Ronstan Series 30 Ball Bearing Loop Top Block, Single RF34108 30052 Rings are Hard Lube-anodised 6061-T6

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

height 28mm

Do not dry clean

Frequency Response: 60 – 20

They come in two sizes:

Ronstan Series 30 Ball Bearing Loop Top Block, Single RF34108 30052 Rings are Hard Lube-anodised 6061-T6Single 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)