Ronstan Series 55 Ball Bearing Orbit Blocks
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  • Ronstan Series 55 Ball Bearing Orbit Blocks

Ronstan Series 55 Ball Bearing Orbit Blocks

Ronstans series 55 blocks are ultra lightweight, compact, have a low profile and feature a low friction 2-stage orbital ball bearing system and easily fitted and securely retained Dyneema Link head and are the highest working load in their class.

Designed for a variety of uses and applications in mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keelboats up to 9m (30ft), Halyard, Vang and Backstay application on boats up to 8m (26ft), as well as control line applications on larger yachts.

Blocks have high compression strength carbon black Acetal ball bearings, a UV stabilized multi-strand impregnated SK75 Dyneema rope link, glass fibre reinforced nylon frames and cheeks, and carbon fibre reinforced PTFE impregnated nylon stage 2 bearing.

 
IN STOCK - Available for pickup  
$40.43 / ea
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$40.43
$87.71
$179.96
$111.56
$97.96
$108.76
$98.82
$56.95
$49.35
$103.05
$80.91
$53.16
$38.56
$44.60
$231.11
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Tech Spec Product Info User Generated Content
Product Sheave  Max. Rope  M.W.L.  B.L.  Weight 
RON-RF55101  2-5/32"  3/8"  1100 lb  2200 lb  2.4 oz 
RON-RF55111  2-5/32"  3/8"  1100 lb  2200 lb  2.6 oz 
RON-RF55151  2-5/32"  3/8"  1100 lb  2200 lb  2.5 oz 
RON-RF55171  2-5/32"  3/8"  1100 lb  2200 lb  3.2 oz 
RON-RF55201  2-5/32"  3/8"  1765 lb  3520 lb  4.7 oz 
RON-RF55301  2-5/32"  3/8"  2200 lb  4410 lb  7.2 oz 
RON-RF55501  2-5/32" + 1-3/8"  3/8"  1100 lb  2200 lb  3.4 oz 
RON-RF55511  2-5/32" + 1-3/8"  3/8"  1100 lb  2200 lb  3.4 oz 
RON-RF55521  2-5/32" + 1-3/8"  3/8"  1100 lb  2200 lb  8.1 oz 
RON-RF55531  2-5/32" + 1-3/8"  3/8"  1100 lb  2200 lb  8.2 oz 
RON-RF55210  2-5/32"  3/8"  1650 lb  3300 lb  6.1 oz 
RON-RF55310  2-5/32"  3/8"  1650 lb  3300 lb  8.6 oz 
RON-RF55410  2-5/32"  3/8"  1650 lb  3300 lb  11.2 oz 
RON-RF56100  2-5/32"  3/8"  550 lb  1430 lb  2.9 oz 
RON-RF56330B  2-5/32"  3/8"  1650lb   3300 lb   13.8 oz 
BRAND: Ronstan
Type: Blocks and Sheaves
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