Skip to main content
Home / Couplings / 45 Steel XL Star Coupling Plum Coupling Jaw-Type High-Torque Elastic Motor Connector

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material 45# Steel
Coupling Type Jaw-Type Star (Plum)
Size Series XL
Torque Capacity High-Torque
Elastic Element Polyurethane Spider
Surface Treatment Black Oxide Coating
Misalignment Compensation Angular and Parallel
Operating Temperature -30°C to +80°C
Application Motor to Pump/Compressor
Installation Method Keyway with Set Screws

6 reviews

A

Anonymous

Mar 26, 2026

Rating: 5/5

Great value for money

Compared to other brands, this offers better material quality at a competitive price. The black oxide finish also provides good corrosion resistance in our workshop environment.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect fit for our industrial pump

We replaced an old worn-out coupling with this XL star model. The 45 steel construction feels very robust, and the alignment was straightforward. It has been running smoothly for three weeks without any vibration issues.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, slightly heavy

The build quality is excellent and the torque capacity is exactly what we needed for our conveyor motor. It is a bit heavier than expected, but that speaks to the durability of the steel used.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Reliable for high load applications

Using this in a high-torque environment. So far, no signs of wear on the jaws or the elastic insert. Just make sure to torque the set screws correctly during installation.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Excellent vibration damping

The elastic spider element does a great job absorbing shocks. Our previous metal-to-metal coupling caused too much noise; this one runs quietly and efficiently.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Fast shipping and solid product

Ordered this for a urgent repair on a packaging machine. Arrived quickly and the dimensions matched our specs perfectly. Very satisfied with the purchase.

5 FAQ

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

A: Yes, the package includes the 45 steel hubs and the polyurethane elastic spider insert pre-installed or packed together.

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

A: Inspect the spider periodically for cracks, deformation, or excessive wear. If you notice increased vibration or backlash in the system, it is time to replace the insert.

Q: Is the keyway standard DIN or ANSI?

A: Our standard manufacturing follows DIN 6885 for keyways, but we can accommodate ANSI standards upon request for bulk orders.

Q: What is the maximum bore size available for the XL series?

A: The XL series typically supports bore sizes up to 60mm, but please check the specific technical drawing in the product manual for exact tolerances.

Q: Can this be used in outdoor environments with rain exposure?

A: While the black oxide coating offers some protection, we recommend additional shielding or regular maintenance if used in direct, continuous rain to prevent long-term rusting.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Loose Aquamarine Beads - Gemstone Bracelet Components Including Amber, Southern Red Agate, Gold Rutilated Quartz, Ice-Grade Devil Blue Donghai Crystal

Loose Aquamarine Beads - Gemstone Bracelet Components Including Amber, Southern Red Agate, Gold Rutilated Quartz, Ice-Grade Devil Blue Donghai Crystal

$6.72

Mia Sketch Blending Stump Set for Highlights and Shadows, Professional Art Supplies Including Paper Blenders, Makeup Sponges, and Cotton Tips for Still Life Drawing

Mia Sketch Blending Stump Set for Highlights and Shadows, Professional Art Supplies Including Paper Blenders, Makeup Sponges, and Cotton Tips for Still Life Drawing

$4.00

Custom Tactical Waterproof and Shockproof Knife Box - EDC Carry Case for Folding Knives, Headphones, Data Cables, and Tools

Custom Tactical Waterproof and Shockproof Knife Box - EDC Carry Case for Folding Knives, Headphones, Data Cables, and Tools

$21.99

Wang Xizhi's Hundred-Rhyme Song of Cursive Script - Taipei Palace Museum Edition Hardcover High-Definition Replica Decorative Art Print

Wang Xizhi's Hundred-Rhyme Song of Cursive Script - Taipei Palace Museum Edition Hardcover High-Definition Replica Decorative Art Print

$32.90

Used Car Tires – Sizes: 205/55, 185/65 R15, 215/225/235, 195 R15/R16/R17/R18/R19

Used Car Tires – Sizes: 205/55, 185/65 R15, 215/225/235, 195 R15/R16/R17/R18/R19

$264.00

Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

$3,299.00

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

$660.00

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

$119.64

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

$21.96

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

$312.70

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

$8.88

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

$3.28

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

$802.30

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

$12,899.00

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

$16.80

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

$54.00

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

$4.80

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

$755.00

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

$17.00

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

$39.20

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

$7,972.00

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

$49.60

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

$658.00

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

$127.00

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

$2.72

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

$7,999.00

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

$72.00

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

$41.00

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

$25.00

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

$136.00