Updated: 07.11.2026
In brief: How loud a roller shutter is does not depend on the motor alone. Loose adapters, a worn bearing or a poorly fixed shaft often transmit noise into the box and the wall. A correctly sized motor with properly seated adapters runs much more quietly.
Typical sources of noise
| Noise | Possible cause |
|---|---|
| Clicking with every revolution | Adapter (crown/drive) loose or not matching the shaft |
| Humming through the wall | Motor bracket fixed directly to the masonry without decoupling |
| Squeaking | Counter bearing or guide rails |
| loud start-up | Motor significantly oversized |
What to look for when buying
- Choose the right torque – not significantly more than needed. Help: Roller shutter motor calculator.
- Suitable adapters for the existing shaft, see Octagonal shaft.
- Electronic motors again A-OK AM45 radio approach the end positions gently and stop on resistance.
Frequently asked questions
Is a 35 mm motor quieter than a 45 mm motor?
Not generally. The right size, torque and installation are decisive.
Does lubrication help?
An Gegenlager und Führungsschienen manchmal ja, am gekapselten Rohrmotor nicht.
All guides on roller shutter, awning and external venetian blind motors: Sun protection guide.
Advice on the right motor
Send us the shaft diameter, curtain size and material – we will name the right A-OK motor. Phone 040 50694631 (Mon–Fri 8 am–5 pm) or via the Contact form. All motors at a glance: Sun protection motors.
Technically reviewed by Dietmar Heiken, Sales, Vent Systems HDI GmbH, Hamburg – around 20 years of industry experience. Questions? Phone +49 40 50694631 or info@ventsystems.de
Last updated: 07.11.2026
