According to what conditions can you select the bowl group bearing?

When planning and manufacturing overturned bearings, the bearing materials are generally selected according to the following principles.

1、 Select the bearing according to the working nature of the bearing.

1. Operating temperature

The customized products of the mountain bike bowl set bearings use chromium bearing steel to work at normal temperature. Chromium bearing steel is also used when the operating temperature is more than 1500 ℃ and less than 250 ℃, but special heat treatment is required (200 ℃ or 300 ℃ quenching is required).

2. The size of the impact load.

The bearings bearing strong impact load generally do not use chromium bearing steel, but use high-quality nitrided structural steel Impact resistant tool steel or quenched and tempered structural steel.

3. Touching substances

Bearings commonly used for corrosive substances must be made of corrosion-resistant steel or carbon steel with strong corrosion resistance.

2、 Select according to the structural characteristics of the bearing.

The structure of bearing components is complex, for example, when the bearing is equipped with a retaining edge and bears a high impact load, the customized products of the road vehicle bowl set bearing should be made of carburized steel with good processing performance; 08 and 10 low carbon steel can be used to press the outside of needle roller bearing (good plasticity, suitable for cold stamping); The spherical plain bearing used in the shaking mechanism or operating mechanism can use the spherical plain bearing GCr15.9Cr18.9Cr8Mo with excellent cold plastic deformation performance and the cold extrusion of alloy tool steel.

3、 Select according to the requirements of bearing fatigue life and reliability

The price of the bowl group bearing manufacturer is not low, so the fatigue life and stability of the bearing depend on the purity and management uniformity of the steel to a certain extent. In general applications, ordinary bearing steel is often smelted in acidic open hearth or alkaline electric furnace. With the continuous improvement of smelting methods, current remelting and vacuum smelting are formed. The service life of bearings made of bearing steel made by the above methods, such as ion beam furnace smelting, is also improved. It is applicable to bearings with special requirements for fatigue life and reliability, such as railway vehicle axle box bearings, aircraft spindle bearings and navigation system bearings.

In addition, the machinability of steel should also be fully considered when selecting steel grades Supply and domestic resources.