Bondtech OEM RIDGA V2

$33.50 AUD inc GST

In stock

Designed for the following Open Source extruders:

  • HextrudORT;
  • Sherpa Mini;
  • Voron Mini StealthBurner.

Includes 2x MR85ZZ 5x8x2.5mm ball bearing

Please see below for more information.

In stock

Purchase this product now and earn 34 Unique Coins!
SKU: bondtech-oem-ridga-v2Categories: , Tags: , , , , , , ,


When adapting this piece of hardware into your design, make sure to allow for a bit of axial play in both directions, in order for the filament path to retain some level of self-correction.

The bearing facing the motor face should have about 0.4 mm of material between it and the motor face in order for the plastic gear to retain as much engagement as possible.

Please contact us if you have further questions regarding integrations.

This main drive gear assembly set includes:
  • 1x 15166 OEM RIDGA Reversed Integrated Drive Gear Assembly;
  • 2x MR85ZZ 5x8x2.5mm ball bearing.
The OEM RIDGA V2 is designed to allow for maximum compatibility with the following Open Source extruders:
  • HextrudORT;
  • Sherpa Mini;
  • Voron Mini StealthBurner.

It must be used with 5x8x2.5 mm ball bearings (INCLUDED).

This RIDGA, Reverse Integrated Drive Gear Assembly, replaces the following mini drive train items:
  • Main shaft;
  • Main gear;
  • Set screw;
  • Primary drive gear.
Technical Specification
  • Shaft length: 26.6 +0/-0.05mm
  • Shaft length to support ball bearings : Main Gear side < 2.6mm – 2.8mm > drive gear teeth side
  • Filament teeth’s center to end of shaft : Main Gear side < 12.8mm – 13.8mm > drive gear teeth side
  • Number of drive gear teeth : 17
  • Drive gear teeth length : 4mm
  • Integrated drive gear Material: Hardened Steel
    Materials Compatibility:

    • Flexible : yes;
    • Rigid : yes;
    • Abrasive : yes.
  • Number of main gear teeth : 50
  • Main gear teeth length : 3mm

fbf1ce01 oem ridga v2 drawing


When assembling an extruder, the sequence of component insertion of the RIDGA differs from the multi-piece version of the classic BMG main drive gear assembly. The drive gear section of the RIDGA can’t be inserted before the gear shaft because it is integrated. Needs a wider hole to pass through.

The Open Source extruder you printed may likely need a custom integration design to support the OEM RIDGA.

Please contact the designer or author of your extruder, or consult within its community, to get help with this.

IDGA / RIDGA Compatibility Table

b2d6eddc idga ridga compatibility table

Technical Drawing

e1e223d9 oem ridga v2


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.