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How to produce needle roller bearing?

- Mar 21, 2018 -


The process of processing steel balls also varies according to the state of the raw materials, of which the processes before grinding or polishing may be divided into the following three types, those before heat treatment, and the following two, The whole processing process is as follows: cold punching of rod or wire (some rod materials need to be punched and annealed after cold blanking, rough grinding, soft grinding or smooth ball heat treatment-hard grinding-finishing grinding or grinding-final inspection group-rust prevention, Packaging-Storage Assembly of to be closed sleeve .

The process of roller processing varies according to the raw materials, of which the processes before heat treatment can be divided into the following two types, The whole processing process is as follows: after cold upsetting of rod or wire rod, string ring belt and soft grinding-heat treatment-series soft spot-rough grinding end diameter-finish grinding end surface-fine grinding outer diameter-finish grinding outer diameter-final inspection group-rust-proof, Packaging-- Storage (Assembly of sleeve to be closed).


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