2025 Ronstan Marine Catalogue - Catalog - Page 46
SPORTS BLOCKS
ILCA® HARDWARE
44
Stage 2
Stage 1
2-stage bearing system
Low friction, high load
®
ILCA Hardware
MAINSHEET BLOCKS
®
Ronstan’s ILCA mainsheet blocks provide the perfect balance of
strength, performance, and reliability. They feature a 2-stage bearing
system which minimises friction and gives sailors ultimate control while
trimming. The cheeks and housings are lightweight yet strong and made
from toughened glass 昀椀bre reinforced nylon. All stainless steel 昀椀xings
and rivets are grade 316 stainless steel. The linked traveller block uses
the same 2-stage bearing for the mainsheet sheave while the smaller
traveller sheave has a simple AP bearing to maintain enough friction
to help keep the block close in the leeward corner when sailing upwind
under load. Several concepts of the articulation point of the linked
traveller block were tried and tested by ILCA® sailors to ensure the best
design was achieved for optimum articulation.
Ball Bearing versions incorporate our 2-stage bearing system using ball
VANG UNITS
Ronstan’s ILCA® lower vang unit is the new benchmark in design and
performance. Thoroughly tested on the water by leading ILCA® sailors,
the vang unit features a geometry that minimises line chafe and friction
and provides a purchase advantage, with easy cleating and releasing to
stay in full control when playing the vang from any angle while inboard or
hiking. The primary purchase sheave features our high load, low friction,
stainless steel HHL sheave. The cleat arm pivot point is close to the clevis
pin attachment to minimise stress on the mast attachment point.
RF34118HLK and RF34108HLK are purpose designed ILCA® top vang
blocks.
Both the lower vang unit and top vang block cheeks are made of grade
316 stainless steel with a hard wearing black coating.
bearings to minimise friction and a secondary full-contact bearing to maintain
High Load versions are designed speci昀椀cally for any application where high
low friction across the full working load range.
dynamic or static loads are expected. They feature a high strength grade 2205
All Purpose versions are a great choice for durability and a long service life. They
feature self-lubricating acetal polymer sheaves running on polished stainless steel
stainless steel sheave, hub and bearing race to maintain low friction at very
high loads.
races and perform equally well with dynamic loads and static loads.
ILCA® is a registered trademark of International Laser Class Association, Inc.
