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Sheave Ronstan series Ball Bearings Blocks, 20-mm.
Sliding low-friction, high static and dynamic load, light weight.
Can be used for the control line, vangs, cunninghams, and travelers on boats dinghy.
Materials
Ball bearings in stainless steel
Pulley, acetal, stabilized to UV rays
Belt load and head attack in stainless steel AISI 316
Cheeks in Nylon reinforced with fibres resistant to shocks and UV rays
