Skip to main content
Home / Couplings / ERSIID Aluminum Alloy Stepped Single/Double Coupling Stepper Motor High Torque Servo Motor Ball Screw Elastic

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Single/Double Diaphragm Stepped
Application Stepper & Servo Motors, Ball Screws
Torque Capacity High Torque Transmission
Flexibility Elastic Compensation for Misalignment
Precision Level High Precision Zero Backlash
Surface Finish Anodized Corrosion Resistance
Operating Temperature -20°C to 80°C
Mounting Style Clamp-Type Hub Connection
Compatibility Universal Fit for Standard Shaft Sizes

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect fit for my CNC upgrade

These couplings are exactly what I needed for my ball screw setup. The aluminum alloy feels robust, and the stepped design made installation incredibly easy. No vibration issues so far.

A

Anonymous

Mar 29, 2026

Rating: 5/5

High torque handling

I was worried about slippage under high load, but this coupling holds firm. The elastic properties absorb shocks well, protecting my servo motor. Highly recommended for industrial applications.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Smooth operation

Installed these on my 3D printer gantry. The motion is noticeably smoother compared to the old rigid couplers. The anodized finish also looks very professional.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Solid construction

Good value for money. The clamp mechanism is strong and doesn't damage the shafts. It handles the torque of my NEMA 23 motors without any hesitation.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Excellent precision component

As an engineer, I appreciate the tight tolerances. There is virtually no backlash, which is critical for my positioning system. Will definitely order more for future projects.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Great quality, fast shipping

Very precise manufacturing. The double diaphragm provides excellent flexibility for minor misalignments. Took off one star only because the instructions were a bit sparse, but the product itself is top-notch.

5 FAQ

Q: Can this handle axial misalignment?

A: Absolutely. The double diaphragm design is specifically engineered to compensate for axial, radial, and angular misalignments effectively.

Q: What is the maximum RPM rating for this model?

A: This aluminum alloy coupling is rated for up to 4000 RPM, making it suitable for most high-speed servo applications.

Q: Does it work with metric and imperial shafts?

A: We stock versions for both metric and imperial shaft diameters. Please select the specific combination you need from the dropdown options at checkout.

Q: Is special grease required for installation?

A: No special grease is needed. The unit comes pre-lubricated where necessary. Just ensure the shafts and hubs are clean before tightening the clamps.

Q: Does this coupling come in different bore sizes?

A: Yes, we offer various bore size combinations to fit standard stepper and servo motor shafts. Please check the selection menu or contact us for custom sizing.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Safety Self-Locking Lifting Hook with Adjustable Chain for Hoisting and Rigging

Safety Self-Locking Lifting Hook with Adjustable Chain for Hoisting and Rigging

$140.00

Thickened Mobile Phone Waterproof Case, Waterproof Box, Sealed Container, Pressure-Resistant Box, EDC Drop-Proof Storage Box for Outdoor Travel

Thickened Mobile Phone Waterproof Case, Waterproof Box, Sealed Container, Pressure-Resistant Box, EDC Drop-Proof Storage Box for Outdoor Travel

$12.00

Commercial Heated Display Cabinet for Crispy Pork Belly, Roast Chicken, and Cantonese BBQ - Constant Temperature Warmer for Peking Duck

Commercial Heated Display Cabinet for Crispy Pork Belly, Roast Chicken, and Cantonese BBQ - Constant Temperature Warmer for Peking Duck

$1,394.00

Mejiang Baohong Watercolor Line Art for Beginners, Coloring Book with Colored Pencils and Markers, Cat Letter Theme

Mejiang Baohong Watercolor Line Art for Beginners, Coloring Book with Colored Pencils and Markers, Cat Letter Theme

$29.70

Shanghai Huamei Hair Transplant, Solution for Hair Loss, Thinning, and Density Enhancement

Shanghai Huamei Hair Transplant, Solution for Hair Loss, Thinning, and Density Enhancement

$6,750.00

New Direct Sale Nanda Silicone Rubber 704 Battery Fixative Adhesive Panel Light Special Glue Photovoltaic Solar Sealant

New Direct Sale Nanda Silicone Rubber 704 Battery Fixative Adhesive Panel Light Special Glue Photovoltaic Solar Sealant

$25.85

Yonghe Hair Transplant: Top Scalp Density Enhancement (2000+ Units Fixed Price)

Yonghe Hair Transplant: Top Scalp Density Enhancement (2000+ Units Fixed Price)

$33,800.00

No-Drill Bathroom Storage Rack – Toilet Paper Organizer for Dorms and Restrooms

No-Drill Bathroom Storage Rack – Toilet Paper Organizer for Dorms and Restrooms

$22.16

Premium Metallographic Polishing Cloth – White Short-Pile Velvet for Mirror Finish Grinding by Goral

Premium Metallographic Polishing Cloth – White Short-Pile Velvet for Mirror Finish Grinding by Goral

$35.00

Rock Guitar Hell Training: Electric Guitar Textbook and Tutorial by Shinichi Kobayashi, Beginner to Intermediate Chinese Guitar Book and Sheet Music

Rock Guitar Hell Training: Electric Guitar Textbook and Tutorial by Shinichi Kobayashi, Beginner to Intermediate Chinese Guitar Book and Sheet Music

$58.69

Aromatherapy Candle Resin Jelly Wax Strawberry Silicone Mold, Large Squishy Handmade Soap DIY Material

Aromatherapy Candle Resin Jelly Wax Strawberry Silicone Mold, Large Squishy Handmade Soap DIY Material

$1.90

Liboer Drill-Free Security Camera Mount & Router Shelf – Adhesive-Free Wall Bracket for 360 PTZ Cameras and Sockets

Liboer Drill-Free Security Camera Mount & Router Shelf – Adhesive-Free Wall Bracket for 360 PTZ Cameras and Sockets

$21.90

City Hunter Theme Song Mr. Chui Saxophone Three-Piece Precise Transcription Service

City Hunter Theme Song Mr. Chui Saxophone Three-Piece Precise Transcription Service

$16.00

[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle

[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle

$38.00

Handcrafted Peach Wood and Brass Baby Rattle - Non-Toxic Paint-Free Teething Toy for Infants

Handcrafted Peach Wood and Brass Baby Rattle - Non-Toxic Paint-Free Teething Toy for Infants

$32.00

Car Tire Stone Removal Hook - Debris Cleaning Tool for Wheels

Car Tire Stone Removal Hook - Debris Cleaning Tool for Wheels

$6.19

Ceramic Rabbit Egg Holder – Creative Irregular Egg Stand for Breakfast or as a Decorative Gift

Ceramic Rabbit Egg Holder – Creative Irregular Egg Stand for Breakfast or as a Decorative Gift

$33.82

Toilet Tank Side Shelf Bathroom Storage Rack No-Drill Organizer for Bathroom Essentials

Toilet Tank Side Shelf Bathroom Storage Rack No-Drill Organizer for Bathroom Essentials

$10.40

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

$8.90

Artsneak Blending Stump for Oil Pastels, Dual-Tip Sponge Brush Art Student Painting Tool Set, Washable and Crumb-Free

Artsneak Blending Stump for Oil Pastels, Dual-Tip Sponge Brush Art Student Painting Tool Set, Washable and Crumb-Free

$14.20

75X100 Imitation Inkjet Transfer Steel Plate for Date Coding - Custom Logo and Trademark Available

75X100 Imitation Inkjet Transfer Steel Plate for Date Coding - Custom Logo and Trademark Available

$38.00

Lint-Free Cloth 1009DLE/SLE - Straight/Net Weave for UV Printhead, Screen, Lens Cleaning, Industrial Wiping Cloth

Lint-Free Cloth 1009DLE/SLE - Straight/Net Weave for UV Printhead, Screen, Lens Cleaning, Industrial Wiping Cloth

$10.80

Pirelli PZ4 Tires, Sizes 235/245/255/265/285/40/45/50/55 R19/R20/R21/R22

Pirelli PZ4 Tires, Sizes 235/245/255/265/285/40/45/50/55 R19/R20/R21/R22

$350.00

Wooden Plaque Carved Signboard for Business Opening, Antique-Style Shop Entrance Header, Custom Engraved Solid Wood Couplets MWU

Wooden Plaque Carved Signboard for Business Opening, Antique-Style Shop Entrance Header, Custom Engraved Solid Wood Couplets MWU

$182.96

Kumho ES01 Car Tires: Sizes 155/165/175/185/205 with Aspect Ratios 55/60/69 and Rim Diameters 14/15/16/17

Kumho ES01 Car Tires: Sizes 155/165/175/185/205 with Aspect Ratios 55/60/69 and Rim Diameters 14/15/16/17

$458.00

Mont Marte Paint Brushes, Creative Children's Painting Brush Set (3 Pieces), Tempera Brush Kit for Kids

Mont Marte Paint Brushes, Creative Children's Painting Brush Set (3 Pieces), Tempera Brush Kit for Kids

$6.50

Baohong Watercolor Paper 300g 8K/4K - Wood Pulp A1/A3/K3 350g Fine/Coarse Grain for Watercolor and Oil Pastels 4K

Baohong Watercolor Paper 300g 8K/4K - Wood Pulp A1/A3/K3 350g Fine/Coarse Grain for Watercolor and Oil Pastels 4K

$4.00

Imported IK7 Linear Bearing LM 162837 203242 254059 304564 3552O0 UU

Imported IK7 Linear Bearing LM 162837 203242 254059 304564 3552O0 UU

$96.00

Used Car Tires Auto Salvage Tires 155 165 175 185 195 205 215 1U3 14 15 16

Used Car Tires Auto Salvage Tires 155 165 175 185 195 205 215 1U3 14 15 16

$202.00

Magnetic Charging Stand for MIJIA Smart Audio Glasses (Enjoyment Edition) & Jiehuan AI Glasses – Wireless Installation for Type 86 Box

Magnetic Charging Stand for MIJIA Smart Audio Glasses (Enjoyment Edition) & Jiehuan AI Glasses – Wireless Installation for Type 86 Box

$84.10