• Ronstan RF48000 Series 40 Orbit BB Sheave, 1-9/16-Inch Sailboat Block Replacement
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Ronstan

Ronstan RF48000 Series 40 Orbit BB Sheave, 1-9/16-Inch Sailboat Block Replacement

Ronstan RF48000 Series 40 Orbit BB Sheave, 1-9/16-Inch Sailboat Block Replacement

97304

$37.97 USD
$37.97 USD
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Series 40 Orbit BB Sheave

Ball Bearing versions incorporate the 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.

Specifications:

  • Sheave
  • Captive BB
  • Width: 15.5mm/5/8"
  • Sheave Diameter: 40mm/1-9/16"
  • Maximum Rope: 10mm/3/8"
  • M.W.L.: 400kg/880lbs
  • Weight: 30g/1.1oz

The Ronstan RF48000 Series 40 Orbit BB Sheave is a ball-bearing sheave designed for sailing hardware applications requiring smooth, low-friction rope movement. Its two-stage bearing system uses ball bearings to minimize friction, while a secondary full-contact bearing helps maintain low friction across the full working load range.

Designed for use with sailing blocks and related marine rigging hardware, this captive ball-bearing sheave accommodates rope up to 3/8 inch. The compact 1-9/16-inch sheave diameter and 5/8-inch width make it a practical replacement or component for compatible Series 40 Orbit systems. With a maximum working load of 880 pounds, the Ronstan RF48000 supports demanding sailing applications within its rated specifications.

Key Features

  • Two-stage bearing system: Combines ball bearings with a secondary full-contact bearing to help minimize friction across the working load range.
  • Captive ball bearing: Provides a purpose-built bearing configuration for smooth operation in compatible Series 40 Orbit hardware.
  • Rope capacity: Accepts rope up to 3/8 inch for common marine rigging applications.
  • High working load: Rated for a maximum working load of 880 pounds.
  • Compact marine component: Offers a 1-9/16-inch sheave diameter and weighs approximately 1.1 ounces.

Product Details

  • Brand: Ronstan
  • Part number: RF48000
  • Product type: Series 40 Orbit BB sheave
  • Bearing type: Captive ball bearing with secondary full-contact bearing
  • Sheave diameter: 1-9/16 inches
  • Width: 5/8 inch
  • Maximum rope size: 3/8 inch
  • Maximum working load: 880 pounds
  • Weight: 1.1 ounces

Choose the Ronstan RF48000 Series 40 Orbit BB Sheave when you need a compact, low-friction sheave for compatible sailing and marine rigging hardware.

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