SELDÉN AUTOMATIC RATCHET BLOCKS

 

 

APPLICATIONS

  • Dinghy main sheets.
  • Dinghy spinnaker sheets

TECHNICAL FEATURES

  • The blocks are designed with lightweight Delrin ball bearings and are available either with a composite sheave or an aluminium sheave. The latter version makes for more grip and the ability to cope with relative thin lines. 
  • 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 RACHET 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.

 

 

 

 

 

 

404-401-01R, Block, ARB45 single
404-401-01
Block, ARB45 single

404-360-51R, BLOCK, ARB45 SINGLE, ALU.
404-360-51
BLOCK, ARB45 SINGLE, ALU.

406-350-56R, A60, CHEEK ANTI-CLOCKWISE
406-350-56
A60, CHEEK ANTI-CLOCKWISE

406-350-55R, BLOCK A60, CHEEK CLOCKWISE
406-350-55
BLOCK A60, CHEEK CLOCKWISE

406-360-54R, BLOCK A60+, SOFT ATTACHMENT
406-360-54
BLOCK A60+, SOFT ATTACHMENT

406-360-51R, BLOCK A60+ SINGLE
406-360-51
BLOCK A60+ SINGLE

406-350-54R, BLOCK A60, SOFT ATTACHMENT
406-350-54
BLOCK A60, SOFT ATTACHMENT

406-350-51R, BLOCK A60 SINGLE
406-350-51
BLOCK A60 SINGLE