Core Blocks™ - 60 & 75mm
Ronstan's Universal Bearing, incorporating their proven 2-stage bearing system, provides dynamic and high static load performance:
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.
The RF64103 block with trunnion snap shackle head is an ideal utility/emergency block and can be attached to toe rail. It's also an ideal 2:1 halyard block with quick attachment & removal. Block RF64110 features a removable becket pin for fitting of pre-spliced lines.
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