System 30 - End Control, Double Plain Bearing Sheaves, 4:1 Purchase, Cam Cleat for Portside Control, Becket for control line Optimist The BBB30 30 mm Ball

The BBB30 30 mm Ball Bearing Block with slotted swiveling shaft is designed to be fitted to a 2-p eye with or without a spring

The block is designed with lightweight Delrin ball bearings and a switch on each side to select ratchet function or a free spinning sheave

This is a 22 mm wide and 3000 mm long "Sliding Bolt" track

It is tied directly to rigging points

Use for control lines on dinghies and keelboats

System 30 - End Control, Double Plain Bearing Sheaves, 4:1 Purchase, Cam Cleat for Portside Control, Becket for control line Optimist The BBB30 30 mm BallThe System 30 End Control Port Cam is part of the System 30 deck hardware range. It features 40 mm plain bearing sheaves for 4: 1 purchase of the control lines and an aluminium arm with a size 38 mm Cam Cleat. The hole in the base is a "dead end" becket for a control line. The fitting is anodized aluminium with a shock absorbing rubber buffer. Ideal dimension of the control line is 7 mm. See Seldn's line packages. Control lines, article numbers and