There are 13 accuracy levels of gears, arranged in the order from low to high using the numbers 0 to 12, with level 0 being the highest and level 12 being the lowest. Gear accuracy refers to a grade classified by the comprehensive error of gear shape, which includes some important parameters such as tooth shape, tooth direction and diameter jump.

1、Tooth shape: refers to the radial shape of the tooth.

2, tooth direction: refers to the longitudinal shape of the tooth.

3、Diameter jump: refers to the error of the distance between two adjacent teeth.

Gear accuracy is mainly to control the accuracy of transmission between gears during operation, such as: the smoothness of transmission, instantaneous speed fluctuation, if there is alternating reverse operation, whether the tooth side clearance reaches the minimum, if there is impact load, the accuracy should be slightly improved, so as to reduce the damage brought to the gear by impact load.

Gear accuracy grade selection, should be based on the transmission of the purpose, use conditions, transmission power, circumferential speed, performance indicators or other technical requirements to determine.

Different mechanical transmission recommended gears using the accuracy level is described below for reference only, specific product selection can be free advice to the manufacturers together.

Different mechanical transmission recommended gears using precision grade description

Different accuracy grade gear products using the processing technology difference description.

1、Accuracy grade DIN6: quenching / high frequency quenching of tooth surface / tooth surface grinding / four-face grinding

2、Accuracy class DIN7: tempering/tooth surface finish milling/four-side grinding

3、Accuracy class DIN8：Qualification/tooth surface finish milling/four-side finish milling

4、Accuracy class DIN9: Quenching / high frequency quenching of tooth surface / precision milling of tooth surface / four-face grinding

5、Accuracy DIN10：Qualification/tooth surface high frequency quenching/tooth surface finish milling/four surface finish milling

Guangdong together with the transmission - is a 10 years + precision gear processing custom brand manufacturers, products include spur gears, helical gears, gear shafts, etc., model specifications are complete. If you are not sure about the accuracy level of gears, please click the consultation window on the right for free consultation.