01.58 25mm High Load Ball Bearing in Mast Block

These ball race blocks are designed to take high loads and be very light. They have a double row of captive stainless steel balls running within a stainless steel sheave. This ensures minimal deflection of both ball and housing helping prevent "dig in" under high loads.

Rope Size/Types: 4mm wire, Dyneema, Spectra or Kevlar Sheave: 316 stainless steel Bearing: Double row stainless steel ball Body construction: Electro polished 316 s/s with hollow rivet Breaking Loads: 950kg (01-32) Weights: 32g (01-32) Typical uses: Control lines, halyards, outhauls, kicking straps, furling lines, cunninghams, traveller control lines, leech lines.