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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Ronstan Series 40 Ball Bearing Block - Single - Stand UpSeries 40 Ball Bearing Block Single Stand Up 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 - Stand UpSheaves 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
- High static and dynamic load capacity
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")
M.W.L.: 350kg(770lbs)
B. L.: 800kg(1,7600lbs)
Weight: 71g(2.5oz)
Manufacturer : Ronstan
Manufacturer Part No : RF40140
UPC : 9316800244379
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 2466 reviews
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Product Reviews
★★★★★ 5
Dogs give the Y a 10 out of 10!
It seems like all dogs love these Y bones. It is not messy and its a dog favorite. Paid for many Y bones in the store but it is a little more going to a pet store. So tried online. Didn't disappoint! Cant have enough in my pantry. 😀
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Reviewed in the United States on May 21, 2026
★★★★★ 3
My Dog Loves It, But Be Careful
My dog absolutely loves the Benebone Wishbone Chew Toy—he gets so excited every time I bring it out. It’s clearly made for aggressive chewers and is very durable, but he often ends up hurting his teeth while chewing on it. I wish it were a bit gentler on his mouth. Great for keeping dogs entertained, just watch out if your pup has sensitive teeth.
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Reviewed in the United States on January 21, 2026
★★★★★ 5
My dogs LOVE these over the leading brand!
My dogs LOVE these chew bones! They will chew on these things for 30 minutes straight. They will dig them out from the dog basket, or whine at the door if they left it outside. I ended up having to get all 4 of my dogs each their own it was so popular. The white bone in the picture is the from the leading brand and you can see which one they go for, lol. They've had these bones for 6 weeks now and chew on them daily, and multiple times throughout the day. If your dog is a chewed or puppy, definitely give these a try!
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Keeps active dog busy
Color: Basic
Awesome interactive toy(ball) keeps our shepherd lab mix occupied for quite sometime
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Reviewed in the United States on February 4, 2026
★★★★★ 1
Bummed
Color: Basic
Way smaller than expected so I gave it to a friend with a smaller dog. It lasted all of 2 days and it was destroyed. Not chew resistant at all.
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Reviewed in the United States on April 13, 2026