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KTR Rotex GS 38 Jaw Coupling – High Precision Flexible Shaft Coupling

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KTR Rotex GS 38 Coupling offers precise, zero-backlash torque transmission with high vibration damping and compact installation.

Product Highlights

  • Coupling Size: GS 38
  • Outer Diameter: 80 mm
  • Inner Diameter: 38 mm
  • Overall Length: 114 mm
  • Material: Aluminium Hub
  • Clamping Hub Length: 45 mm
  • Distance E: 24 mm
  • Bore Range: Ø12 mm to Ø38 mm
  • Max Torque Capacity: Up to 405 Nm
  • Spider Hardness Options: 64 ShD, 72 ShD, 92 ShA, 98 ShA
  • Clamping Screw Type: M8
  • Tightening Torque: 25 Nm
  • Backlash-Free: Yes
  • Applications: automation, CNC systems, industrial control, robotics, servo drives
  • Check Mark Estimated Delivery : Up to 4 business days
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The KTR Rotex GS 38 Coupling is a high-performance, backlash-free jaw-type coupling engineered for precision motion control applications. It features a compact plug-in design, capable of absorbing misalignments and dampening vibrations. Manufactured with high-grade aluminium hubs and a polyurethane spider, the GS 38 ensures quiet and reliable torque transmission, ideal for automation systems, servo drives, and CNC machinery. This coupling is maintenance-free, with zero backlash, enabling exact positioning and superior mechanical efficiency.

Coupling Size

GS 38

Outer Diameter

80 mm

Inner Diameter

38 mm

Overall Length

114 mm

Material

Aluminium Hub

Clamping Hub Length

45 mm

Distance E

24 mm

Bore Range

Ø12 mm to Ø38 mm

Max Torque Capacity

Up to 405 Nm

Spider Hardness Options

64 ShD, 72 ShD, 92 ShA, 98 ShA

Clamping Screw Type

M8

Tightening Torque

25 Nm

Backlash-Free

Yes

Applications

automation, CNC systems, industrial control, robotics, servo drives

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