Ronstan Series 40 Ball Bearing Block, Loop Top RF40101 MEDIUM KEEL BOAT 50mm )Single hand openingShackle key

)Single hand openingShackle key

HR forged (17

Optimist deck collar with an oval and tapered inner diameter

Diameters given are outside tube diameters

Base suits curved mounting base

Ronstan Series 40 Ball Bearing Block, Loop Top RF40101 MEDIUM KEEL BOAT 50mm )Single hand openingShackle keySERIES 40 RF40101 FEATURES Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Low friction, 2 stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut outs for easy bearing maintenance Sheave 40 mm Max. Rope 10 mm Max. Cable mm Pin mm M. W. L. 350 kg B. L. 1000 kg Weight 53 g