Hobbed Drive Roller for SeeMeCNC EZR Extruder

The SeeMeCNC Hobbed Gear filament drive roller for the EZR Struder is better than ever!  We manufacture these steel drive rollers to precise dimensions in-house using our own teeth forming techniques.  In January of 2018, we slightly improved our design of the formed teeth for even better filament driving. The hobbed drive gear fit stepper motors with 5mm shafts and feature a set screw to securely lock onto stepper motor shafts.    Technical Specifications 5mm I.D. Center Hole 12mm Length 12mm O.D. 12mm Length 11mm Pitch Diameter of Hobbed Groove M3x.5 tapped hole 3mm long set screw CR steel Tools needed for installation: 2mm Hex Key Allen Wrench (not included)  Hob gears or printers purchased before December 15, 2019, will need a 1.5mm hex wrench.   Compatibility SeeMeCNC EZR Struder OEM factory replacement SeeMeCNC EZ Struder OEM factory replacement fits precision 5mm shafts   Manufactured by SeeMeCNC in the U.S.A.