Selden 45 Ball Bearing Block – Automatic Ratchet

For dinghy main or spinnaker sheets. Makes it easy to advance your grip when hauling in the sheet. Also easier for a person holding the sheet. The perfect combination of control and convenience.

• Dia. 5 mm Delrin ball bearings and Dia. 45 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.

Our Part # SEL40440101R | Selden Part # 404-401-01R