1.Meterial:GCr15 2.High speed, less friction 3.Sample: Available 4.High Precision Roller Bearing, Taper Bearing, Tapered Roller Bearing ... :1.Less coefficient of friction, High limiting speed, Large size range, Variations of structure.2. ... or as customers' requirementPriceFOB, CFR, CIFDelivery Time20-30days JPZZ Professional supply high quality trapered roller bearing