Extra-long triple lips on the inner race, combined with a wide seal between the outer race and flange, flex to resist wear, keep dirt out, and help maintain lubrication. Bearings are self-aligning and greasable for longer life. And they re backed with a two-year warranty. Welded steel spools add protection. Either way, soil and residue are directed backward rather than up toward the disk gangs where they can interfere with the disking action.
Wheel modules are maintenance-free.
Unlike the joints in other disks that wear over time and distort depth by increasing play in the rockshaft, John Deere disks feature maintenance-free wheel modules. That means no time-consuming greasing of the joint ever. And there s no wear in the joint to affect depth. Accurate depth control. Single-point depth control, standard on folding RockDisks, lets you easily and precisely set depth from one point at the front of the disk.