Slewing support is a very important part in the machine. Basically, every machine needs this part. And because this part is relatively fragile, it can also be regarded as a kind of consumables, we need to buy it regularly. So, how to identify the quality of slewing support?
1. Surface hardness of slewing bearing should not be less than 55HRC, depth of hardening layer should not be less than 4mm, and width of soft band should not be less than 50mm. In the whole process, it should be formulated according to customer's needs.
2. Grinding of slewing support is very important. It is necessary to select suitable grinding wheel to finish grinding, and to strictly control the linear speed so as to avoid the occurrence of raceway burns. Then finish grinding, the resin grinding wheel with particle size of 46 or 60 should be selected to grind. The grinding quantity can not exceed rough grinding, and the smoothness should meet the required grade requirements.
3. Toughness is very important. Slewing support is very thin, so many parts look good, but it will be reimbursed soon when used in the machine. When you first choose, you can check the toughness of slewing support.
In addition to the choice of products, it is also very important to protect the slewing bearings when they are in use. In the operation of the machines, some lubricants can be added from time to time to protect them, which can effectively promote their service life.