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WX/WXD Small Cross Universal Joint Coupling – Single/Double, 11.2-1120 N·m, 45° Angle
Model Number
Check below, custom
- Phone : +86 13431039760
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- Email : ella@apexcoupling.com
Product Description
WX/WXD Small Cross Universal Joint Coupling – Single/Double, 11.2-1120 N·m, 45° Angle
Factory Direct | 40Cr alloy steel | Single (WXD) or double (WX) | 45° angle per joint | H7 bore | 11.2–1120 N·m torque | 1000–4000 RPM | Keyway/hex/square hole options | OEM/ODM/OBM
The Apexcoupling WX/WXD series is a precision small cross universal joint coupling manufactured to the JB/T5901-1991 standard. Available in single joint (WXD) and double joint (WX) configurations, it is designed for reliable power transmission between two shafts on the same plane with an angular misalignment of up to 45° per joint. Constructed from 40Cr alloy steel with optional 304/316 stainless steel, the series delivers high strength, excellent wear resistance, and long service life. Featuring H7 precision bore with keyway, hexagon, or square hole options, the WX/WXD series is the ideal solution for packaging machinery, woodworking equipment, multi-spindle drills, metallurgical machinery, and general automation applications.
✅ JB/T5901-1991 standard – quality assured. Single (WXD) or double (WX) joint. 45° angle per joint. 40Cr alloy steel or 304/316 stainless steel. H7 bore with keyway/hex/square options. 11.2–1120 N·m torque. 4000 RPM max speed. OEM custom available.
Key Technical Specifications
| Parameter | WXD Type (Single) | WX Type (Double) |
|---|---|---|
| Standard | JB/T5901-1991 | JB/T5901-1991 |
| Structure | Single universal joint | Double universal joint |
| Nominal Torque Range | 11.2 – 1120 N·m | 11.2 – 1120 N·m |
| Maximum Angle Per Joint | 45° (limit) / 30° (recommended) | 45° (limit) / 30° (recommended) |
| Max Speed (Pin/Block) | 1000 RPM | 1000 RPM |
| Max Speed (Needle Bearing) | 4000 RPM | 4000 RPM |
| Bore Tolerance | H7 | H7 |
| Bore Options | Keyway, hexagon hole, square hole | Keyway, hexagon hole, square hole |
| Body Material | 40Cr alloy steel (standard); 304/316 stainless steel (optional) | 40Cr alloy steel (standard); 304/316 stainless steel (optional) |
| Surface Treatment | Black oxide, natural, nickel plated, chrome plated, sandblasted | Black oxide, natural, nickel plated, chrome plated, sandblasted |
| Customized support | OEM, ODM, OBM | OEM, ODM, OBM |
| Applicable Industries | Packaging machinery, woodworking, multi-spindle drills, metallurgy, CNC, automation | Packaging machinery, woodworking, multi-spindle drills, metallurgy, CNC, automation |
| Place of Origin | Guangdong, China | Guangdong, China |
🔧 Custom bores, keyways, hexagon/square holes, materials (304/316 stainless steel), and special finishes available. Large semi-finished stock – fast delivery. Contact us with your specifications.
WX/WXD Series – Model Range & Specifications (JB/T5901-1991)
| Model | Nominal Torque (N·m) | d max (mm) | D (mm) | L (mm) | L1 (mm) | L2 (mm) | L3 (mm) | L4 (mm) | Moment of Inertia (WXD) | Moment of Inertia (WX) |
|---|---|---|---|---|---|---|---|---|---|---|
| WX1 / WXD1 | 11.2 | 10 | 16 | 22 | 30 | 60 | 80 | 20 | 0.05 | 0.07 |
| WX2 / WXD2 | 22.4 | 12 | 20 | 22 | 32 | 64 | 90 | 26 | 0.09 | 0.15 |
| WX3 / WXD3 | 45 | 14 | 25 | 27 | 40 | 80 | 112 | 32 | 0.15 | 0.22 |
| WX4 / WXD4 | 71 | 18 | 32 | 30 | 46 | 92 | 130 | 38 | 0.32 | 0.49 |
| WX5 / WXD5 | 140 | 22 | 40 | 38 | 58 | 116 | 164 | 48 | 0.59 | 0.91 |
| WX6 / WXD6 | 280 | 28 | 50 | 44 | 69 | 138 | 196 | 58 | 1.03 | 1.64 |
| WX7 / WXD7 | 560 | 35 | 60 | 60 | 91 | 182 | 252 | 70 | 2.31 | 3.38 |
| WX8 / WXD8 | 1120 | 42 | 75 | 84 | 122 | 244 | 336 | 92 | 4.41 | 6.63 |
📐 Additional sizes and custom dimensions available upon request. Contact our engineering team for custom sizing.
WX (Double) vs WXD (Single) – Which One Do You Need?
| Feature | WXD (Single Joint) | WX (Double Joint) |
|---|---|---|
| Angular misalignment | ✅ Up to 45° | ✅ Up to 45° per joint |
| Parallel offset | ❌ No | ✅ Yes |
| Total articulation | Up to 45° | Up to 90° |
| Length | Shorter | Longer |
| Moment of inertia | Lower | Higher |
| Best for | Shafts intersecting at an angle on the same plane | Shafts both angled and offset |
Rule of thumb:
Use WXD (single joint) for applications with constant angular misalignment.
Use WX (double joint) for applications requiring parallel offset compensation or smoother motion at higher angles.
💡 The angle between the two shafts is allowed to change within a limited range according to working needs.
Bearing Selection – Pin/Block vs Needle Roller
The WX/WXD series offers two bearing options:
| Bearing Type | Max Speed | Dynamic Load Capacity | Best For |
|---|---|---|---|
| Pin/Block (Sliding) | 1000 RPM | Good | Low-speed, high-torque, shock absorption |
| Needle Roller | 4000 RPM | High | High-speed, smooth rotation, precision applications |
⚠️ Note: It is recommended to use the coupling at ≤50% of the maximum rated speed for optimal service life.
Product Features & Advantages
| Advantage | Benefit |
|---|---|
| 40Cr Alloy Steel | High strength, excellent toughness, and fatigue resistance – quenched and tempered for durability |
| 304/316 Stainless Steel Option | Corrosion-resistant – ideal for food & beverage, chemical, and outdoor applications |
| 45° Angle Per Joint | Large angular compensation – accommodates significant misalignment |
| Double Joint (WX) Capability | Up to 90° total articulation – handles both angular and parallel offset |
| H7 Precision Bore | High concentricity, accurate shaft fit – reduces vibration |
| Multiple Bore Options | Keyway, hexagon, square – choose your connection type |
| Two Bearing Options | Pin/block (1000 RPM) or needle roller (4000 RPM) |
| Multiple Surface Finishes | Black oxide, natural, nickel plated, chrome plated, sandblasted |
| Large Semi-Finished Stock | Fast delivery for standard and custom orders |
| JB/T5901-1991 Standard | Manufactured to established Chinese national standard |
| OEM Customization | Custom bores, materials, and finishes available |
Applications
Packaging Machinery – Conveyors, wrapping machines, carton sealers
Woodworking Machinery – Multi-spindle drills, routers, saws
Multi-Spindle Drills – Precision drilling operations
Metallurgical Equipment – Rolling mills, continuous casting lines
CNC Machines – Feed drives, positioning systems
Printing Equipment – Register control, high-speed operation
Textile Machinery – Spinning, weaving equipment
FA Automation – Pick-and-place systems, indexing tables
General Industrial Machinery – Pumps, mixers, conveyors
Why Choose Apex Coupling for WX/WXD Universal Joints?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| JB/T5901-1991 Standard | Manufactured to established Chinese national standard – quality assured |
| Premium 40Cr Steel | High strength, toughness, and fatigue resistance |
| 304/316 Stainless Steel Option | Corrosion-resistant for demanding environments |
| Single or Double Joint | One product family covers all angular and offset needs |
| Two Bearing Options | Pin/block (1000 RPM) or needle roller (4000 RPM) |
| H7 Precision Bore | High accuracy, low backlash, reliable operation |
| Multiple Bore Options | Keyway, hexagon, square – fully customizable |
| Multiple Finishes | Black oxide, nickel, chrome, sandblasted |
| Large Semi-Finished Stock | Fast delivery for standard and custom orders |
| OEM Customization | Custom bores, materials, and finishes available |
FAQ
Q: What is the difference between WX and WXD?
A: WXD is a single universal joint – for angular misalignment only. WX is a double universal joint – allows both angular misalignment and parallel offset, with up to 90° total articulation.
Q: What is the maximum operating angle?
A: Each joint can operate up to 45° limit angle. For continuous operation, we recommend ≤30°.
Q: What bearing options are available?
A: Pin/block (sliding) bearing – up to 1000 RPM. Needle roller bearing – up to 4000 RPM.
Q: What is the torque range?
A: The standard series covers 11.2 – 1120 N·m. Custom higher torque is available on request.
Q: What materials are available?
A: Standard is 40Cr alloy steel. We also offer 304 and 316 stainless steel.
Q: What bore types are available?
A: We offer keyway, hexagon hole, square hole, and plain round hole.
Q: What is the bore tolerance?
A: Standard finished bore tolerance is H7.
Q: What are the common applications?
A: Packaging machinery, woodworking equipment, multi-spindle drills, metallurgy, CNC machines, and general automation.
Q: Can I get a custom coupling?
A: Yes. We offer OEM customization – custom bores, materials, and finishes available.
Q: What is the warranty?
A: 1 Year – quality assured.
Request a Quote
Send us your configuration (WXD single or WX double), bore type, bore size, torque, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.
| Model | Type | Outer Diameter (mm) | Length (mm) | Inner Diameter (mm) | Weight (g) |
|---|---|---|---|---|---|
| WXD1 | Single | 16 | 60 | 10 | 10 |
| WXD2 | Single | 20 | 64 | 12 | 10 |
| WXD3 | Single | 25 | 80 | 14 | 10 |
| WXD4 | Single | 32 | 92 | 18 | 10 |
| WXD5 | Single | 40 | 116 | 22 | 10 |
| WXD6 | Single | 50 | 138 | 28 | 10 |
| WXD7 | Single | 60 | 182 | 35 | 10 |
| WXD8 | Single | 75 | 244 | 42 | 10 |
| WX1 | Double | 16 | 80 | 10 | 10 |
| WX2 | Double | 20 | 90 | 12 | 10 |
| WX3 | Double | 25 | 112 | 14 | 10 |
| WX4 | Double | 32 | 130 | 18 | 10 |
| WX5 | Double | 40 | 164 | 22 | 10 |
| WX6 | Double | 50 | 196 | 28 | 10 |
| WX7 | Double | 60 | 252 | 35 | 10 |
| WX7* | Double | 75 | 336 | 42 | 10 |
Product Show
Single double universal joint
