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Five stainless steel MK7 drive gears with 5mm bore and deep grooves for 1.75mm filament

Unique-Bargains

Unique-Bargains MK7 Drive Gear 5mm Bore 1.75mm Filament 5pcs

SKU CH-0NE8-C7925

Stainless-steel MK7 drive gear with 12 mm outer diameter, 13 mm height and 5 mm bore grips 1.75 mm filament in packs of five

  • Deep grooves grip 1.75mm filament securely
  • Stainless steel construction resists wear over time
  • 5mm bore fits standard extruder shafts directly
  • M4 thread allows firm attachment to motor
  • Pack of five gears supports multiple printers

Direct Extruder Drive Gear

This set contains five MK7 drive gears designed for direct extruder systems on 3D printers. Each gear is machined from stainless steel with a 12 mm outer diameter and a 13 mm height. The 5 mm bore fits a standard motor shaft, and M4 threading secures the gear in place.

Users with 1.75 mm filament and direct extruders

The deep grooves provide reliable grip for 1.75 mm filament in direct-drive configurations. Builders using Bowden extruders, larger filament diameters, or shafts that do not match a 5 mm bore will need different drive components.

5 mm bore specification

The 5 mm bore diameter is the critical dimension that determines whether this gear fits your extruder motor shaft. Verify your shaft size before ordering, as an incorrect bore prevents installation.

Highlights

  • Deep grooves grip 1.75mm filament securely
  • Stainless steel construction resists wear over time
  • 5mm bore fits standard extruder shafts directly
  • M4 thread allows firm attachment to motor
  • Pack of five gears supports multiple printers

Specifications

BrandUnique Bargains

Questions about this item

What filament diameter does the 12 mm MK7 drive gear grip?

The gear has deep grooves sized for 1.75 mm filament to maintain consistent feed.

What motor shaft size matches the 5 mm bore?

The 5 mm bore fits stepper motors with a 5 mm output shaft; verify your extruder uses that size.

How do I secure the gear onto the shaft?

Tighten the M4 grub screw against the flat on the motor shaft so the gear cannot slip.

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