Series 40 All-Purpose Single Cheek Block
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RONSTANSeries 40 All-Purpose Single Cheek Block


In stock online.
Model # 271721 | Mfg # RF41151UPC # 9316800244331


Series 40 All-Purpose Single Cheek Block

Name Value
Ball Bearings Plain Bearings
Becket No Becket
Diameter 7/16 Inch or 11 mm
Direction Any
Integral Cleat No Integral Cleat
Mount Type Mechanical Fasteners
Ratchet Non Ratcheting
Safe Working Load 882 Pounds
Sheave Diameter 40 mm
Type Single Cheek/Foot
Weight 2.3 Ounces

Product Overview

Series 40 All-Purpose Single Cheek Block. Ronstan's 40mm plain bearing blocks are strong and compact. For dinghies and keelboats up to 26'. 1 9/16" (40mm) sheave is made from UV-stabilized acetal and accepts a line size of 7/16" (11mm). Cheek is made from stainless steel and fiber-reinforced textured Zytel. Mount type: Mechanical fasteners.


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