Inspection items for small batch production gears (for reference)

The inspection items of small batch production gears: the inspection items of contact accuracy, motion accuracy, tooth backlash and working stability. The specific instructions are as follows, for reference.

1. Inspection items for contact accuracy

Tooth direction tolerance:

The maximum allowable error between the actual tooth direction and the theoretical tooth direction within the total length of the tooth on a cylinder passing through the middle of the tooth height.

2. Inspection items of motion accuracy

Ring gear radial runout tolerance and common normal length variation tolerance are the basic inspection items.

3. Inspection items for tooth flank clearance

The minimum deviation of the common normal length and the common normal length tolerance:

To ensure backlash,gearThe smallest difference between the length of the nominal common normal is greater than the actual length of the common normal.

4. Test items for work stability

Tooth profile tolerance:

In the working part of the tooth, the maximum allowable normal distance between two theoretical tooth shapes that actually accommodate the tooth shape.

Base section upper deviation and lower deviation:

The maximum tolerance and minimum tolerance between the actual distance between two parallel tangents on two adjacent tooth sides with the same name on the gear and the nominal base section.

There are many inspection items for gears, which are selected according to different inspection purposes, production scales and equipment conditions. Small batch production usually uses single inspection method and some of the above inspection items, while mass production usually uses comprehensive inspection method.

The above is the relevant description of the inspection items for small batch production gears. If there are any unclear points or related requirements, you can apply to EP gear Free consultation.