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Disc Components: A Story of Strength

Kuhn Krause heavy cast spools aren't just spacers for the disc blades, they multiply the strength of the Kuhn Krause disc gang, making it the strongest in the industry. Kuhn Krause spools are line-bored for an exact fit on the tie rod and are precision faced to perfectly match the surface of the disc blade. A larger bell on the convex end and a smaller bell on the concave end provide an overlap fit against the blades. This design supports the disc blade more positively without creating a stress line like competitive designs.

Other disc manufacturers use fabricated spools made by welding a round steel stamping on each end of a piece of tubing. The resulting spacer does not provide a precision machined gripping surface against the disc blade. Since the fabricated spools are the same diameter on both ends, a stress line is created by the disc blade flexing as shown in the illustration.

Rock-Flex® bearing arms flex over the toughest obstacles. Kuhn Krause's exacting manufacturing process for Rock-Flex arms includes heat treating for durability and shot peening to relieve stress. Lubrication access to the SuperSeal gang bearings is through the protection of the Rock-Flex standard itself. The Rock-Flex bearing arm is available on all Kuhn Krause disc harrows.

Kuhn Krause SuperSeal regreasable gang bearings are as tough and durable as the discs they come on. First they're protected in a ductile cast iron holder and encased in a heavy rubber boot to absorb shock. The triple lip seal has an extra heavy outer lip to resist wear and keep dirt out. Grease fitting is aligned directly with lube hole in the bearing for positive greasing directly into the cartridge. SuperSeal bearings are backed by Kuhn Krause's three-year limited warranty*.

*See Kuhn Krause Limited Warranty which applies to wholegoods retailed after 7-1-99.


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KUHN NORTH AMERICA, INC. - 1501 West Seventh Ave. - P.O. BOX 167 - Brodhead, WI 53520 - Phone: 608-897-2131- Fax: 608-897-2561
KUHN KRAUSE, INC. - 305 S. Monroe St. - P.O. BOX 2707 - Hutchinson, KS 67501 - Phone: 800-957-2873