RF48140 - Ronstan Series 40 Orbit Single BB Block - Stand-Up | Aztek Computers
29+Years
SKU: ZGJOP3OORF |  Mfg. Part: RF48140  | UPC: 9316800625536  | 
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RF48140 - Ronstan Series 40 Orbit Single BB Block - Stand-Up Design

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Condition: New

$50.63 
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Product Overview

Ronstan Series 40 Orbit Single BB Block - Stand-Up Design

This innovative block features a ball-bearing design, optimally balancing strength and lightweight construction. Built with toughened, glass fiber reinforced nylon, it eliminates traditional stainless steel components for improved performance and reliability. The Series 40 Orbit Blocks™ are engineered for high dynamic and static loads, making them a versatile choice for a wide range of applications, including high-performance catamarans.

Designed for effective use in mainsheet systems, the block also includes various attachment options like soft attachment, lashing, and conventional shackle heads. The adjustable stainless steel cleat arms offer customizable cleating angles, while the integrated carbon-reinforced C-Cleat™ ensures secure rope holding with minimal friction, enabling swift and efficient trimming.

With options tailored for high load applications, including a high-strength stainless steel sheave and an advanced triple bearing race system, these blocks maintain peak performance even under substantial stress.

Expert Overview

The Ronstan Series 40 Orbit Single BB Block - Stand-Up Design, part number RF48140, is engineered for demanding applications requiring high dynamic and static load capacity. This bearing block utilizes a toughened, glass fiber reinforced nylon construction, eliminating traditional stainless steel components for a lightweight yet robust solution. Its two-stage ball bearing system is designed to minimize friction, contributing to efficient operation in various systems. The block is suitable for mainsheet systems and other high-performance applications, including catamarans. It offers multiple attachment options, such as soft lashing or traditional shackles, providing installation flexibility. The integrated carbon-reinforced C-Cleat� and adjustable stainless steel cleat arms facilitate secure rope holding and customizable cleating angles, supporting swift and efficient trimming operations.

Technical Specifications

  • Outstanding dynamic and static load capacity
  • Lightweight design with robust glass fiber reinforced nylon
  • Efficient 2-stage ball bearing system for low friction
  • Multiple attachment options: soft lashing or traditional shackle
  • Compact and low profile build
  • High-performance cleating mechanism for secure line holding

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
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  • Updated:
  • Added:
  • Ronstan
  • RF48140
  • 9316800625536
  • New
  • 0.15 lbs
  • 4 X 2 X 2
  • Jul 19, 2026
  • May 16, 2026
Product Identifiers: Brand: Ronstan • Part #: RF48140 • UPC: 9316800625536 • Category: Bearing Blocks & Supports

RF48140 - Ronstan Series 40 Orbit Single BB Block - Stand-Up Design

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Reviews for Ronstan RF48140

$50.63