Pinion Gear G0.4-3.6-3.5-7T for 1.5 mm Shafts (7 Teeth, Replacement for Märklin Drives)

The metal pinion G0.4-3.6-3.5-7T is designed for model railway drives with 1.5 mm shafts. The 7-tooth gear transmits the motor torque reliably to the mating gear and is suitable for repairs, conversions and custom drives for locomotives and vehicles.

Dimensions:

• Module: 0.4
• Bore (inner diameter): 1.5 mm (tolerance +0.05 mm, −0 mm)
• Outer diameter: 3.6 mm
• Length: 3.5 mm
• Number of teeth: 7

The precision-machined bore allows a play-free fit on shafts with 1.5 mm diameter. The compact outer diameter of 3.6 mm and the length of 3.5 mm make the pinion suitable for gearboxes with very limited installation space.

Properties and benefits of the pinion:

• fine 0.4 module tooth profile for smooth, even running
• 7-tooth pinion for finely stepped gear ratios in compact drives
• small 3.6 mm outer diameter for tight installation conditions
• precisely machined bore for a secure, low-play fit on 1.5 mm shafts
• suitable as a replacement for various Märklin drives with 7-tooth pinions (depending on the model)
• ideal for repairs, conversions and custom drives in model railway applications

Together with a suitable mating gear, the pinion ensures quiet and precise power transfer from the motor to the drivetrain.

Handling notes:

• Always push the pinion straight onto the shaft without excessive force to avoid damaging the bore.
• Deburr the shaft ends slightly if necessary so the pinion can be pushed on cleanly.
• Align the pinion carefully to achieve the lowest possible runout.
• If necessary, secure the connection to the shaft with a fast-curing metal adhesive to reliably prevent twisting or slipping.