Product Description Ronstan Series 50 BB Fiddle BlockFeatures: Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled linesSpecifications: Sheave Ø - 2 1/8 + 1 5/16 in. (54 + 34mm) Max. Rope Ø - 3/8 in. (10mm) Max. Cable Ø - in (mm) Pin Ø - 3/16 in. (5mm) M.W.L. - 1100 lb. (500 kg) B. L. - 3310 lb. (1500 kg) Weight - 5.9 oz. (166 g)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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as requiredApplications: Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10m (33ft) Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.Materials: Acetal ball bearings UV stabilised Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fibre reinforced Nylon cheeks
