Skip to main content
Home / Couplings / Diaphragm-Type Elastic Aluminum Alloy Coupling for Single/Dual Motors, Diaphragm Coupling Single/Double Diaphragm

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Strength Aluminum Alloy
Coupling Type Diaphragm-Type Elastic
Configuration Single and Double Diaphragm Options
Motor Compatibility Single and Dual Motor Systems
Torque Capacity High Torque Transmission
Misalignment Compensation Angular, Parallel, and Axial
Operating Temperature -40°C to +120°C
Surface Finish Anodized for Corrosion Resistance
Maintenance Requirement Lubrication-Free Operation
Application Industry Robotics, CNC Machinery, and Automation

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good value for money

Solid construction and easy to install. The anodized finish looks professional. Took off one star because the installation manual could be more detailed regarding torque specs.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Great performance, precise sizing needed

Works exactly as described for our dual motor application. Just ensure you measure your shaft diameters carefully before ordering, as the fit needs to be precise.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Excellent for high-speed applications

Our testing rig runs at very high RPMs, and this coupling remains stable. The elastic diaphragm absorbs shocks effectively, protecting our sensitive motors.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Zero backlash operation

We replaced our old elastomer couplings with these diaphragm types, and the difference in precision is night and day. No backlash and very smooth operation at high speeds.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Durable and reliable

Been running this coupling in an industrial automation arm for three months now. It shows no signs of wear and handles the constant start-stop cycles beautifully.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my CNC setup

The build quality is exceptional. The aluminum alloy feels robust yet lightweight, and the double diaphragm design handled the misalignment in my motor setup perfectly without any vibration.

5 FAQ

Q: What is the maximum angular misalignment this can handle?

A: The single diaphragm model typically handles up to 1 degree, while the double diaphragm model can accommodate up to 2 degrees of angular misalignment, depending on the specific bore size.

Q: Is the material suitable for outdoor environments?

A: Yes, the aluminum alloy features an anodized surface finish that provides excellent corrosion resistance, making it suitable for most outdoor or humid industrial environments.

Q: Does this coupling require regular lubrication?

A: No, the diaphragm-type design is maintenance-free and does not require any lubrication during its operational life.

Q: Can I use the single diaphragm version for a dual motor setup?

A: While technically possible depending on alignment, we strongly recommend the double diaphragm version for dual motor setups to better compensate for parallel misalignment and reduce stress on the bearings.

Q: Do you offer custom bore sizes for non-standard shafts?

A: Standard sizes are listed in the catalog. For non-standard shaft diameters, please contact our sales team directly to discuss custom machining options and lead times.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Rubber Cable Raceway and Speed Bump with Movable Cover

Rubber Cable Raceway and Speed Bump with Movable Cover

$31.44

Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty

Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty

$7,455.00

Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer

Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer

$338.00

U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip

U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip

$102.00

Rongbaozhai Calligraphy Felt Mat - Creative Printed Desk Pad for Brush Writing and Chinese Painting

Rongbaozhai Calligraphy Felt Mat - Creative Printed Desk Pad for Brush Writing and Chinese Painting

$14.20

Car Tire Stone Hook, Multi-Function Rust-Resistant Tool for Removing Stones, Picking, and Scraping Tire Debris

Car Tire Stone Hook, Multi-Function Rust-Resistant Tool for Removing Stones, Picking, and Scraping Tire Debris

$8.33

Hanmo Brocade Wrist Rest Traditional Four Treasures Study Gourd-Shaped Arm Pad Calligraphy Hand Pillow Artistic Fresh Wrist Rest

Hanmo Brocade Wrist Rest Traditional Four Treasures Study Gourd-Shaped Arm Pad Calligraphy Hand Pillow Artistic Fresh Wrist Rest

$9.10

West Coast Chicano Script Art, Glowing Decorative Painting for Shop Opening Gifts and Living Room Background Walls

West Coast Chicano Script Art, Glowing Decorative Painting for Shop Opening Gifts and Living Room Background Walls

$430.00

G80 Heavy Duty Chain SHQ - 2m/6m/8m/10m Short Chains for Manual Chain Hoists

G80 Heavy Duty Chain SHQ - 2m/6m/8m/10m Short Chains for Manual Chain Hoists

$8.51

Commercial Food Warmer Small Heating Thermostat Display Cabinet Countertop Chestnut Egg Tart Bread Glass Cooked Food Cabinet

Commercial Food Warmer Small Heating Thermostat Display Cabinet Countertop Chestnut Egg Tart Bread Glass Cooked Food Cabinet

$188.00

Eye-Protection Highlighter Pens for Elementary Students - Colored Markers for Key Points, Note-Taking for Middle Schoolers, Journaling Pens

Eye-Protection Highlighter Pens for Elementary Students - Colored Markers for Key Points, Note-Taking for Middle Schoolers, Journaling Pens

$1.51

Play Instantly! Steel Tongue Drum Starter Kit with Smart Practice App and Full Accessories - Perfect for Personal Use or Gifting

Play Instantly! Steel Tongue Drum Starter Kit with Smart Practice App and Full Accessories - Perfect for Personal Use or Gifting

$338.00

Rubber Cable Protection Ramp Wire Channel Cover Outdoor Ground Crossing

Rubber Cable Protection Ramp Wire Channel Cover Outdoor Ground Crossing

$15.05

Sketch Blending Knife Set for Artists – Highlight, Detail, Shadow Blending Tools with Cotton Swabs, Scrapers, Sponge Tips, and Replacement Heads for Still Life Drawing

Sketch Blending Knife Set for Artists – Highlight, Detail, Shadow Blending Tools with Cotton Swabs, Scrapers, Sponge Tips, and Replacement Heads for Still Life Drawing

$4.20

Wenxin Tang Calligraphy and Painting Felt - Ancient Art Series, Double-Sided Wool Felt with Leather Desk Mat for Calligraphy and Painting, Colorful Soft Stain-Resistant Felt for Brush Writing Practice, Traditional Chinese Painting Supplies

Wenxin Tang Calligraphy and Painting Felt - Ancient Art Series, Double-Sided Wool Felt with Leather Desk Mat for Calligraphy and Painting, Colorful Soft Stain-Resistant Felt for Brush Writing Practice, Traditional Chinese Painting Supplies

$32.30

Construction Backfill Ceramsite Lightweight for Bathroom Garage Roof Base Concrete Roof Sloping Gardening Planting

Construction Backfill Ceramsite Lightweight for Bathroom Garage Roof Base Concrete Roof Sloping Gardening Planting

$430.00

Scented Candle Making Kit - DIY Tools Including Wax Melting Pot, Thermometer, Heating Stove, and Containers

Scented Candle Making Kit - DIY Tools Including Wax Melting Pot, Thermometer, Heating Stove, and Containers

$6.46

Stainless Steel Multi-Function Bathroom Storage Rack - Over-Toilet Shelf with Multi-Layer Floor Standing Cabinet for Washing Machine

Stainless Steel Multi-Function Bathroom Storage Rack - Over-Toilet Shelf with Multi-Layer Floor Standing Cabinet for Washing Machine

$48.98

Variable Frequency Drive Safety Function Module FSO-12 Kit

Variable Frequency Drive Safety Function Module FSO-12 Kit

$9,900.00

Wheel Lug Nuts Compatible with Ford Focus, Kuga, Mondeo, Escort, EcoSport, Everest

Wheel Lug Nuts Compatible with Ford Focus, Kuga, Mondeo, Escort, EcoSport, Everest

$59.50

Cardboard Box Wholesale Taobao No.10/12 Paper Box Packing Hard Small Carton Half-Height Postal Express Packaging Box Custom

Cardboard Box Wholesale Taobao No.10/12 Paper Box Packing Hard Small Carton Half-Height Postal Express Packaging Box Custom

$0.14

New 502 Super Glue Large Bottle, Instant Adhesive for Plastic, Paper, Furniture Repair, ABS, and Hardware

New 502 Super Glue Large Bottle, Instant Adhesive for Plastic, Paper, Furniture Repair, ABS, and Hardware

$5.18

Mushroom Stick Sponge Stamp Painting Set - Rotating Brush and Printing Tool for Kids' Art and Crafts

Mushroom Stick Sponge Stamp Painting Set - Rotating Brush and Printing Tool for Kids' Art and Crafts

$3.32

Yijiayi Plastic Surgery: Eyebrow Transplant, Aesthetic Artistic Brow Planting for Sparse or Missing Brows

Yijiayi Plastic Surgery: Eyebrow Transplant, Aesthetic Artistic Brow Planting for Sparse or Missing Brows

$6,780.00

Biliansheng Hair Transplant – No-Shave Technique for Eyebrows, Beard, Widow's Peak, and Sideburns; Aesthetic Design and Hair Restoration

Biliansheng Hair Transplant – No-Shave Technique for Eyebrows, Beard, Widow's Peak, and Sideburns; Aesthetic Design and Hair Restoration

$2.55

Oil Pastel Blending Stumps and Smudging Tools for Painting, Mixing, and Highlighting

Oil Pastel Blending Stumps and Smudging Tools for Painting, Mixing, and Highlighting

$4.76

Jingyangge Calligraphy Wool Felt Arm Rest Pad, Mini Felt Mat for Chinese Painting, Inkstone Protector, Creative and Exquisite Practice Mat

Jingyangge Calligraphy Wool Felt Arm Rest Pad, Mini Felt Mat for Chinese Painting, Inkstone Protector, Creative and Exquisite Practice Mat

$9.90

Concrete Mixing Plant Gantry Car Wash Platform, Shiji Runde Tunnel-Style Gantry Car Wash Machine

Concrete Mixing Plant Gantry Car Wash Platform, Shiji Runde Tunnel-Style Gantry Car Wash Machine

$20,000.00

Baohong Watercolor Paper Artist Grade 1/2/Full/Half Sheet, Student Grade 300g 100% Cotton Pulp, Rough/Medium/Fine Grain Roll

Baohong Watercolor Paper Artist Grade 1/2/Full/Half Sheet, Student Grade 300g 100% Cotton Pulp, Rough/Medium/Fine Grain Roll

$33.00

Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening

Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening

$1,033.00