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Description
Ronstan 100mm Mast Base Core BlockProduct Description Ronstan 100mm Mast Base Core Block Features: High dynamic and static load capacity High load bearing system Ball bearings to counteract side thrust loads Class leading performance and sleek, contemporary styling Durable aluminium alloy cheek plates Central hub hole can be used as a becket take off or tie up point Also available in Series 45, 60 & 75 22mm (7 8") inside cheeks at head Mount with 2 x 12mm (7 16") fasteners (not
Product Description
Ronstan 100mm Mast Base Core Block
Features:
High dynamic and static load capacity
High load bearing system
Ball bearings to counteract side thrust loads
Class leading performance and sleek, contemporary styling
Durable aluminium alloy cheek plates
Central hub hole can be used as a becket take-off or tie-up point
Also available in Series 45, 60 & 75
22mm (7/8") inside cheeks at head
Mount with 2 x 12mm (7/16") fasteners (not supplied)
Full block rated load can only be achieved with uniformly distributed load across full length of clevis pin. ie. 22mm (7/8") diameter mast collar post or 22mm (7/8") wide mast collar plate/tang
Specifications:
Sheave Ø - 4 in. (100mm)
Max. Rope Ø - 3/4 in. (18mm)
Max. Cable Ø - in (mm)
Pin Ø - 1/2 in. (12mm)
M.W.L. - 7150*1 lb. (3250*1 kg)
B. L. - 16500*1 lb. (7500*1 kg)
Weight - 21.7 oz. (614 g)
Applications:
Ideal for mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats to 16m (53ft).
General applications on larger yachts.
Materials:
Bearings: High compression strength, self-lubricating acetal
Head post: Grade 2205 stainless steel
Shackles: Grade 17-4PH stainless steel
Padeye: Grade 15-5PH stainless steel
Other fixtures: Grade 316 stainless steel
Features:
Specifications:
Applications:
Materials:
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 9 reviews
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Product Reviews
★★★★★ 5
Ball
Color: Aqua
Love it. My golden doesn’t like when it runs by itself but shepherds loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
★★★★★ 3
Not all it’s cracked up to be.
Color: Aqua
Doesn’t really bounce all that much. Doesn’t really stay on either. My dobe could care less about it.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Super entertaining toy if your dog likes balls and hunting
Color: Aqua
Love this! We got a similar ball for our dog about 6 months ago and she has been obsessed! We have 2 dogs, one hasa zero interest whatsoever in this toy (as expected) and the other will bark at it while its sitting on the charger so she can get it. Dogs, amirite? lol anyway, the issue we had with the previous one was that it was so loud on our wood floors because it was a solid plastic. The Cheerble ball has made a huge difference in sound for us!
The ball itself is very quiet. When it rolls or bounces on something other than the floor you can barely hear it. With the previous ball we had, we couldn't be on the phone or watching a movie, etc if our dog was playing with the ball because it was so dang loud but this solves our problems! Its made of a hard silicone like material (thing a Nerf ball or something) so it remains quiet. The battery lasts as listed and its easy to charge. It took some time to figure out which setting our dog liked the best but after that it was smooth sailing.
My only only negative to this is that the power on/off switch is inside so you have to twist it open to turn it off and on. The ball will naturally get some saliva on it so its kinda gross to put your hands all over it once its been played with and I'd prefer a button on the outside but understand why that isn't possible with this design.
This ball is perfect if your dog is ball obsessed like ours. Shes a pitt/black lab/aussie mix so ball and hunting/chasing lizards are her favorite past times. If your dog prefers ripping toys apart to kill the squeaker (our other dog) or chewing bones, they may not take to this. Ball is life at our house and this ball is at the top of our pups list, there isn't a day that passes that she doesn't start her daily routine of seeking this out and begging us to turn it on. Highly recommend for the right pup!
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Reviewed in the United States on August 6, 2025
★★★★★ 5
Great toy
Color: Blue
Great toy, too bad my Shih Tzu is afraid of it. I love the way the movement is subtle and random.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Best toy for dogs
Color: Blue
My dog plays with this for hours!
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Reviewed in the United States on May 14, 2026
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