Tap here to read more about Caltric 51537300 51530700 42″ 60″ Deck Spindle Assembly For Ariens Gravely. Compatible with Bobcat Models. CRZ Zero Turn Mowers. 942600, 942604 – 48″, 942601, 942605 – 52″. 3 x Spindle Assembly. Width : 192 mm – 7.55 in. Outer Diameter : 137.5 mm – 5.41 in.