100CrMn6 1.3520 SUJ3 Bearing Steel Tube

Bearing steel tube is a sort of hot-rolled or cold-rolled (cold-drawn) seamless steel tube. It withstands great pressure and friction force, so bearing steel tube own high and uniform hardness and abrasive resistance and elastic max. There are strict requirements for bearing tube, particularly the uniformaity of chemical composition, non-metallic inclusion content and distribution of carbides.

It can supply for producing kinds of bearing ferules, rollers and steel balls applied in combustion engine, electric motor car, automobile, tractor, lathe, rolling machine, drilling machines, mining machinery, general machinery, as well as high-speed rotated mechanical transmission keeping.

ASTM A295 wearable high-carbon bearing steel tube

ASTM A534 wearable and cementite bearing seamless steel tube

JIS G4805 high-carbon chromium bearing seamless steel tube

DIN 17230 ball bearing steel pipe

NF A35-565 steel product, quality of bearing steel

Hot Rolled tube range: OD 60-210mm, WT 5-55mm

Cold-drawn/Cold-rolled tube range: OD 10-135mm, WT 1-20mm

Tolerance of OD: D<50 mm (-0/+0.15mm), D>50 mm (-0/+0.25mm)

Tolerance of WT: -/+7.5%(after agreement -/+5%)

Straightness: 1 mm/m measured on the outside surface, maximum 2.5 mm/3000mm