Ronstan Series 50 Double Block, universal headLow friction, 2-stage ball bearing system
High static and dynamic load capacity
Cheek cut-outs for easy bearing maintenance
Slotted pin shackle eliminates fouled lines
Lockable swiveling head post
Sheave Ų - 2 in.
Max. Rope Ų - 1/2 in.
Max. Cable Ų - in
Pin Ų - 1/4 in.
M.W.L. - 1760 lb.
B. L. - 4410 lb.
Weight - 9.0 oz.
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.
Halyards and other primary applications on boats up to 10m (33 ft)
Acetal ball bearings
UV stabilized Acetal sheave
Grade 316 stainless steel load strap and head fitting
Impact and UV resistant, fiber reinforced Nylon cheeks