Ronstan Ball Bearing Marine Swivel Cleat Base

The Ronstan Ball Bearing Marine Swivel Cleat Base gives mainsheet and control-line systems that need a swiveling cleat base with adjustable rotation and low-friction support. The cleat arm can rotate around the base so the crew can trim and release from a changing position instead of pulling from one fixed angle. Twin rows of ball bearings support that movement, while a small C-Cleat and fairlead manage the control line at the working end. The arrangement is useful on dinghies and catamarans as well as selected control lines on larger yachts.

A stainless-steel cleating plate adds stiffness and helps limit distortion as line load rises. The compact sheaves are intended for small control rope, keeping the overall base low and easy to fit around other cockpit hardware. Stops can limit the arm's travel so the cleat does not swing into an unwanted position during maneuvers. Alloy cleating arms and Grade 316 stainless fixtures give the unit a marine-oriented construction that can be rinsed and inspected easily.

• Swiveling cleat arm for access from changing angles
• Ball-bearing support for smooth rotation
• Integrated small C-Cleat and fairlead
• Rotation stops help control arm travel

Ronstan recommends the base for sheet leads, cunninghams, vangs, foreguys, pole topping lifts, and similar controls. The supplied line-load guidance should be respected when laying out the purchase, especially if the base is paired with a higher-capacity block. Choose a mounting position that keeps the line lead clear through the useful range of arm movement. For more cleat bases, fairleads, and sail-control components, browse more Sailing Hardware.