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Ronstan RF103 Single Wire Block with Rivet Eye, 1-3/4" Nylatron Sheave

Manufacturer

Ronstan

Picture for manufacturer Ronstan

Part Number

RF103
10 reviews
04/04/2036 10:26 AM
Sale Price

$35.39

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Ronstan RF103 is a single wire block featuring a tubular rivet head design with a removable Nylatron® sheave. This compact marine block is purpose-designed for wire rope applications, with a narrow sheave profile and specialized groove geometry optimized for 5/32" maximum wire diameter.

Key Features:

  • Removable 45mm (1-3/4") Nylatron® sheave for easy installation without cutting wire terminations
  • Flared stainless steel cheeks minimize wire chafing and extend service life
  • Grade 316 stainless steel construction for superior corrosion resistance
  • Tubular rivet eye attachment point for secure mounting
  • Maximum working load: 850kg (1,870 lbs)
  • Breaking load: 1,700kg (3,740 lbs)

Specifications:

  • Sheave diameter: 45mm (1-3/4")
  • Maximum cable diameter: 6mm (1/4")
  • Weight: 88g (3.1 oz)
  • Materials: 316 stainless steel cheeks, Nylatron® sheave

Applications:

Ideal for wire halyard systems, vang controls, and backstay applications on sailboats and rigging systems where smooth wire operation and reliable performance are essential.

Products specifications

Type

Single

Diameter

1/4 Inch or 6 mm

Mount Type

Fixed Lashing Eye

Weight

0.23

Ball Bearings

Plain Bearings

Becket

No Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Non Ratcheting

Safe Working Load

1870 Pounds

Sheave Diameter

45 mm

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Very good

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