# Concave gear wheel, MK7, 12x5x13mm, steel

> Concave gear wheel MK7, made of steel, for the filament pusher of MK7 extruders. Outer diameter 12mm, length 13mm, inner bore for a 5mm shaft, secured with an M4 set screw. Compatible with 1.75mm filament, providing stable drive and uniform filament feeding.

- Page: https://sigmanortec.ro/en/concave-gear-wheel-mk7-12x5x13mm-steel
- Price: 5.03 RON
- Availability: In stock; 1-2 zile
- Reference: 9348 · EAN: 5943399303220
- Category: 3D and CNC printers > Extruders
- Specifications: Material: Otel
- Package (shipping data): 0.003 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:33 (Europe/Bucharest)

## Description

Concave filament pusher wheel, ideal for MK7 extruders, ensures stable drive and uniform feeding of 1.75mm. Made of steel for wear resistance, has an outer diameter of 12mm and a length of 13mm, mounts on a 5mm shaft and is securely fixed with an M4 grub screw.
Concave wheel for filament pusher, compatible with MK7 extruder, made of steel.
Specifications:
Inner hole diameter: 5mm
Fixing method on the shaft: M4 headless screw
Outer diameter: 12mm
Length: 13mm
Compatible filament: 1.75mm