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clutch plate working principle

What is the principle of operation of clutch and brake plates (discs)?

Category : BLOG

Clutch and brake plates are used to transfer torque from the driving part to the driven part of the device. Clutch plates are placed in clutches or brakes, which, depending on the way the plate pack is compressed, are divided into: electromagnetic, mechanical, hydraulic and pneumatic. In overload clutches, the plates are compressed by springs. Their friction surfaces can be covered with metal-ceramic sinter or covered with organic linings in order to change the operating temperature, dynamic characteristics, and the amount of transmitted torque.

What types of clutch and brake plates (discs) are there?

Due to the method of cooling and lubrication, they are divided into plates for operation in oil and for dry operation. Metalworking machines use inserts made of hardened steel. In order to shorten the time of disengaging clutches and brakes, internal or external plates are „waved” or expansion springs are mounted on them.

clutch working principle

Dry running brake discs are installed in brakes to brake rotating machine parts as well as in self-braking motors. In order to increase the braking torque, double-disc brakes are also made. After using special materials and housings, they can operate in explosion-hazardous zones.

The plates and discs are appropriately shaped to transfer the torque, e.g., from the shaft to the driver. The most commonly used form-fitting (sliding) joints are splined and toothed.

When and how to replace the clutch plates?

Each clutch plate is subject to natural wear over time and must be replaced. It is worth contacting a professional company e.g., MultiMasz that will easily select the appropriate plates, replace them, set them properly and adjust the gap in accordance with the requirements and technical characteristics of a given clutch. Please remember that any unprofessional interference in the disassembly of the clutch or brake may cause its failure and generate additional costs, including the need to purchase a completely new clutch.

Be sure to also check how to choose the right clutch for a lathe.


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