unique race structure design, Low clearance, with grease nipple, Well durable performance.
MATERIALS
BODY:Medium Carbon Steel S35C, Forged, Zinc Coated(Cr3+)
BALL:Bearing Steel SUJ-2, Heat Treated HRC 58°±2,Hard Chrome Plated
RACE: Copper Alloy
POS 5 R/L,POS 6 R/L,POS 8 RF/LF POS 8 R/L,POS 10 RF/LF
POS 10 R/L,POS 12 RF/LF 
POS 12 R/L,POS 14 RF/LF 
POS 14 R/L,POS 16 RF/LF 
POS 16 R/L,POS 18 R/L,POS 20 R/L,POS 22 R/L,POS 25 R/L,POS 30 R/L