Manufacturer part #: RF50101 1
Technical Description
Series 50 BB Single Loop Top Block
2 in
50 mm
1/2 in
12 mm
1100 lb
500 kg
3310 lb
1500 kg
3.4 oz
97 g
Manufacturer part #: RF50101
Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance 
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.
Applications
Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10 m (33 ft) 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
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.
Applications