Ronstan Series 30 Ball Bearing Loop Top Block, Single RF34108 30052 height 28mm

height 28mm

They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block

They come in two sizes:

Do not dry clean

Rings are Hard Lube-anodised 6061-T6 aluminium for a smooth

Ronstan Series 30 Ball Bearing Loop Top Block, Single RF34108 30052 height 28mmSingle loop top, clevis pin head, alloy sheave, Torlon balls FEATURES Low friction Torlon ball bearing system. Lightweight. Cheek cut outs for easy bearing maintenance Oversize Torlon balls minimise friction APPLICATIONS Dinghy spinnaker halyards MATERIALS Torlon ball bearings. Alloy sheave. Grade 316 stainless steel load strap and head fitting SPECIFICATIONS Product Specifications B. L. (kg) 675 M. W. L. (kg) 165 Max. Rope diameter (mm) 5 Weight (g)