Why can't the slewing ring use elastic washers?

2019-09-29

The slewing bearing is a large bearing that can bear comprehensive loads, and can bear large radial and axial loads and collapse torque together. In China’s industrial production and sales market, the requirements for slewing bearings can often be seen. They are parts of various machinery and equipment. They are good products that are conducive to the stronger work of various machinery and equipment and the development of engineering projects. Therefore, it is generally necessary to master each standard when purchasing a slewing bearing. The following is a specific introduction to the reasons why the slewing ring cannot use the ductile sealing ring.

1. When the slewing ring is connected with bolts and nuts, the regular anchor bolts are high-strength bolts (level 10.9). The key to the high-strength bolt connection is to rely on the strong frictional resistance between the connected parts to resist external forces, so high-strength bolts do not need to be elastic pad.

2. The total contact area of ​​the spring washer is not as large as that of the flat washer. There is no flat washer in the place of high moment force. The anchor bolts have a large moment force (such as the 8.8 level and left and right anchor bolts). Torque) will cause plastic deformation of the supporting point surface near the spring washer. In subsequent use, the expansion torque of the deformation will be "relaxed". For rotating machinery and equipment, the vibration and collapse torque during operation will be relatively large. If the mouth is opened with a tension spring washer, it will increase the vibration crack and cause the deformation of the slewing ring.

3. Appropriate flat washers can increase the total area of ​​the supporting point, and can avoid the extrusion and plastic deformation of the anchor bolt moment formed by the hard and high steel parts, which is beneficial to maintaining the credibility of the moment.

The above is the specific introduction of the reasons why the slewing ring cannot use the ductile sealing ring. The communication starts from the heart, the service items are transmitted with emotion, and beyond the requirements of customers, it is stronger than satisfying. I hope to help you.