Linear Ball Bearing Type Open Inside Dia 3/4 in Outside Dia 1 1/4 in Material Stainless Steel/Polymer Cage Between Grooves (mm) 1.17 in Dimension B 1.170/1.154 in Dimension D1 1.176 in Dimension D (In.) 1.25 in Dimension L 1.625 in Dimension W 0.056 in Dynamic Load Capacity (N) 470 lbf For Use With Support and Feather Rails Inside Dia Tolerance +/-.0004 Maximum Operating Temperature 176 Degrees F Minimum Operating Temperature -4 Degrees F Outside Dia Tolerance +/-0.00065