or 4 payments of 
Description
RONSTAN RF30100 Series 30 Bb Block – Single – Series 30 Ball Bearing Blocks – Swivel Head Shackle
Series 30 Ronstan’s Ball Bearing (BB) Blocks are a great all around solution. Ronstan’s Ball Bearing blocks have been designed and engineered for any size vessel. Used on any size boats for sheet and control line applications. They utilise a highly efficient, low friction bearing system for optimum sheeting and trimming performance.
FEATURES
Low friction 2-stage ball bearing system provides consistent performance over the full working load range.
High static and dynamic load capacity.
Light weight
Versatile head fittings
PRODUCT INFORMATION
Sheaves running on Acetal or Torlonball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.
APPLICATIONS
Primary lead blocks on dinghies and catamarans
Control lines on larger yachts
MATERIALS
U.V. stabilised Acetal sheaves
Acetal ball bearings
Impact modified, fibre reinforced and U.V. stabilised Nylon cheeks
Grade 316 stainless steel load straps and head fittings
Acetal ball bearings
UV stabilised Acetal sheave
Grade 316 stainless steel load strap and head fitting
Impact and UV resistant, fibre reinforced Nylon cheeks
Specifications
Sheave
30 mm
Max. Rope
8 mm
Max. Cable
– mm
Pin
4.0 mm
M.W.L.
300 kg
B. L.
750 kg
Weight
34 g
