SKU: 34503355939

Ronstan Series 20 Ball Bearing Block - Single

$20.83 $23.14
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Ronstan Series 20 Ball Bearing Block - SingleSeries 20 Ball Bearing Block Single Features: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction Applications: Dinghy control lines Dinghy Vangs Cunninghams Traveller controls Materials: U. V. Stabilized Acetal sheaves Stainless steel ball bearings Grade 316 stainless steel load strap and head fitting Impact and UV

Series 20 Ball Bearing Block - Single

Features:
  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction


Applications:
  • Dinghy control lines
  • Dinghy Vangs
  • Cunninghams
  • Traveller controls


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


Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
Pin Ø: 3mm(1/8")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,210lbs)
Weight: 20g(0.7oz)
Manufacturer : Ronstan
Manufacturer Part No : RF20100
UPC : 9316800255504
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34503355939

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Lisaura
Belleville, US
★★★★★ 1
Low quality
Size: 8.5 Wide, Color: Cognac, Size: 8.5 Wide, Color: Cognac
Starting to peel after a few uses
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Reviewed in the United States on June 3, 2026
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JCINTL
Whiting, US
★★★★★ 5
Elegant color, handsome, and sharp wear
Very nice quality, versatile color, very sharp and handsome to wear
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Reviewed in the United States on June 8, 2025
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William Lancaster
Grantham, US
★★★★★ 5
Love these shirts
These shirts feel so soft and good to wear.
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Reviewed in the United States on September 1, 2023
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BangAndOlufsen
Port Orchard, US
★★★★★ 5
Great fit and material
I love these soft cotton polos! So comfortable and fit perfectly. I checked the tags and stitching and they are authentic Ralph Lauren polos!
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Reviewed in the United States on October 13, 2019
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Elvis M.
Cuba, US
★★★★★ 3
Fades easily
Size: X-Large, Color: Ralph Lauren Black
It starts fading after a few washes
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Reviewed in the United States on August 25, 2025

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