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Bevel gears are like the chameleons of the gear world, capable of changing the axis of rotation in diverse ways! Here's a breakdown of these versatile components: What are bevel gears? They are cone-shaped gears that transmit power between intersecting shafts. These shafts can be at various angles, with 90 degrees being the most common. Their teeth also follow the conical shape, angling towards the apex of the cone, allowing them to mesh smoothly. Types of bevel gears: Straight bevel gears: The simplest type, with teeth pointing directly to the cone's apex. Spiral bevel gears: Similar to straight, but teeth curve back on themselves for smoother operation and reduced noise. Hypoid gears: Special bevel gears with shafts offset, allowing for higher gear ratios and greater moment capacity. Crown gears: Bevel gears with 90-degree angles where teeth resemble crown points, often used in car differentials. Key features: Change rotation axis: Unlike spur gears with parallel shafts, bevel gears change the direction of rotation, often by 90 degrees. Varying angles: Can work at different angles, not just 90 degrees, though that's most common. Gear ratios: Typically transmit power at a 1:1 ratio, but can be designed for other ratios too. Applications: Abundant in machinery like car differentials, hand drills, angle grinders, and even clocks. Additional points: Bevel gears can be made from various materials like steel, plastic, and nylon, depending on the application. They come in different sizes and tooth profiles to suit diverse needs. Understanding bevel gears is crucial for anyone working with machinery that involves changing rotation axes.

Spiral bevel gear.

Helical gear.

Helical gear.

Straight beval gear.

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