RSK-WSD Percision Universal Joint Single type Compact Structure High Rigidity

1.Compact Structure, High Rigidity

2.Higher Transmission Accuracy, No Slip Vibration

3.Reduced Maintenance Points

4.Retains Core Advantages of Universal Joints

The Type RSK-WSD Cross Shaft Universal Joint Coupling is defined within Chinese Machinery Industry Standards  as a "Non-Telescoping Double Cross Shaft Universal Joint Coupling".

Its core design philosophy is: While retaining the large-angle, high-torque transmission capability of heavy-duty cross shaft universal joints, it eliminates the intermediate splined sliding sleeve, shortening and rigidifying the structure for applications where the distance between shaft ends is fixed or axial displacement is minimal.

Key Characteristics:

1.Compact Structure, High Rigidity:

Eliminating the telescoping spline sleeve greatly reduces the axial dimensions, resulting in a more rigid integrated structure with improved torsional stiffness and alignment.

2.Higher Transmission Accuracy, No Slip Vibration:

Eliminates potential axial micro-motion and backlash from the spline pair during torque transmission. Provides more direct power transfer and performs better in applications requiring precise phase control.

3.Reduced Maintenance Points:

Removes the spline pair as a friction point requiring regular lubrication. Only the two cross shaft bearings need lubrication, slightly reducing maintenance workload.

4.Retains Core Advantages of Universal Joints:

Large-Angle Compensation: Maintains the ability for single-joint angular deflection up to 15°-25°.

Heavy-Load Capacity: Inherits the high torque-carrying capability of cross shaft universal joints.

Primary Application Fields

The RSK-WSD type is suitable for heavy-load applications requiring the large angular deflection capability of a universal joint, but where axial space is constrained and axial displacement is strictly limited. Examples include:

Rigid Connection of Main Drive Shafts in Rolling Mills: When the position between the roll chock and the gear housing is fixed by a rigid mill housing.

Marine Steering Gear Drives: Between the tiller and the rudder stock, where angular change is large but axial distance is fixed.

Torque Loading Devices for Large Test Rigs: Requiring high rigidity, large-angle deflection connections.

Steering Drive Axles for Engineering Vehicles: Connecting the differential to the wheel, where space is limited and axial displacement is controlled by the suspension.

Any drive node where axial displacement has already been compensated for elsewhere (e.g., by a crown gear coupling or Oldham coupling), and only angular deflection needs to be addressed at this point.