Adults, and Children

Luru Authentic 15-Note Steel Tongue Drum - Professional Grade for Beginners, Adults, and Children

$500.00

MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage

MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage

$9.90

Used Car Tires - Sizes 155/165/175/185/195/205/215 for 13/14/15/16 inch Rims

Used Car Tires - Sizes 155/165/175/185/195/205/215 for 13/14/15/16 inch Rims

$140.00

Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor

Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor

$76.50

Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students

Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students

$32.00

C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine

C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine

$16,005.00

Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification

Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification

$118.00

Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires

Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires

$4.80