CW71025 - Ronstan Series 15 Ball Bearing Utility Block | Aztek Computers
29+Years
SKU: CYDWLI1QRM |  Mfg. Part: CW71025  | UPC: 9316800555185  | 
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CW71025 - Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block

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Condition: New

$41.24 
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Product Overview

Series 15 Ball Bearing Utility Block - Pivoting Lead Block

Features:

  • Smallest and lightest ball bearing block available
  • Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction
  • Single loop head blocks include an O-ring to separate running line from head lashing or fixing

Featuring a 4-point fastening for load distribution and low profile. Can be mounted without disassembly.

Applications:

  • Dinghy control lines
  • Vangs, cunninghams and tweakers
  • Shock cord tensioning systems

Materials:

  • BB sheaves: UV stabilized acetal
  • Ball bearings: Stainless steel
  • Cheeks: Grade 316 stainless steel

Expert Overview

The Ronstan Series 15 Ball Bearing Utility Block, part number CW71025, is a compact and lightweight pivoting lead block designed for various control line applications. It features a precision-molded acetal sheave on stainless steel ball bearings, ensuring low friction and reliable performance. This utility block is suitable for IT environments and industrial settings requiring precise line management, such as in automation systems or specialized equipment where space and weight are critical factors. Its 4-point fastening system allows for secure, low-profile mounting without requiring disassembly, distributing load effectively. The single loop head blocks incorporate an O-ring to maintain separation between the running line and the lashing or fixing point. This product addresses the need for efficient and durable line control in systems like dinghy control lines, vangs, cunninghams, tweakers, and shock cord tensioning systems.

Technical Specifications

Gadgets & Other Electronics

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Ronstan
  • CW71025
  • B07DF6WNWS
  • 9316800555185
  • New
  • 1 lbs
  • 4 X 1 X 2
  • Jul 19, 2026
  • Apr 15, 2021
  • AUSTRALIA
Product Identifiers: Brand: Ronstan • Part #: CW71025 • UPC: 9316800555185 • ASIN: B07DF6WNWS • Category: Business & Industrial

Frequently Asked Questions

What are the primary applications for the Ronstan Series 15 Ball Bearing Utility Block?

This utility block is designed for applications such as dinghy control lines, vangs, cunninghams, tweakers, and shock cord tensioning systems, where precise and low-friction line management is required.

What materials are used in the construction of this utility block?

The BB sheaves are made from UV stabilized acetal, the ball bearings are stainless steel, and the cheeks are constructed from Grade 316 stainless steel, ensuring durability and performance.

Can this block be mounted without disassembling it?

Yes, the Ronstan Series 15 Ball Bearing Utility Block features a 4-point fastening system that allows for mounting without disassembly, facilitating a low-profile installation and effective load distribution.

What is the function of the O-ring on the single loop head blocks?

The O-ring on single loop head blocks is included to separate the running line from the head lashing or fixing, helping to maintain organization and prevent entanglement.

CW71025 - Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block

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$41.24