20 mm Ball bearing Block - Single, Lead PBB100 It features ø30 mm plain

It features ø30 mm plain bearing sheaves for 4:1 or 6:1 purchase of the control lines

This is a 22 mm wide and 1200 mm long standard track with holes for M5 fasteners

It features stainless steel ball bearings for smooth rotation and a cam cleat for locking a line

R60 and A60 blocks

The block features stainless steel ball bearings for strength and smooth rotation and a  ø60 mm polymer sheave and glass fiber reinforced polyamide cheeks

20 mm Ball bearing Block - Single, Lead PBB100 It features ø30 mm plainThe Seldn BBB20 Lead Block is a 20mm ball bearing block designed for lower loads. It is easy to install on deck with 2 M4 screws. The stainless steel ball bearings provide smooth rotation with minimal friction, making it ideal for control lines on dinghies and keelboats. The glass fibre reinforced polyamide composite construction ensures strength and durability even under high dynamic loads. BlockType: lead,single SubType: lead single Breaking Load: