Ronstan Blocks Ball Bearing (20mm)

Ronstan’s Ball Bearing 20mm, conceived and engineered for the demands of competitive sailing in skiff, Olympic and sports boats classes, have rapidly become the international choice for high performance hardware.

Meet the high performance demands of running sheet applications with a unique two-stage bearing system. Stage 1 – Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 – Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Regular flushing with fresh water to remove salt and sand will maintain optimum performance over a long service life. These blocks are an excellent choice for main and jib sheets, spinnaker sheets and control lines.

MAURIPRO Sailing, your direct access to Ronstan Ball Bearing Blocks – 20mm and all your other sailing and boating needs.