... Plastic coated, etc.Small order are acceptedAdvantage:Most representative bearing of the rolling bearingsSuitable for high speed even extremely ... ,P4.p2cageStamped steel cage or solid brass cage Shield/closureOpen ball bearing, Z, ZZ, RS, 2RS, 2RZTolerance CodeABEC-1, ... usage life *less coefficient frication*high processing speed*various size and structure rangeTypeSingle row,double row.etc.(according ...