Ronstan Series 40 Ball Bearing Block - Single - Stand Up

Ronstan

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SKU:
RF40140-55211
UPC:
9.3168E+12
Weight:
0.20 LBS
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Series 40 Ball Bearing Block - Single - Stand Up

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.

Features:
  • Low friction Acetal or Torlon® bearing system
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance
  • Captive Lock™ universal head
  • High static and dynamic load capacity


Applications:
  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')


Materials:
  • U.V. Stabilized Acetal sheaves
  • Acetal ball bearings
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel load strap and head fitting


Specifications:
Sheave Ø: 40mm(1-9/16")
Max. Rope Ø: 10mm(7/16")
M.W.L.: 350kg(770lbs)
B. L.: 800kg(1,7600lbs)
Weight: 71g(2.5oz)

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April 21, 2025 by ROG L. (United States)
“Easy to navigate website and exact product specs shown clearly for hard-to-find light bulbs.”
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April 20, 2025 by Douglas J. (South Carolina , United States)
“Original light was discontinued and a replacement light was suggested. It looked and worked great.”
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April 16, 2025 by Howard A. (United States)
“Pricing best we could find, and just what we were needing”