![Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount [RF20151A]](https://cdn.shopify.com/s/files/1/0469/0945/6544/files/55136XL.jpg?v=1773644602)
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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount [RF20151A]Series 20 Ball Bearing Block Single Cheek Rivet Mount Features: Low friction High static and dynamic load capacity Lightweight Suitable for screw or pop rivet mounting 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
Series 20 Ball Bearing Block - Single - Cheek Rivet Mount
Features:
- Low friction
- High static and dynamic load capacity
- Lightweight
- Suitable for screw or pop rivet mounting
- 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")
M.W.L.: 200kg(440lbs)
B. L.: 550kg(1,210lbs)
Weight: 17g(0.6oz)
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
4.9 ★★★★★
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Product Reviews
★★★★★ 5
Awesome quality!
Color: Lavender Heather, Size: Medium
Great quality, well made, midweight, and very soft inside.
I bought 2 differnet colors. Very happy with the quality of MAELREG and will keep buying their products.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Love this 1/4 zip
Color: Lavender Heather, Size: 3X-Large
I needed to replace some older 1/4 zips and ordered this with some others. This one by far is the best I received. It's comfortable, stylish and keeps me warm without being too warm.
I came back and bought a couple more in different colors.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Nice
Color: Lavender Heather, Size: Large
👍
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Reviewed in the United States on March 31, 2026
★★★★★ 5
Jazzy shirt
Comfortable fit
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Husband approved
Color: Misty Blue, Size: Large
This is a lightweight and perfect for golf! Looks like a much more expensive golf shirt. My husband loved it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025