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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Ronstan Series 40 Ball Bearing Block - Single - Universal HeadSeries 40 Ball Bearing Block Single Universal Head 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
Series 40 Ball Bearing Block - Single - Universal HeadSheaves 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
- Slotted pin shackle eliminates fouled lines
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")
Pin Ø: 5mm(3/16")
M.W.L.: 350kg(770lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 70g(2.5oz)
Manufacturer : Ronstan
Manufacturer Part No : RF40100
UPC : 9316800243891
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
4.2 ★★★★★
Based on 401 reviews
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Product Reviews
★★★★★ 5
Not chew proof but great for stimulating your dog!
Size: Large, Color: Octopus - Multi Color, Size: Large, Color: Octopus - Multi Color
8 legs gone in one night! Haha to be expected because my dog is a heavy chewer. Like other costumers we are left with a blue ball which she still plays with. It’s a great toy for days that my dog really needs to get energy out. She was so tired after, she was panting like she ran for miles. I suggest combining physical exercise with things like purposeful chewing or licking toys to tired them out. Doing this has reduced my dog’s anxiety tremendously over the years therefore reducing destruction of our furniture 😅 a tired pup is a happy pup!
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Reviewed in the United States on June 11, 2026
★★★★★ 3
It’s not for a big dog with large teeth
Size: Large, Color: Rabbit
The dogs Already chew its nose off
Didn’t last 2 days. We are trying to sew it up. It will probably end up in the trash
Thought this bunny is very cute. I’d only buy it for children to play with it. Or maybe a tiny dog.
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Reviewed in the United States on May 18, 2026
★★★★★ 1
Not durable at all
Size: Medium
Come apart easily . Very dangerous for pets.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Perfectly Fun!
Size: Medium
My girl LOVES this! I don’t know what it is…. She’s a Frenchie so maybe it’s easier for her to grip. I bought it because she loves the light up ball; but now she will only play fetch with this one. 😂
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Reviewed in the United States on June 17, 2025
★★★★★ 1
Not for heavy chewers!
Size: Medium
If you have a heavy chewer, do not buy. Mine tore it up in a matter of 20 mins. Literally in pieces.
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Reviewed in the United States on June 13, 2025