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Abstract: This research paper presents a comparative analysis of different pressure angles in spiral bevel gears to determine their impact on performance and durability in off-highway vehicle applications, particularly in industries such as construction, mining, and agriculture. Through theoretical modeling, finite element analysis (FEA), and experimental testing, we investigate how varying pressure angles—specifically 20°, 22.5°, and 25°—influence key performance indicators such as load distribution, stress concentration, and wear characteristics under diverse operational conditions. Our findings indicate that higher pressure angles enhance load-carrying capacity and reduce gear size but introduce higher stress levels, potentially compromising gear durability. Conversely, lower pressure angles improve durability but may result in increased gear size and reduced load capacity. The optimization process involves balancing these trade-offs to identify the most suitable pressure angle for specific applications. This research provides comprehensive guidelines for selecting pressure angles in spiral bevel gears, aiding in the design of more robust and efficient transmission systems for off-highway vehicles, thereby benefiting gear manufacturers and designers in enhancing operational efficiency and lifespan.
C Karthik (Fri,) studied this question.