* Real 450,000rpm speed* Dedicated P4/ABEC7 precision* Stainless steel (9Gr18) & ceramic(Si3N4) materials* High-end textolite based phenolic cage
BSR-144ZT (3.175*6.35/5.97*2.38mm)BSR-144ZTG (3.175*6.35/5.97*2.78mm)BSR-144ZK (3.175*6.35*2.38mm)BSR-144ZKG (3.175*6.35*2.78mm)BSFR-144Z (3.175*6.35/7.5*2.78mm)B: Inner ring with slopeS: Bearing material is stainless steelT: Outer ring with shoulderG: Bearing width wideningFor futher information, please kindly contact with our sales people. Thank!