P404401 - Selden 45mm Automatic Ratchet Block.
Technical features of the Automatic Ratchet Block 45:
5mm Delrin ball bearings and 45mm aluminium sheave.
The sheave automatically changes from free-turning 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.
Specification:
Sheave Diameter: 45mm
Safe Working Load: 150kg
Breaking Load: 300kg
Max line: 8mm
Pin Diameter: 4mm
Shackle Diameter: 4mm
Weight: 64g