Linear Ball Bearing Type Open Inside Dia 2 in Outside Dia 3 in Material Steel Accelerated Speed 450 fps Between Grooves (mm) 3.195 in Dimension B - Dimension C 4 in Dimension C1 3.195 in Dimension C2 0.103 Dimension d - Dimension E 1 in Dimension F - Dimension G - Dimension T 2 Dynamic Load Capacity (N) 860 lbf For Use With Thomson Shafting Inside Dia Tolerance +/-.001 Maximum Operating Temperature 500 Degrees F Minimum Operating Temperature 0 Degrees F