Profile: Kestrel Supplies manufactures Wheel Buddies. It is designed specifically to replace the hubcaps on boat & Jet Ski trailers, both braked and free running versions. Once installed, the Wheel Buddy will protect wheel bearings from corrosion. Wheel Buddy is machined from corrosion resistant materials and designed to create a differential pressure system that prevents water entering the bearings and stub axle. The unit can be fitted to any make of trailer. Grease is pumped into the Wheel Buddy through the offset grease nipple, once the void between stub axle and bearings is primed full of grease. When grease is seen to exude from the relief valve, the wheel bearings and stub axle are fully protected and ready for use. We also manufacture propshafts from one off prototypes with tooling to suit.