Upgraded 3D Printer Extruder Level Gear and Idler Arm with Groove for Titan Aero Prusa i3 Ultimate Artillery Hornet Sidewinder X1 X2 Genius/Pro Extruder Parts (Black)

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【Upgraded Bearing】 The middle of the bearing with groove, which is beneficial to tighten the filament, especially soft filament like TPU, NEVER Skid. The other bearing hold the stepper motor, smooth.
【Plastic 66 Teeth Big Gear】 This extruder gear is made of plastic(POM) and stainless material, which is widely used in the industrial field, strong enough for feeding filament. With 66 teeth, which are treated without any burrs, which can engage the filament smoothly and quietly.
【Works for 1.75mm Filament】 It works for 1.75mm PLA ABS TPU filament, not for 3.0mm filament.
【Compatible with】 Could be used on Titan Aero Prusa i3 Ultimate Artillery Hornet Sidewinder X1 Genius Extruder.