WRD-BCH ยท Bobcat Spindle/Shaft Bobcat Spindle/Shaft Replacement Bobcat spindle with a 5/16-inch hex drive. Fits Bobcat assembly Part Spindle and shaft Where this part is used Bobcat Assembly WRD-BCA → Other parts for the Bobcat assembly Bobcat Ball Bearings → 2pcs set of ball bearings sized for the Bobcat system. Bobcat Body Components → Replacement Bobcat tool body components. Bobcat Deflection Rods → 2pcs replacement deflection rods sized for the Bobcat system. Spring Set → Replacement spring set for the Orange Bat.