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This is a Content Analysis study.

September 20, 2025Open Access

Wear and Thermal Management in Cycloidal Reducers: A Patent Analysis

FRFederico RotiniUniversity of Florence LFLorenzo FiorineschiUniversity of Florence

Key Points

Wear and overheating can significantly reduce the efficiency and lifespan of cycloidal systems, increasing maintenance costs.
Preventive strategies for wear mainly focus on friction reduction using rolling elements as a solution.
The research identifies various strategies from patent literature, reporting that compensative methods predominantly utilize lubrication.
Mitigative strategies are noted to be rare, focusing on reshaping to restore contact surfaces and reduce wear.

Abstract

Wear and overheating in cycloidal systems significantly affect motion transmission efficiency, component lifespan, and maintenance costs. Numerous solutions have been proposed in the patent literature to address these issues. This paper identifies, analyzes, and classifies these solutions based on their working principles, strategies (Preventive, Compensative, Mitigative), and implementation methods. The results indicate that preventive strategies are predominant, mainly through friction reduction achieved via rolling elements. Compensative strategies rely on lubrication, while mitigative strategies, though rare, involve restoring contact surfaces through reshaping. This review serves as a comprehensive reference for the development of new solutions in the field.

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