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Understanding Cycloidal Gearboxes - Single-stage vs Multi-stage

Resource from:  https://www.powertransmission.com Likes:226
Apr 25,2024

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It's no secret that cycloidal gearboxes are important in mechanical engineering, especially when it comes to precision motion control and efficient power transmission. The gear systems differ from harmonic wave/strain wave gearboxes by using a cycloidal disk and needle bearings to transmit torque with minimum backlash, achieve high reduction ratios, and support substantial loads. This Sumitomo Drive Technologies blog will talk about single-stage and multi-stage cycloidal gearboxes.

Single-Stage Cycloidal Gearboxes

Single-stage cycloidal gearboxes are compact, high-precision devices designed for applications requiring efficient torque transmission and minimal to zero backlash. These gearboxes operate on the principle of a cycloidal disc rotating eccentrically, engaging with pins or rollers to convert input shaft rotation into a slowed output motion.

Design and Operation

Mechanism: At the heart of a single-stage cycloidal gearbox is a cycloidal disc that rotates around an eccentric bearing, engaging with stationary pins on the gearbox housing through rollers. This unique mechanism allows for the efficient transmission of torque with a high reduction ratio in a single stage.

Components: Key components include the cycloidal disc, eccentric cam, needle bearings (or rollers), and the output shaft. The compact arrangement of these components contributes to the gearbox's high load-bearing capacity and robustness.


(https://www.powertransmission.com)
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