45mm Auto Ratchet Block

RRP £71.58


Selden ARB 45 Block Applications: Dinghy main sheets and Dinghy spinnaker sheets. Technical Features ARB 45: Ø5 mm Delrin ball bearings and Ø45 mm carbon fibre reinforced polyetherimide sheave. The sheave automatically changes from free-turning to ratchet when the load increases. The sailor decides when the automatic ratchet kicks in.

The switch-over point is set using an Allen key to adjust a screw inside the sheave. Fast, simple, precise. Automatic Ratchet Block Inside: 1) When the block is low-loaded the ratchet mechanism is disengaged and the sheave spins free. 2) When the load on the block increases the ratchet engages and the sheave is locked in one direction.



  • S.W.L (Kg): 150
  • Break Load (Kg): 300
  • Weight (g): 64
  • Rope Ø (mm): 8
  • Shackle diameter: 4mm


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