Gear Classification
Published Time:
2025-06-30
Spur gear: A cylindrical gear with teeth parallel to the axis, widely used. Helical gear: A cylindrical gear with helical teeth, capable of withstanding higher loads and running more quietly.
Gears can be classified by tooth shape, gear shape, tooth profile, the surface on which the teeth are located, and manufacturing method. Here are some common gear types:
Spur gears: Cylindrical gears with teeth parallel to the axis, widely used.
Helical gears: Cylindrical gears with helical teeth, capable of withstanding higher loads and running more quietly.
Herringbone gears: Gears with left-hand and right-hand helical teeth, eliminating lateral forces on the shaft.
Internal gears: Cylindrical gears with teeth on the inside of the cylinder, meshing with spur gears.
Spur rack: A linear gear that meshes with spur gears.
Helical rack: A linear gear that meshes with helical gears.
Face gear: A pseudo-bevel gear that limits the shaft angle to 90°, with conical teeth pointing towards its center.
Spur bevel gear: A gear with conical teeth, and a generatrix (base line) in the same direction as the cone section.
Helical bevel gear: A bevel gear with helical teeth having a helix angle.
Worm gear and worm: A worm gear set is the name for a meshing worm and worm gear, used to transmit motion and torque between spatially intersecting shafts.
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