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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
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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)
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
4.6 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Keep my dog busy.
Color: Remote blue
The duraspin dog ball bounces, moves, and vibrates automatically. My Labrador chased it all afternoon and never got tired of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2025
★★★★★ 5
Durable
Color: Green
My dog absolutely loves this. Its helped us get her back into going into her crate well again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Aggressive chewer
Color: Green
Very durable and long lasting dog toy
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Reviewed in the United States on February 5, 2026
★★★★★ 5
AMAZING!
Color: Pink Blue
I have never written a review before, and I shop 4-5 days a week on Amazon. My 5 month old puppy LOVES these chew toys. When I first opened the box I was worried because they were so hard, but Poppy went crazy. He chews on them, tosses them and retrieves them, runs in circles around them and barks, and when he finally settles down will chew them and make these pig snort sounds of contentment. I have bought a lot of toys for my new puppy… But these are the best by far!
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Reviewed in the United States on June 13, 2026
★★★★★ 4
Toy broke in two
Color: Blue
This is a great toy for aggressive chewers. My reason for 3 stars is my dog dropped it on the tile floor the second day she had it and it broke in two. Not real happy with that.
Update:
The seller has been proactive and accepting of the very minor issue of the toy breaking. Responded within 24 hours and issued a refund. Because of their response I am changing my review to 4 stars.
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Reviewed in the United States on June 23, 2025