Linear Ball Bearing Type Closed Inside Dia 8 mm Outside Dia 16 mm Material Steel/Delrin Accelerated Speed 150 mm/sec Between Grooves (mm) 16.2 mm Dimension C1 16.2 mm Dimension C2 1.1 Dimension d 8 Dynamic Load Capacity (N) 180 N For Use With Thomson Shafting Inside Dia Tolerance + .009 Maximum Operating Temperature 185 Degrees F Minimum Operating Temperature 0 Degrees F Length (In.) 25 mm Seal -