S60 - Stand-up -Swivel

FEATURES
Class leading performance and sleek, contemporary styling
Excellent dynamic and high static load performance
Less than half the friction of the nearest competitor
Swivelling head post for full 3-axis articulation
Strong precision cast padeye base
Resilient rubber stand-up boot prevents clatter & block falling down when not loaded
Central hub hole can be used as a becket take-off or tie-up point
Mount with 4 x 6mm (1/4") fasteners (not supplied)

PRODUCT INFORMATION
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 our 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.

Alloy cheek plates
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.

Fully articulated stand-up

Stand-up models have a low profile linkage that provides full rotation and articulation. A high strength precision cast padeye minimises the footprint and a dedicated rubber boot ensures the block is held upright when not loaded.

APPLICATIONS
Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 11m (36ft).
Various control line applications on larger yachts.
Alloy sheave models are available for use with wire.

MATERIALS
Sheaves: U.V. stabilised Acetal
Cheek plates & cleat arms: Aluminium alloy
Ball Bearings: High compression strength carbon black Acetal
Shackle, post & hub: Grade 316 stainless steel
Padeye & snap shackle: Grade 15-5PH stainless steel
Snap shackle: Grade 15-5PH investment cast stainless steel
Cleat: Fibre reinforced composite
Post & hub: Grade 316 stainless steel.
Padeye: Grade 15.5PH stainless steel

Sheave Ø 60 mm
Max. Rope Ø 12 mm
Max. Cable Ø - mm
Pin Ø - mm
M.W.L. 1000 kg
B. L. 2000 kg
Weight 372 g