www.lewmar.com A A A-A Rudder Bearing Solutions Lewmar’s rudder bearings come in two basic type – plain roller and self-aligning roller. We can provide a rudder bearing solution for any yacht, whether it is tiller steer or a Grand Prix racer. Typical Bearing Installation A. Lower bearings should be positioned so that the seals are above the water line. A gaitor may also be used for added security against leaks. B. Upper and Lower bearings should be spaced apart as far as practically possible to reduce loading on the rollers. C. A removable deck cover may be used for quick fitting of an emergency tiller. D. For tiller steered yachts seals may be incorporated into the upper bearing to prevent water ingress from above deck into the boat. Upper Bearings • Manufactured in 6082 aluminium and anodised • Suit rudder stock diameters 50-109mm (2-4 5/16 in) • Easy to install flanged housing • Model with a deck cover offers integral locking ring and vertical thrust race • No grease or maintenance required Plain roller bearings Features precision Delrin rollers with low friction co-efficient. Illustration shows a plain roller bearing with deck cover and thrust race. Self-aligning roller bearings Bearings includes self-aligning ball and precision Delrin rollers. Lower Bearings • Suit rudder shock diameters 50mm-109mm (2-4 5/16 in) • No grease or maintenance required Aluminium roller bearings • Manufactured in 6082 aluminium and anodised • Accepts sealing system for lip seals or rudder tube and gaitor • Low friction co-efficient • Available in self-aligning version Locking Rings • Used with upper bearings without integral locking ring • Manufactured in 6082 aluminium and anodised • Suit rudder stock diameters 40mm-110mm ( 1 ½” – 4 5/16”) • Stainless set screws secure locking ring to rudder stock Lip Seals • Precision fit seals provide protection against water ingress with minimal friction • Can be used in conjunction with a gaitor for added protection • Sizes available to suit any rudder stock diameter • Manufactured in tough polyurethane material
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