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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28
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Description
planetary reduction gears M0.5 6x Reduction Planetary GearsetThis is a steel gearset for a 6x planetary gearbox, like used in the qdd100 and other Mini Cheetah style servos. It fits inside the stator of 8108 and larger sized motors. A center distance of 30. 0mm is appropriate. It includes 1 ring gear, 1 sun gear, and 3 planet gears with installed needle bearings. Ring gear specifications: 100 tooth OD: 55mm + 0 0. 05 Width: 5mm Mass: 15. 2g 42CrMo Steel HRC 25 Notional STEP File Sun gear specifications: 20
This is a steel gearset for a 6x planetary gearbox, like used in the qdd100 and other Mini-Cheetah style servos. It fits inside the stator of 8108 and larger sized motors. A center distance of 30.0mm is appropriate.
It includes 1 ring gear, 1 sun gear, and 3 planet gears with installed needle bearings.
Ring gear specifications:
- 100 tooth
- OD: 55mm +-0/-0.05
- Width: 5mm
- Mass: 15.2g
- 42CrMo Steel
- HRC 25
- Notional STEP File
Sun gear specifications:
- 20 tooth
- Tooth length: 6mm
- Overall length: 18mm
- Hub diameter: 11mm +0/-0.02
- Bore diameter: 4mm +0.02/-0.0
- Mass: 10.2g
- C-40Cr Steel
- HRC 25
- Notional STEP File
Planet gear specifications:
- 40 tooth
- Tooth length: 5mm
- Overall length: 6mm
- Hub diameter: 14mm
- Bore diameter: 10mm +0.02/-0.0
- Installed HK0608 needle bearing
- Mass: 10.9g (with bearing)
- C-40Cr Steel
- HRC 25
- Notional STEP File
Notes:
- Mounting of the sun and ring gear can be accomplished either with a shrink fit, or with adhesive.
- For mounting to aluminum, we recommend:
- slip fit
- degreasing mating surfaces with acetone
- optional abrasion
- a primer of Loctite SF7471
- Loctite 638
- 24 hour cure at 55C.
- Lubrication is required for operation under load. We recommend Sta-LUBE CRC SL3330 Moly-Graph Lithium Grease
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
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 4
Great product...wish you had color options
My dogs love these balls, but I wish you could choose the color. This is my dog's favorite toy. He can play tug of war with his siblings, and the ball usually lasts for quite awhile. Considering they are usually pretty destructive puppers, this is a minor miracle.
But, I can't just pick his favorite color and get it delivered. I have to play roulette, and pray that his color is the one that I get when I open the box. If they can allow us to choose the color(s) that we want, then this review will be upgraded to 5 stars.
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Reviewed in the United States on December 17, 2023
★★★★★ 5
A silent toy that still holds a dog’s interest
We bought this large size for our Rottweiler- but it was our 45# dog who fell in love with it. Cooper is 16, has kidney disease, dementia and loss of muscle coordination; so, it was an absolute joy to watch him engage with this toy. His foot went through the ball once, but he figured it out. He pushes it with his nose, and tries to squeak it. He “talks” to it. We haven’t heard that in a long time. It’s light enough that he can lift it - and it rolls and bounces nicely. For him it’s perfect. Our Rottie seems to understand that it’s his toy. Now, that’s love and understanding.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
A big hit!
Our Rottie loves these! I wanted something like the Jolly Ball but that is soft for inside the house. She's had a lot of fun with this, picking it up, tossing it, playing soccer, etc.
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Reviewed in the United States on May 15, 2026
★★★★★ 1
Ball fading color on outside
Ball was delivered May 2, today is May 6 , blue color is fading on the outside of ball I am concerned about the product if it is healthy for my pup. I have two other balls smaller, purchased at local pet store and red and aqua colors did not change . Be aware..tried to email company with no luck….hopefully they will see this and respond
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Perfect for Blind Dogs, Fun and Durable
Size: 2-pack, Style: Duo
My blind dog loves these Chuckit! sniff balls. She can easily sniff them out and plays fetch with them for 20 minutes a day, even running up and down the stairs.
The balls are durable, bounce well, and the bacon and peanut butter scent keeps her engaged. I do wish Chuckit! would bring back the version with a tone so we could play fetch outside more easily.
Overall, a fantastic toy for dogs that rely on scent and a fun way to keep them active.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
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