Needle Roller Bearings 16/18/41/46/63/68.2x4 mm Loose High Carbon Chromium Cylindrical Pin SUJ2 20Pcs Parallel Pins(4x41mm PIN 20PC)

BearingsHigh precision fast speed long life.Needle Roller PIN Types and FeaturesSUJ2 JIS \u200bhigh carbon chromium bearing steel this product adopts Japan SUJ2 bearing special steel full hard HRC58-61 has the wear resistance of the bearing and strengthens the thimble steel workability the flat tip can be directly processed and used the mold is higher than SKD -61 (HRC52) 2-3 times all hardware.DIMENSIONS LISTManufacturing methodThe quality of bearing steel smelting is very high. It is necessary to strictly control the content of sulfur phosphorus hydrogen and the quantity size and distribution of non-metallic inclusions and carbides because of the number of non-metallic inclusions and carbides. The size and distribution of the bearing steel have a great influence on the service life of the bearing steel. The failure of the bearing is often caused by the expansion of micro-cracks generated around large inclusions or carbides.The main process for producing bearing steel is continuous casting. The electric furnace smelting + electroslag remelting process smelting and a small amount of vacuum induction + vacuum self-consumption double vacuum or + multiple vacuum self-consumption process to improve the quality of bearing steel.

• Bearings
• 4x18mm PIN 20PC
• 4x41mm PIN 20PC
• 4x46mm PIN 20PC
• 4x63mm PIN 20PC
• 4x68.2mm PIN 20PC; 4x16mm PIN 20PC