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Ronstan Series 30 Control End, Single Sheave & Becket
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Ronstan Series 30 Control End, Single Sheave & Becket

RONRC13085
Ronstan
List: $251.94
Price: $214.15

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    Product Description


     

    Features:
    Class leading performance and sleek, contemporary styling
    Excellent dynamic and high static load performance
    Less than half the friction of the nearest competitor
    Removable becket pin for fitting of pre-spliced lines
    ** Line load through cleat not to exceed 175kg (385lb)

    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. Applications
    Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 12m (40ft).
    Various control line applications on larger yachts.
    Alloy sheave models are available for use with wire.

    Materials:
    Sheave: U.V. stabilised Acetal or anodised aluminium (AW models)
    Cheek plates: Aluminium alloy
    Ball Bearings: High compression strength carbon black Acetal




    Technical Information


    Specifications
    Imperial Metric
    Length 4 1/2" 115 mm
    Maximun Working Load 1490 lb 675 mm
    Breaking Load 2980 lb 1350 mm
    Weight 11.1 oz 315 g

    Product Description

    Control ends with high performance Torlon® ball bearing sheaves are used with mainsheet traveller and genoa sheeting systems to create purchase systems for easy adjustment of car position under load. Control end sheaves are 50 mm (2") diameter and suit up to 8 mm (5/16") rope.

    • Alloy body.
    • Grade 316 stainless steel cheeks.
    • Alloy sheave.
    • Torlon® ball bearings.
    • Rubber buffers.

    Application:
    Mainsheet systems on boats to 17 m (56 ft), self tacking jib sheet systems on boats to 11 m (36 ft), genoa sheet systems on boats to 17 m (56 ft).

    Part Number: RC13085




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