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Inner Rings of Bearings
Inner ring is used as basic parts of Needle Roller Bearing , in cases where a raceway cannot be provided directly on the shaft, SYI inner rings permit practical and economical design solution.
Inner ring is made by bearing tube ( JIS SUJ-2 /SAE52100/DIN 100Cr6)

Inner rings Inner rings-Inch    
           
           

       
Metric Size   Inch Size