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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
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Description
Ronstan Series 20 Ball Bearing Block - Single - Loop Top BecketSeries 20 Ball Bearing Block Single Loop Top Becket 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 Can be fitted with a shackle in either of two planes to allow correct alignment of the block Applications: Dinghy control lines Dinghy Vangs Cunninghams Traveller controls Materials: U. V. Stabilized Acetal
Series 20 Ball Bearing Block - Single - Loop Top BecketFeatures:
- 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
- Can be fitted with a shackle in either of two planes to allow correct alignment of the block
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")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,210lbs)
Weight: 18g(0.6oz)
Manufacturer : Ronstan
Manufacturer Part No : RF20111
UPC : 9316800255535
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Well made.
Color: Black, Size: 6 FT
I bought a version this product maybe for years ago. Suffice to say that the outlets were too loose. The plugs rattle around and regularly lost electrical conduct. Not a problem with these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 4
nice fit and powerful
Color: Black, Size: 6 FT
is pretty powerful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Great quality
Color: White, Size: 6 FT
Works as anticipated and easy directions to follow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
Measure first saves time!
Color: White, Size: 6 FT
I liked the product but didn’t fit my vanity and my wife said to send it back that it wasn’t needed for her hair dryers. Great idea just wrong for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Good power and function
Color: Black, Size: 6 FT
Bought 2 of these for a built in desk in my home office. Installed 2 weeks ago and works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
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