Skip to main content
Home / Couplings / Aluminum Alloy Spider Coupling, Servo Motor Ball Screw CNC Lathe Elastic Star Jaw Coupling

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Spider Jaw (Star) Coupling
Application Servo Motors, Ball Screws, CNC Lathes
Flexibility Elastic Damping Element
Torque Capacity High Torque Transmission
Misalignment Compensation Angular, Parallel, and Axial
Operating Temperature -30°C to +80°C
Surface Finish Anodized for Corrosion Resistance
Maintenance Maintenance-Free Operation
Origin Standard Designed to German Industrial Standards

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect fit for my CNC retrofit

Installed this on a servo motor driving a ball screw. The alignment tolerance is excellent, and vibration has been significantly reduced. Highly recommended for precision machinery.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Exactly what I needed

Bought this for a custom 3D printer build using lead screws. It handles the reverse motion smoothly without backlash issues. Very satisfied with the purchase.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Robust and reliable

We use these in our production line lathes. They handle high torque without slipping and the elastic element absorbs shocks well. Great quality for the price.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Good value, fast shipping

The coupling works as expected. The aluminum finish is clean and the bore sizing was accurate. Took off one star because the installation manual could be more detailed.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Industrial grade quality

Using these in harsh workshop environments. The anodized coating holds up well against coolants and chips. A solid choice for any machine shop.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Superior damping characteristics

Replaced a rigid coupling with this spider type to reduce noise. The difference is night and day. The star element provides just the right amount of flexibility.

5 FAQ

Q: How do I know when the elastic element needs replacement?

A: Inspect the star element periodically for cracks, deformation, or wear. If you notice increased vibration or noise during operation, it is time to replace the insert.

Q: What is the maximum angular misalignment this can compensate for?

A: This specific model can typically compensate for up to 1.5 degrees of angular misalignment, depending on the specific bore size and load conditions.

Q: Can I use this with a stepper motor instead of a servo motor?

A: Absolutely. While optimized for servo applications, this coupling works perfectly with stepper motors provided the torque and shaft diameter requirements are met.

Q: Is the bore size customizable or only standard metric sizes?

A: We stock standard metric bore sizes. For non-standard or inch-sized bores, please contact our sales team for custom machining options.

Q: Does this coupling come with the elastic spider insert included?

A: Yes, the package includes the aluminum hubs and the pre-installed elastic star jaw insert ready for assembly.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Blue Scale Line Printing Machine Pad with Ruler Markings for Water-Based Ink Printing

Blue Scale Line Printing Machine Pad with Ruler Markings for Water-Based Ink Printing

$80.00

Sponge Drain Rack for Kitchen Countertop - No-Drill Sink Organizer for Cloths and Narrow Edge Faucet Storage

Sponge Drain Rack for Kitchen Countertop - No-Drill Sink Organizer for Cloths and Narrow Edge Faucet Storage

$5.80

Kids' Art Round Sponge Stamp Brush for Kindergarten DIY Crafts, Mushroom Head Painting Tool

Kids' Art Round Sponge Stamp Brush for Kindergarten DIY Crafts, Mushroom Head Painting Tool

$3.59

Caiyan Art Blending Stumps for Oil Pastels and Sketching – Washable EVA Tips for Smooth Color Transition; Non-Staining, Ideal for Art Students

Caiyan Art Blending Stumps for Oil Pastels and Sketching – Washable EVA Tips for Smooth Color Transition; Non-Staining, Ideal for Art Students

$6.50

Paper Blending Stump Set for Sketching, Oil Pastels, and Highlighting – Ultra Soft

Paper Blending Stump Set for Sketching, Oil Pastels, and Highlighting – Ultra Soft

$3.83

Tire Stone Removal Hook with Built-in Screwdriver - Multi-Function Tool for Tire Cleaning, Window Breaking, and Self-Defense

Tire Stone Removal Hook with Built-in Screwdriver - Multi-Function Tool for Tire Cleaning, Window Breaking, and Self-Defense

$8.90

Blower Motor Compatible with Hummer H3, Hummer H2, and Cadillac Escalade

Blower Motor Compatible with Hummer H3, Hummer H2, and Cadillac Escalade

$340.00

Custom Fertilizer Integration Machine for Agriculture and Landscaping - Smart Quantitative Mobile Filtration System

Custom Fertilizer Integration Machine for Agriculture and Landscaping - Smart Quantitative Mobile Filtration System

$1,960.00

High-Speed Cell Sieve with Handle - Stainless Steel Laboratory Sieves (100, 200, 300, 400, 600 Mesh)

High-Speed Cell Sieve with Handle - Stainless Steel Laboratory Sieves (100, 200, 300, 400, 600 Mesh)

$61.74

Stainless Steel Food Warmer for Hotels and Breakfast Buffets - Commercial Flip-Top Chafing Dish with Insulation; Compatible with Induction Cookers

Stainless Steel Food Warmer for Hotels and Breakfast Buffets - Commercial Flip-Top Chafing Dish with Insulation; Compatible with Induction Cookers

$1,288.00

Marie's Blending Stumps Set for Sketching and Shading, Professional Art Supplies for Students

Marie's Blending Stumps Set for Sketching and Shading, Professional Art Supplies for Students

$2.55

National Standard JB/ZQ4606-86 Felt Oil Seal Ring - Bearing Oil Absorption, Dustproof, Industrial Wool Felt Gasket Strip

National Standard JB/ZQ4606-86 Felt Oil Seal Ring - Bearing Oil Absorption, Dustproof, Industrial Wool Felt Gasket Strip

$0.50

Qingzhu Sketching Eraser Knife and Paper Stump Tool Set for Art Students - Includes Replacement Tips, Gray Surface Pens, Makeup Sponge Blenders, Cotton Swabs, Foam Balls, Soft Blending Pens, Precision Insert Knives, and Sketch Eraser Balls

Qingzhu Sketching Eraser Knife and Paper Stump Tool Set for Art Students - Includes Replacement Tips, Gray Surface Pens, Makeup Sponge Blenders, Cotton Swabs, Foam Balls, Soft Blending Pens, Precision Insert Knives, and Sketch Eraser Balls

$7.20

4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck

4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck

$52.50

Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case

Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case

$3,573.50

Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart

Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart

$842.00

Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making

Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making

$5.54

Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar

Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar

$17.70

Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book

Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book

$7.65

Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available

Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available

$15.00

Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding

Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding

$12.47

Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques

Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques

$50.00

Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

$329.00

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

$38.00

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

$4.25

French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)

French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)

$33.10

Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing

Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing

$720.00

Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater

Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater

$10,000.00

Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging

Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging

$29.00

Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type

Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type

$17,600.00