PRODUCTS
CONTACT US
45# Steel XL Star Jaw Coupling – Clamp Type Flexible Coupling for Servo Motors & CNC Lathes | ROTEX / Lovejoy Replacement | Custom Factory
Model Number
Check below, custom
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
45# Steel XL Star Jaw Coupling – ML Type Flexible Coupling for Air Compressor & Servo Motor
Factory Direct from Guangdong, China | 45# Round Steel Hubs | Polyurethane Elastic Spider | Zero Backlash | High Torque | Set Screw & Clamp Types | -35°C to +80°C | Custom Bores & Keyways
Product Overview
The 45# Steel XL Star Jaw Coupling from Apexcoupling is a high-precision flexible shaft coupling designed for accurate torque transmission, vibration damping, and reliable operation in demanding industrial applications. Manufactured in Guangdong, China, this ML type star coupling is widely used in air compressors, servo motors, pumps, and general industrial drives.
The coupling features 45# round steel (carbon steel) hubs with a black oxide (blackening) finish for excellent corrosion and wear resistance. The polyurethane elastic spider provides effective cushioning, shock absorption, and compensation for axial, radial, and angular misalignments. The star-shaped structural design ensures stable power transmission with strong impact resistance and good toughness.
Available in both set screw type and clamp type, this coupling offers flexible installation options to suit different shaft configurations. The precision machining process ensures minimal dimensional error, tight assembly fit, and compatibility with a wide range of mechanical equipment. With zero backlash and high torque capacity, the XL star coupling delivers reliable performance even under frequent start-stop and reversing conditions.
The coupling operates in temperatures from -35°C to +80°C, making it suitable for a wide range of environments. As a factory direct manufacturer, we support custom bores, keyways, non-standard bore lengths, and drawing/sample-based production. Backed by ISO certification and IP65 protection, this coupling is built for reliable, long-term performance.
📧 Get a Quote: ella@apexcoupling.com
Key Attributes
| Attribute | Value |
|---|---|
| Brand | Apexcoupling |
| Model | XL Star Jaw Coupling |
| Coupling Type | Star / Jaw Coupling |
| Standard | GB |
| Material | 45# Round Steel (Carbon Steel) |
| Elastic Element Material | Polyurethane |
| Vibration Damping | Not Supported |
| Max Speed | 311 rpm (model dependent) |
| Bore Diameter | 6 mm |
| Compensation Type | Axial |
| Rated Torque | 10000 N·m |
| Surface Treatment | Black Oxide (Blackening) |
| Customizable Dimensions | Inner Bore Optional |
| Protection Level | IP65 |
| Diameter | 6 mm |
| Maintenance Interval | 453 hours |
| Installation Method | Clamp Type / Set Screw Type |
| Inner Diameter | 6 mm |
| Axial Deviation Compensation | 6 mm |
| Wheel Body Material | Aluminium Bronze |
| Hub Material | 45# Steel |
| Place of Origin | Mainland China |
| Certification | ISO |
| Overload Protection | Not Supported |
Product Specifications
| Parameter | Details |
|---|---|
| Name | XL Star Elastic Jaw Coupling |
| Model | XL / ML Type |
| Hub Material | 45# Round Steel (Carbon Steel) |
| Elastic Spider Material | Polyurethane |
| Working Temperature | -35°C to +80°C |
| Customization | Non-standard bore, non-standard keyway, custom bore length, drawing/sample-based production |
| Product Types | Set Screw Type / Clamp Type |
Key Features
| Feature | Benefit |
|---|---|
| 45# Round Steel Hubs | High-strength steel with precision machining – robust and durable structure |
| Polyurethane Elastic Spider | Excellent flexibility, shock absorption, and vibration damping |
| Zero Backlash | High-precision fit ensures accurate transmission and precise positioning |
| High Torque Capacity | Reliable power transmission for demanding industrial applications |
| Star-Shaped Structural Design | Reasonable design ensures stable power transmission and strong impact resistance |
| Good Toughness & Buffering | Protects connected components from shock and overload damage |
| Excellent Wear Resistance | Special surface treatment effectively reduces friction loss and extends equipment service life |
| Minimal Dimensional Error | High-precision manufacturing process ensures tight assembly fit and compatibility |
| Set Screw & Clamp Types | Flexible installation options to suit different shaft configurations |
| Wide Temperature Range | -35°C to +80°C – suitable for various environments |
| ISO Certified | Quality assurance and international interchangeability |
| Factory Direct | Competitive pricing and stable supply from China |
Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | XL Star Elastic Jaw Coupling |
| Brand | Apexcoupling |
| Type | Star / Jaw Coupling |
| Standard | GB |
| Material | 45# Round Steel |
| Elastic Element | Polyurethane |
| Rated Torque | 10000 N·m |
| Max Speed | 311 rpm (model dependent) |
| Bore Diameter | 6 mm (customizable) |
| Inner Diameter | 6 mm (customizable) |
| Diameter | 6 mm (customizable) |
| Compensation Type | Axial |
| Axial Deviation Compensation | 6 mm |
| Working Temperature | -35°C to +80°C |
| Surface Treatment | Black Oxide (Blackening) |
| Installation Method | Clamp Type / Set Screw Type |
| Protection Level | IP65 |
| Maintenance Interval | 453 hours |
| Overload Protection | Not Supported |
| Certification | ISO |
| Place of Origin | Guangdong, China |
Product Details
01. High-Strength Steel with Precision Machining
The coupling is made from selected high-quality 45# round steel with precision machining, ensuring a robust and durable structure suitable for demanding applications.
02. Excellent Wear Resistance
The surface undergoes special treatment to effectively reduce friction loss, extend equipment service life, and maintain stable performance over time.
03. Stable Transmission with Star-Shaped Design
The star-shaped structural design is reasonable and ensures stable power transmission with strong impact resistance and good toughness buffering to protect connected components.
04. Minimal Dimensional Error
High-precision manufacturing processes ensure tight assembly fit and compatibility with a wide range of mechanical equipment.
05. Zero Backlash & High Torque
The precision fit between the hubs and spider eliminates backlash, providing accurate transmission and high torque capacity for demanding applications.
06. Polyurethane Elastic Spider
The polyurethane elastic element provides excellent flexibility, effective shock absorption, and compensation for axial, radial, and angular misalignments.
07. Wide Temperature Range
With a working temperature range of -35°C to +80°C, this coupling is suitable for a wide variety of industrial environments.
Customization Options
Apexcoupling offers extensive customization for XL star jaw couplings:
Custom bore diameters and lengths
Non-standard keyways and bore lengths
Keyway, hexagon, square, and spline bores
Alternative materials: 45# steel, stainless steel, aluminium
Alternative spider materials: PU, NBR, Hytrel, EPDM
Surface treatments: black oxide, zinc plating, nickel plating
Drawing/sample-based production
OEM / ODM / OBM with your branding
📧 Send your drawing or requirements to: ella@apexcoupling.com
Applications
The 45# steel XL star jaw coupling is widely used in:
Air Compressors – Reliable power transmission for compressor drives
Servo Motors – Precision motion control systems
Pumps – Centrifugal pumps, water pumps, hydraulic pumps
Packaging Machinery – High-speed packaging and filling lines
Printing Machinery – Registration and tension control systems
CNC Machine Tools – Lathes, milling machines, and machining centers
Automation Equipment – Factory automation, robotics, and conveyors
Wind Power Generation – Turbine and generator drives
Heavy Machinery – Industrial drives and equipment
General Industrial Drives – Where reliable flexible coupling is required
Why Choose Apexcoupling?
🏭 Factory Direct in Guangdong, China – Integrated manufacturing and trading, competitive pricing
🔩 Premium 45# Round Steel – High strength, wear resistance, and durability
🧵 Polyurethane Elastic Spider – Excellent cushioning, vibration damping, and misalignment compensation
⚙️ Zero Backlash & High Torque – Precise transmission for demanding applications
📐 Full Customization – Custom bores, keyways, bore lengths, and materials
🔧 Set Screw & Clamp Types – Flexible installation options
✅ ISO Certified & IP65 – Quality assurance and environmental protection
📦 Fast Delivery – Factory stock and efficient production for urgent orders
💬 Expert Technical Support – We help you select the correct coupling for your application
Get a Quote Today
Ready to order or need more information? Contact us directly:
📧 Email: ella@apexcoupling.com
We reply within 24 hours with pricing, availability, and technical recommendations.
Product Tags: XL star jaw coupling, 45# steel star coupling, ML type jaw coupling, air compressor coupling, servo motor jaw coupling, zero backlash coupling, polyurethane spider coupling, set screw jaw coupling, clamp type jaw coupling, Apexcoupling
| Model | Type | Outer Diameter (mm) | Length (mm) | Bore Range (mm) |
|---|---|---|---|---|
| XL0 | Standard | 30 | 35 | 6–16 |
| XL1 | Standard | 40 | 66 | 6–19 |
| XL2 | Standard | 55 | 78 | 8–24 |
| XL3 | Standard | 65 | 90 | 8–28 |
| XL4 | Standard | 80 | 114 | 10–38 |
| XL5 | Standard | 95 | 126 | 10–42 |
| XL6 | Standard | 105 | 140 | 10–48 |
| XL7 | Standard | 120 | 160 | 15–55 |
| XL8 | Standard | 135 | 185 | 15–65 |
| XL9 | Standard | 160 | 210 | 20–75 |
| XL10 | Standard | 200 | 245 | 30–90 |
| XL11 | Standard | 225 | 270 | 30–115 |
| XL12 | Standard | 255 | 295 | 40–125 |
| XL13 | Standard | 290 | 340 | 40–145 |
| XL14 | Standard | 320 | 375 | 40–160 |
| XL15 | Standard | 370 | 425 | 60–180 |
| XL1 | Clamping | 40 | 66 | 10–22 |
| XL2 | Clamping | 55 | 78 | 8–28 |
| XL3 | Clamping | 65 | 90 | 12–38 |
| XL4 | Clamping | 80 | 114 | 12–45 |
| XL5 | Clamping | 95 | 126 | 14–50 |
| XL6 | Clamping | 105 | 140 | 15–55 |
| XL7 | Clamping | 120 | 160 | 20–70 |
| XL8 | Clamping | 135 | 185 | 22–75 |
| XL9 | Clamping | 160 | 210 | 35–85 |
| XL10 | Clamping | 200 | 245 | 40–105 |
Note: Non-standard customization is available — please contact customer service. All dimensions are in millimeters.
45# steel star coupling
air compressor coupling
servo motor jaw coupling
zero backlash coupling
polyurethane spider coupling
set screw jaw coupling
clamp type jaw coupling
Product Show
XL star jaw coupling
