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Two stainless steel MK8 drive gears with 5mm bore and deep grooves for 1.75mm filament

Unique-Bargains

Unique-Bargains MK8 Drive Gear 5mm Bore 2pcs

SKU CH-4SMW-HEG8W

Two stainless-steel MK8 drive gears with 5 mm bore grip 1.75 mm filament for 3D printers

  • Stainless steel construction resists wear
  • 5 mm bore fits compatible extruder shafts
  • 9 mm outer diameter matches MK8 profile
  • 11 mm height suits standard drive assemblies
  • Deep grooves grip 1.75 mm filament securely

MK8 Drive Gear for 1.75mm Filament

This stainless steel drive gear fits MK8-style direct extruders and grips 1.75mm filament with deep grooves. The pack contains two gears for replacement or spare use on compatible 3D printers.

Check extruder shaft and gear profile

Verify that your extruder uses a 5mm bore shaft and accepts a gear with an 11mm height and 9mm outer diameter. The effective diameter is 7mm, so confirm the extruder design matches these dimensions before ordering.

Stainless steel construction and direct mounting

The gear is made from stainless steel for wear resistance and mounts directly on a 5mm motor shaft. The deep groove profile helps maintain consistent filament grip during printing without additional hardware.

How it compares

Measured against everything we stock in Print & Scan Accessories, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 99% of the 5,855 comparable items (median $91.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

Does the package include only the two MK8 drive gears or are mounting screws also supplied?

The package contains two MK8 drive gears made of stainless steel with a 5 mm bore. No screws or other hardware are included.

Should I choose these 5 mm bore gears for a 1.75 mm filament setup or do I need a different bore size?

These gears are designed for 1.75 mm filament and fit a 5 mm motor shaft, so select them when your extruder uses that shaft diameter.

How do the 9 mm outer diameter and 11 mm height affect fit in a standard MK8 extruder body?

The 9 mm outer diameter and 11 mm height match the MK8 form factor, allowing the gear to seat correctly in the extruder housing and engage the filament.

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