How to Replace a Galvanized Axle on Your eitech Model

Quick answer

To replace a galvanized axle on your eitech model, first identify the correct axle length (105 mm or 120 mm), then carefully remove the old axle by unscrewing any retaining brackets, slide in the new axle, and re-secure all connections.

Step-by-step axle replacement

1. Step 1: Remove the old axle: Unscrew any brackets, clips, or retaining plates that hold the axle in place. Gently slide the axle out from one side. If it is stuck, apply light pressure with a plastic tool—never force it, as this can bend the frame. Checkpoint: If the axle does not slide out easily, look for hidden set screws or locking collars you may have missed.
2. Step 2: Compare the old and new axles: Lay the old axle next to the new galvanized axle. Verify that the length matches exactly (105 mm or 120 mm) and that the diameter is the same (4 mm). The new axle should be straight and free of burrs. Checkpoint: A length difference of even 2 mm can cause wheels to bind or fall off. Measure twice.
3. Step 3: Insert the new axle: Slide the new galvanized axle through the mounting holes from the same side you removed the old one. Ensure it passes through all bearing points or bushings without resistance. Reattach any brackets or clips you removed earlier. Checkpoint: Spin the axle by hand after installation—if it feels gritty, check for debris or a bent axle.
4. Step 4: Test the movement: Attach any wheels, gears, or pulleys that were on the old axle. Tighten all set screws or retaining rings. Rotate the assembly manually to confirm smooth motion. If the model uses a motor, run it at low speed first. Checkpoint: A wobble or clicking sound usually means the axle is not fully seated or a set screw is loose.

Recommended replacement axles

• Axle 4x105 mm professional, galvanized: The eitech Axle 4x105 mm professional is a galvanized axle from the Manufaktur range, SKU 01359P. Its 105 mm length is ideal for standard eitech builds, and the galvanized finish ensures long-lasting smooth rotation.

  

• Axle 4x120 mm profile, galvanized: The eitech Axle 4x120 mm profile is a galvanized accessory from the Manufaktur range, SKU 01357P. Choose this 120 mm axle when your model requires a wider wheelbase or extra clearance for moving parts.