If you are bothered about the SF042XP0 4
The part number is UELFC211-Set and This item has the following Dimensions: UELFC211 a Set of Comprising Bearing Insert UEL211 and Flange Housing FC211 - Shaft: 55 mm
Bearing Number = 7216CTRDBDLP4 7 = Angular contact series bearing 2 = Dimension series 16 = 80mm bore diameter C = 15 Degree contact angle TR = Phenolic cage outer ring guided DBD = Set of 3 Bearings << > L = Light preload P4 = ISO Class 4
71810ACD/P4DGA Super Precision Angular Contact Spindle Bearing 50x65x7mm (Set of 2) 71810ACD/P4DGA
7903A5TRDUMP4 Super Precision Angular Contact Spindle Bearing 17x30x7mm (Set of 2) 7903A5TRDUMP4
ACE100X55SBT Airtac ACE Compact Air Cylinder, Double Acting Deep Groove Ball Bearings CE-63 (Full Ceramic) If you are bothered aboutACE100X55SBT Airtac ACE Compact Air Cylinder, Double Acting Compact pneumatic cylinder, double acting, 100mm bore, 55mm stroke, with magnet, rod with male thread, NPT thread type Product Info Acting Type Double Acting Airtac ace Compact Air Cylinder Product Series Airtac ACE Compact Air Cylinder Bore Size 100mm Brand Airtac Component Type Compact Air Cylinder Magnet With Magnet Rod Type Male Thread Stroke Length 55mm Type of Thread NPT