Linear Ball Bearing Type Closed Inside Dia 2 in Outside Dia 3 in Material Stainless Steel/Polymer Cage Accelerated Speed - Between Grooves (mm) 3.195 in Dimension B 3.195/3.177 in Dimension C - Dimension C1 - Dimension C2 - Dimension d - Dimension D1 2.838 in Dimension D (In.) - Dimension E - Dimension F - Dimension G - Dimension L 4 in Dimension T - Dimension W 0.103 in Dynamic Load Capacity (N) 858 lbf For Use With Linear Motion Shafts Inside Dia Tolerance +/-.0005