Precision Gear Part

The performance comparison of various precision gears is introduced

Precision gear is a kind of mechanical part with teeth that meshes with each other. Widely used in mechanical transmission. There are many kinds of gears, which are usually classified according to their axial characteristics. Generally divided into parallel axis, cross axis and staggered axis three types. Here is a comparison of the performance of various precision gears.

1. Spur gear: a cylindrical gear whose tooth line is parallel to the axis line. Because it is easy to process, it is widely used in power transmission.

2, bevel gear: straight bevel gear is a basic bevel gear, simple processing, but poor transmission accuracy, instantaneous transmission ratio is not accurate, suitable for low speed mechanism.

3. Inner gear: gear that engages with spur gear and has teeth on the inside of the ring. Mainly used in planetary gear drives and gear couplings.

4, bevel gear: bevel gear can be modified on the basis of spur gear, relative to some of the main shortcomings of spur gear have been improved, such as: the instantaneous transmission ratio is relatively accurate to understand some, high accuracy of information transmission, transmission efficiency is significantly higher than the spur gear. Suitable for mechanism with low speed, need to be lubricated.

5, herringbone gear: tooth line for the left and right rotation of two helical gear combination of gear. The advantage of no thrust in the axial direction.

6, zero bevel gear: zero spiral Angle curved bevel gear. Due to the characteristics of spur and curved bevel gears, the stress on the tooth surface is the same as that of spur bevel gears.

7，Hypoid gears: bevel gears that drive between alternate shafts. Small and large gears adopt eccentric machining similar to arc gear, and the meshing principle is complicated.

8, spiral bevel gear: has good efficiency and all aspects of the performance parameters. Its performance is: high transmission efficiency, small friction resistance, accurate instantaneous transmission ratio, transmission torque, especially suitable for high-speed transmission.