SDA50X50B Airtac Compact Air Cylinder, Double Acting Stud Type Track Rollers NUKR The Bearings part number is

The Bearings part number is CE-684-C3-ZRO2-PEEK-DRY and This bearing has the following Dimensions: CE 684 C3 ZRO2 PEEK open 4x9x4 mm

PSS1520N1D0361 NSK  Acme and Ball Screw

HJ1040 L-section Rings Brand: FAG

3213-BD-XL-2HRS-TVH Angular Contact Ball Bearings Brand: FAG

If you have been looking for SB030XP0 3"x3

SDA50X50B Airtac Compact Air Cylinder, Double Acting Stud Type Track Rollers NUKR The Bearings part number isSDA50X50B Airtac Compact Air Cylinder, Double Acting Compact pneumatic cylinder, double acting, 50mm Bore, 50mm Stroke, without magnet, Male thread, PT thread type Acting Type Double Acting Airtac sda series Compact Air Cylinder Airtac Product Series Airtac SDA Compact Air Cylinder Bore Size 50mm Brand Airtac Component Type Compact Air Cylinder Magnet Without Magnet Rod Type Male Thread Stroke Length 50mm Thread Type PT