You can purchase SA090AR0 9"x9
If you are bothered about the KB160AR0 16"x16
Model = 71922ACE/HCP4ADGA 719 = Angular contact ball bearing in accordance with ISO dimension series 19 22 = 110mm bore diameter ACE = 25 deg contact angle
ACE63X200T Airtac ACE Compact Air Cylinder
If you are bothered about the K30020XP0 300mm x 340mm x 20mm Thin Section Bearings prices
PBR16X30SU
Airtac Round Body Air Cylinder, Double Acting Housing Units Sets UKP2 You can purchase SA090AR0 9"x9PBR16X30SU Airtac Round Body Air Cylinder, Double Acting Round body pneumatic cylinder, double acting, stainless steel, 16mm bore size, 30mm stroke, with magnet, Perpendicular 90 degrees back cover Acting Type Double Acting Airtac pbr Round Body Air Cylinder Stainless Steel JIS Airtac Product Series Airtac PBR Round Body Air Cylinder Stainless Steel JIS Back Cover Type Perpendicular 90 Degrees Bore Size 16mm Brand Airtac Component Type Round Body