What Are the Types of Gears?
1 Answers
The types of gears are as follows: 1. Classification by tooth profile: The tooth profile of a gear includes the tooth curve, pressure angle, tooth height, and modification. Involute gears are easier to manufacture, so they account for the vast majority of gears used today, while cycloidal and circular arc gears are less commonly used. In terms of pressure angle, gears with a smaller pressure angle have lower load-bearing capacity, whereas gears with a larger pressure angle, although capable of higher load-bearing, increase the bearing load under the same torque transmission conditions, making them suitable only for special applications. The tooth height of gears is standardized, with standard tooth height generally adopted. Modified gears offer many advantages and are widely used in various mechanical equipment. 2. Classification by gear shape: Gears can also be categorized by their shape into spur gears, bevel gears, non-circular gears, racks, and worm gears. 3. Classification by tooth line shape: Gears can be divided into straight gears, helical gears, herringbone gears, and curved gears based on the shape of the tooth line. 4. Classification by tooth surface location: Gears can be classified as external gears or internal gears based on the location of the teeth. 5. Classification by manufacturing method: Gears can be categorized into cast gears, cut gears, rolled gears, sintered gears, etc., depending on the manufacturing method.
