SR144K2W Ceramic ABEC-7 inner & Outer Ring are combined Bearing 1/8" x 1/4" x 7/64"inch 7203CYDUP4BNLS 5mm Shielded Ball Bearings

5mm Shielded Ball Bearings

NBK Japan MJC-95CS-EWH 1 inch to 1 inch

NBK Japan MJS-65CSK-ERD 25mm to 28mm Jaw-type Flexible Coupling

NBK Japan MJS-65CS-WH 14mm to 18mm

NBK Japan MJC-40CSK-EGR 19mm to 24mm

SR144K2W Ceramic ABEC-7 inner & Outer Ring are combined Bearing 1/8" x 1/4" x 7/64"inch 7203CYDUP4BNLS 5mm Shielded Ball BearingsSR144K2W Stainless Steel ABEC 7 Outer ring is Separate Retainer : Torlon SR144K2W Hybrid Ceramic ABEC 7 Ball Bearing. Made of stainless steel and has Solid Si3N4 Ceramic balls. Cage is made from Torlon for lowest friction, long life and highest speed. SR144K2W Ball Bearing Angular Contact ball bearing Material: Stainless Steel Quality: ABEC 7 Closures: OPEN Balls: Si3N4 Ceramic (Silicon Nitride) Balls retainer: Torlon Speed: 400,000 RPM Size: 3. 175 x