Description
Timing pulley J4 RH-5AH for Mitsubishi RH-5AH and RH-6SH
The timing pulley J4 RH-5AH is the original spare part for the fourth axis of the Mitsubishi SCARA robots RH-5AH and RH-6SH. This timing pulley J4 RH-6SH is a central component in the drive train of the J4 rotary axis and works together with the timing belt to control the rotary motion of the tool flange. Without an intact timing pulley, precise tool orientation is not possible.
Technical details
- Location: Mitsubishi RH-5AH / RH-6SH, axis J4
- Type: timing pulley
- Version: new / original spare part
- Compatible with RH-5AH and RH-6SH SCARA robots
Discontinuation
Mitsubishi has discontinued this series – now only available in limited quantities worldwide. The RH-5AH and RH-6SH robots are widely used in electronics manufacturing and assembly automation. Spare parts are becoming increasingly scarce – secure the components you need in good time.
Retrofit & maintenance service
Alongside spare parts, ROBTEC also offers retrofit and maintenance services for your Mitsubishi robots. For a J4 axis service, we recommend replacing the timing belt and timing pulley at the same time for optimal running performance.
Contact us via our contact form – we will be happy to advise you and deliver from our stock.
Safeguarding production with a spare parts stock
An unplanned stoppage of your Mitsubishi robot quickly costs several thousand euros per hour. With a timing belt in stock, you reduce the downtime to a minimum. ROBTEC delivers this timing belt tested and ready for immediate use – so that your production is up and running again as quickly as possible.
Quality promise
- Original spare part from the manufacturer Mitsubishi
- Tested and functional – ready for immediate installation
- Fast shipping – usually delivered within 1–3 working days
- Technical advice from experienced robotics engineers
Service and advice
Not sure whether this part fits your robot? Our technical team will help you identify and select the right spare part. Contact us via our contact form or by phone.
Alongside spare parts, ROBTEC also offers maintenance, retrofit and repair for Mitsubishi industrial robots. We take care of the regular servicing of your entire robot fleet.








