2019年2月22日星期五

The inspection of one-way bearing for washing machine

Although the outer cup of the clutch is accurately drawn from strip steel, it can go slightly out of round during heat treatment. When the assembly is pressed into a ring gage or properly prepared housing of correct size and wall thickness, it becomes round and properly sized. Direct measurement of the outside diameter of a drawn cup assembly is an incorrect procedure. The proper inspection procedure is as follows:
1. Press the assembly into a ring gage of the proper size.
2. Gage the bore with the specified plug gages of the proper size.
- The locking plug is rotated to insure lockup when the clutch is operated at low limit shaft and is mounted in a high limit housing strong enough to properly size the clutch. 
- The overrun plug is rotated to ensure free over-running when the clutch is operated on a high limit shaft and is mounted in a low limit housing. 
- The go plug and no go plug insure proper size of the bearings in the clutch and bearing assemblies.
If you want to know more about bearings, please visit www.zys-bearings.com or send email to zysdong@gmail.com.