WSS Telescopic Universal Joint Coupling – Sliding/Needle Bearing, 22.4-560 N·m, 4000 RPM

Factory Direct | 40Cr Alloy Steel | Sliding Bearing (1000 RPM) or Needle Bearing (4000 RPM) | 45° Angle Per Joint | H7 Bore | Telescopic Design | Center Slider Hardened 45-50 HRC | Pins Carburized 50-55 HRC | Low Noise | Long Service Life | OEM Customizable

The Apexcoupling WSS series is a high-precision telescopic universal joint coupling engineered for reliable power transmission in applications requiring both angular misalignment compensation and axial length adjustment. Featuring a 40Cr alloy steel construction with precision-machined joints, this coupling delivers smooth, jam-free rotation with low noise and long service life. Available with sliding bearing (up to 1000 RPM) or needle roller bearing (up to 4000 RPM), the WSS series offers flexibility for a wide range of industrial applications. The telescopic design allows for axial length adjustment, while the 45° limit angle per joint accommodates significant angular misalignment. With H7 finished bores, hardened center sliders (45-50 HRC), and carburized pins (50-55 HRC) , the WSS series is the ideal solution for packaging machinery, woodworking equipment, multi-spindle drills, metallurgical machinery, and general automation.

✅ Telescopic design – compensates axial displacement. Sliding bearing (1000 RPM) or needle bearing (4000 RPM). 45° angle per joint. 40Cr alloy steel – high strength and durability. Center slider hardened 45-50 HRC, pins carburized 50-55 HRC. Low noise, smooth rotation, long service life.

Key Technical Specifications

🔧 Custom lengths, bores, keyways, hexagon/square holes, and special materials (304/316 stainless steel) available. For keyway options, add “K” after the shaft diameter (e.g., CPHP01-23-12K×12K-160+30). Contact us with your specifications.

WSS Series – Model Range & Specifications

📐 Additional sizes and custom dimensions available upon request. Contact our engineering team for custom sizing.

CPHP Series – Model Range (Telescopic with Keyway)

📐 CPHP01/11 = sliding bearing (1000 RPM). CPHP21/31 = needle bearing (4000 RPM).

Model Designation – CPHP Series

CPHP01-23-12×12-160+30

Keyway Option: Add “K” after the shaft diameter.

• Example: CPHP01-23-12K×12K-160+30 – both bores with keyways

Product Structure

1. Two Yokes (Forks) – Precision-machined from 40Cr alloy steel with H7 bores.

2. Cross Shaft (Cross Axis) – The central component that transmits torque.

3. Telescopic Spline Shaft – Allows axial length adjustment (travel S).

4. Center Slider – Hardened 45-50 HRC for wear resistance.

5. Pins – Carburized & quenched 50-55 HRC for durability.

6. Bearing Options – Sliding bearing (1000 RPM) or needle roller bearing (4000 RPM).

7. Optional Dust Boot – Protects the joint from dust and contamination.

💡 How it works: The WSS telescopic universal joint consists of two yokes connected by a cross shaft, with a telescopic spline shaft between them that allows axial length adjustment. The center slider and pins are hardened for wear resistance, ensuring smooth, jam-free rotation with low noise. The sliding bearing version is suitable for speeds up to 1000 RPM, while the needle bearing version allows speeds up to 4000 RPM. The angle between the two shafts is allowed to change within a limited range (up to 45° per joint) according to working needs.

Bearing Selection – Sliding vs Needle Roller

⚠️ Note: It is recommended to use the coupling at ≤50% of the maximum rated speed for optimal service life.

Product Features & Advantages

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 WSS Telescopic Universal Joints?

FAQ

Q: What is the difference between sliding bearing and needle bearing versions?
A: Sliding bearing (CPHP01/11) – max speed 1000 RPM, higher torque capacity. Needle bearing (CPHP21/31) – max speed 4000 RPM, lower friction, maintenance-free.

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 is the telescopic travel?
A: Telescopic travel (S) ranges from 30mm to 65mm depending on the model. Custom travels available on request.

Q: What materials are available?
A: Standard is 40Cr alloy steel. We also offer 304 and 316 stainless steel for corrosion-resistant applications.

Q: What is the bore tolerance?
A: Standard finished bore tolerance is H7 for precision shaft fit.

Q: What bore types are available?
A: We offer keyway (add “K”), hexagon hole (add “F”), square hole (add “S”), and spline hole (add “H”) .

Q: What is the hardness of the center slider and pins?
A: The center slider is quenched to 45-50 HRC. The pins are carburized and quenched to 50-55 HRC.

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 lengths, bores, keyways, materials, and finishes available.

Q: What is the recommended operating speed?
A: It is recommended to use the coupling at ≤50% of the maximum rated speed for optimal service life.

Request a Quote

Send us your model (e.g., WSS4, CPHP21), bore size, length, travel, bearing type, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.