SKU: 18381174537
planetary gear

planetary gear M0.5 6x Reduction Planetary Gearset

Sale price$22.80 Regular price$25.33
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

planetary gear 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:
  1. 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
SKU: 18381174537

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SteveO
San Leandro, US
★★★★★ 5
Good storage for your ATV four wheeler.
Works great. Fits on my 2023 Canam 850 Outlander. I needed a storage compartment where I could put a few tools, gloves, flashlight and straps to seccure my cargo when not in use. It is well built and attaches firmly to the back of my front wheel well body molding. It does not interfer with my driving or leg movement. The only down side when you unzip the lid it doesn't fold back easily but it still excessable.
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Reviewed in the United States on May 24, 2025
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L. K. E.
Chelsea, US
★★★★★ 1
MEH. Not worth $40
Meh. Not sure about durability for 39.99. Seems a bit steep for what showed up at my door, hence the one star. Opening the top is clumsy and can barely open if mounted against something flat. The cheap strap setup might work in a specific ATV application, but don't buy this bag (especially for 40 bucks) if you plan to try it in any other way. The chintzy sticky velcro pads plus dumb strap and buckle design pretty much rules out clicking the bottom and top straps together for a tidy wrap-around installation. This should've been a $20 item at most.
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Reviewed in the United States on June 10, 2025
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Wade Krafft
Lexington, US
★★★★★ 5
Fantastic 😍
Fantastic storage, bought 2.
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Reviewed in the United States on October 22, 2025
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Meat Hunter
Grantham, US
★★★★★ 5
Awesome
Very sturdy, looks awesome too. I bolted mine to the plastic vs using the straps and it's way better. 4 bolts and 4 nuts and 8 washers is all it takes.
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Reviewed in the United States on November 26, 2024
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Sarah Jean
Battle Creek, US
★★★★★ 1
Cheap Junk
After a few rides on my ATV, the zipper stopped working and eventually fell apart. Return deadline has passed and it went in the trash. Spent a little more at a reputable company and I'm much happier.
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Reviewed in the United States on April 30, 2025

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