61802 Hybrid Ceramic Bearings can be made with chrome 52100 or stainless steel for the inside and outside race along with silicon nitride balls
NU2248-EX-M1A-C3 Cylindrical Roller Bearings Brand: FAG
015 Outside diameter - mm: 90 Width - mm: 13 Bore: cylindrical Extended Inner Ring: no Sealing: 2RS Seals material: NBR Ring Material: Stainless Steel Rolling Element Material: Stainless Steel Cage Material: Stainless Steel Lubricant: greased Lifetime lubricated: yes Sealing Colour: Blue Internal Clearance: CN (Standard) Precision Class: ABEC 1 / P0 Noise and vibration testing: Class V max
B7021-C-T-P4S-DUL Super Precision Angular Contact Spindle Bearing 105x160x26mm (Set of 2) B7021CTP4SDUL
RMT25X300SG
Airtac Rodless Magnetic Air Cylinder, Guided Radial Spherical Plain Bearings GEEW..ES 61802 Hybrid Ceramic Bearings canRMT25X300SG Airtac Rodless Magnetic Air Cylinder, Guided Rodless pneumatic cylinder, magnetic, guided, 25mm Bore, 300mm Stroke, with magnet, 2 adjustable nuts, G thread type Acting Type Double Acting Airtac rmt Guided Rodless Magnetic Air Cylinder Airtac Product Series Airtac RMT Rodless Magnetic Air Cylinder Guided Bore Size 25mm Brand Airtac Component Type Rodless Pneumatic Cylinder Magnet With Magnet Stroke Length 300mm Thread Type G