WX/WXD High Torque Precision Universal Joint Coupling – Single/Double Joint, 42CrMo Steel, H7 Bore

Factory direct | 42CrMo alloy steel, quenched & tempered | Keyway + set screw | Up to 45° angle per joint

The WX (single joint) and WXD (double joint) series are high torque precision universal joint couplings designed for heavy‑duty power transmission with large angular compensation. Made of 42CrMo alloy steel with H7 precision bore, they offer low backlash, low noise, and long service life. An extendable (sliding) version is also available for variable length requirements.

✅ Ideal for applications where shafts are not collinear and require up to 45° angular misalignment.

Key Technical Specifications

🔧 Custom bores, lengths, keyway sizes, and telescopic versions available – contact us with your drawing.

Product Advantages

Product Features

✅ 42CrMo Alloy Steel – Quenched & Tempered for Durability

• High strength and toughness after heat treatment

• Excellent resistance to fatigue and multiple impacts

• Withstands high torque and shock loads

• Wear‑resistant, long service life

✅ Large Angle Compensation – Up to 45° Per Joint

• Single joint (WX) allows up to 45° angular misalignment

• Double joint (WXD) allows both angular and parallel offset

• Smooth power transmission even at steep angles

✅ H7 Bore Precision + Keyway & Set Screw Locking

• H7 tolerance ensures high concentricity and precise shaft fit

• Keyway + set screw provides positive drive, no slipping

• Also available: round, hex, square bores

✅ Low Backlash, Low Noise, High Transmission Accuracy

• Tight internal clearance between cross shaft and bearings

• Smooth rotation in all directions

• Ideal for precision positioning applications

✅ Two Bearing Options for Different Speed Requirements

✅ Single Joint (WX) vs Double Joint (WXD)

✅ Extendable (Telescopic / Sliding) Version

• Allows axial length adjustment during operation or for easy installation/removal

• Perfect for applications with thermal expansion or variable spacing

• Custom splined or sliding fit design

✅ Versatile Bore & Mounting Options

• Round bore + keyway + set screw (standard)

• Hex bore (for quick disconnect or manual adjustment)

• Square bore (for agricultural or special applications)

• Quick locking mechanism available on request

Applications

• General industrial machinery

• Packaging machinery

• Printing presses

• Woodworking equipment

• Textile machinery

• Agricultural implements

• Conveyor systems

• Machine tool auxiliary drives

• Steel mill roll drives

• Paper machinery

• Any application requiring large angle transmission with moderate torque

Why Choose Apex Coupling for WX/WXD Universal Joints?

FAQ

Q: What is the difference between WX and WXD?
A: WX is a single universal joint – for angular misalignment only (up to 45°). WXD is a double universal joint – allows both angular misalignment and parallel offset, providing smoother motion for offset shafts.

Q: What is the maximum working angle?
A: Each joint can operate up to 45° limit angle. For continuous operation, we recommend ≤40° to maximize bearing life.

Q: What bearing types are available and what speeds can they handle?
A:

• Sliding bearing – max 1000 rpm, suitable for heavy loads, shock absorption

• Needle bearing – max 4000 rpm, suitable for high speed, smoother rotation

Q: Can I get a telescopic (extendable) version?
A: Yes. We offer an extendable/sliding type that allows length adjustment. Please specify your required stroke and torque when ordering.

Q: What bore types are available?
A: Standard is round bore with keyway + set screw. We also offer hex bore, square bore, and plain round bore without keyway. Custom bores accepted.

Q: Is the coupling suitable for reversing loads?
A: Yes. The keyway + set screw locking and precision fit ensure no backlash under forward/reverse rotation.

Q: What torque range is available?
A: The WX/WXD series covers 11.2 N·m to 1120 N·m. The 20.1 N·m value is typical for a smaller model. Contact us for your specific torque requirement.

Request a Quote

Send us your torque, speed, angle, shaft diameters, required length, and bore type. We will reply within 24 hours with a quotation and dimension drawing.

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