DOMAR D40110 bottom keel roller for boat trailer 130mm

DOMAR D40110 bottom keel roller for boat trailer 130mm

The DOMAR D40110 keel roller is a component designed for boat trailers , used to support and guide the keel of a boat during launching, recovery, and transport. Mounted at the bottom of the trailer , it helps properly position the boat on the frame and facilitates movement without the risk of direct contact between the hull and metal structural members.

The D40110 model is 130 mm long, has an 80 mm outer diameter , and has a 16 mm mounting hole. The carefully contoured roller shape provides stable support for the central hull, and the durable material performs well in water-based conditions where the component is exposed to moisture, dirt, and frequent contact with the boat.

A bottom roller improves the comfort of operating a boat trailer , especially when launching or pulling the boat out of the water. It reduces the hull's sliding resistance, helps protect its surface from abrasion , and promotes even load distribution on the trailer. It works well as a component of a new trailer structure or as a replacement for a worn keel roller.