Article codes
1Coupling for motion control
Cross-Joint Type Flexible Coupling (XUT)
Compact cross-joint coupling with high torsional stiffness, minimal backlash and symmetric CW/CCW characteristics for servo and stepper drives.
- Cross joint type
- Stepper motor
- Servo motor
- Vibration absorption
- High torsional rigidity
When is a cross-joint coupling better than a slit or disc coupling?
Choose a cross-joint coupling like the NBK XUT when you need high torsional stiffness and identical clockwise and counter-clockwise behaviour with only minimal backlash. A precision pin-and-bush cross joint transmits torque while compensating angular, parallel and axial misalignment with small reaction forces on shafts and bearings. It suits stepper and servo motors where compact size and rotational accuracy matter.
Features
- Excellent torsional stiffness
- Minimal backlash through high-precision pin-and-bush fit
- Identical clockwise and counter-clockwise characteristics
- Excellent vibration absorption
- Low shaft load from misalignment reduces stress on the shaft
Overview
The XUT cross-joint shaft coupling is available in one design (XUT-C). It focuses on high torsional stiffness and high torque, making it well suited to a range of motors including stepping and servo motors.
Working principle
Two hubs are connected by a central cross joint with precision pins and low-friction bushes, forming a compact, almost backlash-free mechanism. Torque passes through the pin-and-bush system, which allows controlled sliding to compensate angular, parallel and axial misalignment with minimal reaction forces on shafts and bearings.
The rigid yet flexible design ensures high torsional stiffness and stable rotational accuracy. Various sizes and material configurations meet different load capacities and application requirements.
Attachment types
The XUT is available as a clamping type (C).
- Type
- Cross-joint type
- Outside Ø range
- Ø15 – 40 mm
- Bore diameter
- 3 – 20 mm
- Rated torque
- 0.3 – 6 Nm
- Hub material
- Aluminium
- Motor type
- Applicable for all motors
Ready to specify this coupling?
Send us your bore, torque, speed and environment. Our engineers in Dedemsvaart match the right article code and quote it.