Product Specifications

40mm Double Swivel Shackle, Becket Block - Master BB-0404F


Sheave Ø (mm)

40 mm

Sheave Ø (in)

1 9/16 in

Maximum line Ø (mm)

10 mm

Maximum line Ø (in)

3/8 in

MWL / BL (kg)

230 / 800 kg

MWL / BL (lb)

506 / 1760 lb

 

Product range – Ball Bearing Blocks

Master ball bearing blocks are available in 22mm, 29mm, 40mm, 57mm and 75mm sizes, and multiple configurations. The range features:


  • low friction ball bearings combined with a self-lubricating Acetel sheave for speed and minimal friction,
  • high strength side plates made from a UV stabilised, stiff glass-fibre reinforced Nylon composite for lightness,
  • locking mechanism so that the shackle in the “single swivel shackle” models can either rotate freely or be locked in position (only from 57mm).
  • becket pin which is easy to remove or lock into the keyhole with no tools,
  • adjustable cam cleat arms for an optimal exit angle of sheets (only from 40mm).