Production steps of bearing sleeves

Update:26-11-2021
Summary:

1. Forging: The toughness and strength of the ferrule w […]

1. Forging: The toughness and strength of the ferrule will be reduced if overburning, overheating, internal cracking into a network of carbides are produced during the forging process. Therefore, it is necessary to strictly control the processing temperature, cyclic heating and heat dissipation conditions after forging (such as spray cooling), etc., especially after the final forging of larger varieties of ferrules, the temperature is above 700 ℃, and shall not be stacked.

2. Heat treatment: close monitoring of heat treatment equipment is an important job in the workshop. Monitor the reliability of the equipment. Important temperature control instruments such as instruments and thermocouples must be closely monitored to ensure that the measurement data is accurate and reliable; those with excessive errors must be replaced in time, and running with diseases is strictly prohibited.

3. Monitoring of grinding process. The finished imported bearing rings are not allowed to have grinding burns and grinding cracks, especially on the mating surface of the inner ring screwdriver. If the ferrule is pickled, it should be fully inspected to remove the burned product. If it is severely burned, it cannot be repaired or if it is unqualified, it should be scrapped. Ferrules with grinding burns are not allowed to enter the assembly process.

4. Marking management. After the steel is put into storage and before the ferrule is ground, each process must be strictly managed, and the two different materials and products of GCR15 and GCR15SIMN must be strictly distinguished.

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