Single Block, Fiddle, Cleat
Core Blocks are a true all round solution. A tuned 2-stage bearing system
provides excellent performance across the full working load range with an
integrated thrust bearing feature and the resilience to handle high dynamic or
static loads. Acetal sheave, alloy cheeks and stainless fixings complete the
durable package. For reliability and a long service life, these blocks are the
right choice for sheets, halyards and control line applications for cruising and
racing.
Universal bearing. Dynamic and high static load performance. The Ronstan
Universal Bearing incorporates a proven 2-stage bearing system. Stage 1 - Under
moderate loads, Acetal ball bearings ensure minimum friction.
Stage 2 - Under heavy loads, where deformation of ball bearings alone would
result in increased friction, a sliding Acetal bearing on a polished stainless
steel race takes over, maintaining low friction performance.
Additionally the ball bearings are configured to act as a thrust bearing between
the sheave and cheeks, preventing the sheave from rubbing on the cheeks and
causing friction when the line lead in and out of the block isn’t perfect.
Particularly important for cheek blocks.
Block cheeks are manufactured from the highest quality alloy for maximum
strength. Material optimisation and the cut-away design minimises weight and
allows easy fresh water rinsing of salt and debris from the bearings. Cheek
design has been further styled with flaring at the block throat and reduced gap
between the cheek and sheave, minimising rope wear.
- Class leading performance and sleek, contemporary styling
- Excellent dynamic and high static load performance
- Less than half the friction of the nearest competitor
- Durable aluminium alloy cheek plates
- Central hub hole can be used as a becket take-off or tie-up point
- Adjustable cleating angle
- Fitted with high performance c-cleat and fairlead for secure and easy cleating
- Integrated becket through the hub of the lower sheave
Single Block, Fiddle, Cleat
Product Specs
The West Advisor
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.
