Cycloidal Drive with Cross-Roller Bearing

Description

This is compact Cycloidal Drive Reducer. Fits standard Nema17 stepper motors (5mm shaft).

More detasils on Youtube (video coming soon)

Two variations are offered:

• 3D Printed
  • Fully 3D printed cycloidal drive in PETG-CF filament.
• CNC with Press-Fit Metal Pins
  • Cycloidal Discs machined in Acetal (POM)
  • Outer pins are stainless steel press-fit into the housing.

What’s included?

• Cross-Roller Bearing (XRU2512)
• Additional hardware needed (screws, bearing, bushing, standoffs, threaded inserts, shaft collar)
• 3D Printed parts in PETG-CF
• CNC Cycloidal Discs in Acetal (POM) – For respective variation only
• Assembly Instructions

Specs

• Reduction Ratio: 29:1
• Torque Efficiency: ~80%
• Backlash
  • 3DP: 1 arcmin
  • CNC: 2.5 arcmin
• Dimensions
  • 95mm diameter
  • 38mm height
• Load capability (bearing ratings):
  • Static Radial Load: 10.6 kN
  • Dynamic Radial Load: 8.61 kN
• For more details, please check the Youtube video

Assets

• Technical Drawing
• STEP file
• Assembly Instructions

FAQ

1. What is the difference between the 3D printed and CNC versions?
   1. The CNC version has both cycloidal discs machined in Acetal (POM/Delrin) plastic, and the outer pins of the drive are stainless steel press-fit pins. On the 3D printed version, both of these components are 3D printed in PETG-CF filament
2. What is the advantage of the CNC version over the other one?
   1. Longer life. Acetal is a material commonly used on gears due to its excellent material properties such as high strenght, low fatigue and low friction.
3. Can I buy the 3D files and print my own drive?
   1. Not for this particular design. There are other designs available for download which are more accesible as they do not require a cross-roller bearing.
4. What motor can I use with this cycloidal drive?
   1. Any standard Nema17 stepper motor with a 5mm shaft.
5. What assembly will be required?
   1. You will need to install the drive on your Nema17 stepper motor. Some components will come pre-installed, such as the standooffs will be press-fit into the output plate, threaded insert will be installed on the 3D pritned parts.
6. Where is the product made?
   1. Made in the USA. Some hardware sourced from China.
7. How long does shipping take?
   1. Ships within 3-5 days from placing the order.