Cycloidal Drive with Crossed-Roller Bearing

Description

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

More details on YouTube.

Two variations are offered:

• 3D Printed
  • Only the Crossed-Roller Bearing will be shipped.
  • Files for 3D printing (STEP format) will be available for download.
  • BOM for sourcing other components will also be available for download.
• CNC with Press-Fit Metal Pins
  • Complete kit with all components and hardware will be shipped.
  • Cycloidal Discs machined in Acetal (POM).
  • Outer pins are stainless steel press-fit into the housing.

What’s included?

3D Printed Version

• Crossed Roller Bearing (XRU2512)
• 3D files in STEP format (available for download after purchase)
• Bill of Materials with details on all other hardware (available for download after purchase)
• Assembly Instructions (available for download after purchase)

CNC Version

• Crossed 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)
• 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

Warranty

If you need to make a return, simply ship the item back within 14 days of receiving it. As long as the product is in good condition, we will issue a refund.

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.
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 strength, low fatigue, and low friction.
3. Can I buy the 3D files and print my own drive?
   1. Yes. Choose the 3D Printed version and you will only receive the Crossed Roller Bearing; all other components will need to be 3D printed and sourced by you.
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 for the CNC version?
   1. You will need to install the drive on your Nema17 stepper motor. Some components will come pre-installed, such as the standoffs being press-fit into the output plate, and threaded inserts installed on the 3D printed parts.
6. Where is the product made?
   1. Made in the USA. Some hardware is imported.
7. How long does shipping take?
   1. Ships within 3-5 days of placing the order.