TECHNICAL FEATURES BBB20
- Stainless steel strap to ensure high strength and stiff sides.
- Stainless steel ball bearing races and glass fibre reinforced sheave for best bearing strength even under high dynamic loads.
- Glass fibre reinforced polyamide composite.
TECHNICAL FEATURES BBB20 TIE ON AND CHEEK BLOCK
- Glass fibre reinforced composite cheeks.
- Acetal ball bearings for light weight.
- Glassfibre reinforced sheave.
Seldén BBB20 20 mm ball bearing blocks are ideal for dinghy and keelboat control lines with a light weight and compact design incorporating stainless steel ball bearings and glass fibre reinforced polyamide construction. Available with single, double and triple sheave options across a full range of attachment and mounting types for lines up to 6 mm.
WHY CHOOSE BBB20
The BBB20 is Seldén's smallest ball bearing block. Typical applications are cunningham, outhaul, halyard fine-tune and kicker/vang systems where load is modest but low friction matters. For heavier loads step up to BBB25 high load blocks, for larger lines sizes and sheets BBB30 or BBB40 is the appropriate step
SPECIFIC CLASS APPLICATIONS
For 420 jib halyard tension systems select the BBB20 standard triple (402-101-05R) and BBB20 becket cam triple (402-101-08R) are used in the 420 jib halyard rig tension purchase system, where compact triple block suit the confined space and small line diameter.
The single tie-on 402-101-12 is ultra-light with very low friction. It is ideal for control line take-up systems and for running shock cords. Use to upgrade RS Aero over deck controls.
