The Oldham Coupling MOCT-A Aluminium
Backlash-free, axially plug-in and balanced
The MOCT Oldham coupling is ideal for precise, cyclical positioning tasks and for stepper motor applications. It consists of two structurally balanced aluminium hubs and an electrically insulating transmission disc. Its three-part design allows for convenient plug-in assembly, even in hard-to-reach installation conditions. The strength of this backlash-free Oldham coupling lies in its ability to compensate for radial misalignment with minimal restoring forces. This compensation is achieved through pure translational movements between the hubs and the polyacetal transmission disc. The careful machining and finishing process of the clamping hubs ensures maximum efficiency and service life of the cross-slider coupling.
Product features
- Axially pluggable
- Lightweight, balanced aluminium clamping hubs
- Compensation of high radial misalignments (up to 5,7 mm depending on size)
- Backlash-free torque transmission
- Electrically insulating
- Outer diameter range from 19.1 to 57,2 mm
- Nominal torque range from 2,25 to 42,5 Nm
- Bore diameters from 4 to 30 mm
- Cross discs made of acetal
- Optionally available as a set screw version (MOST)
Balanced clamping hubs
The clamping hubs are made of aluminium and are also statically balanced. This additional feature ensures smooth running even at higher speeds.
Finishing process for maximum service life with minimal return forces
The combination of the proprietary hub machining process and the high-quality surface coating (black oxide layer: anodised to MIL-A-8625 Type II, Class 2 and ASTM B580 Type B) ensures perfect interaction between the clamping hub and the transmission disc thanks to the smooth surfaces. The resulting optimised coefficient of friction minimises wear on the moving parts and maximises efficiency and service life.The high-performance, durable oxide coating offers further technical advantages:
- Generated heat is efficiently absorbed
- The protective barrier prevents damage caused by moisture, UV rays, chemicals or other particles present in the environment
