No name jigsaw motor rotor YVZR40WS for 400W VZR400 — replacement part

Replacement motor rotor for a 400W VZR400 jigsaw designed as a direct replacement part for the rotating armature of the tool's electric motor. This rotor restores the motor's ability to convert electrical energy into the rotational motion required for the jigsaw's gearbox and blade drive. The component is intended for repair and refurbishment of compatible 400W jigsaw units to recover original performance and extend the service life of the tool.

Advantages

This rotor is manufactured to match the dimensional and electrical characteristics of the original rotating armature used in 400W VZR400-class jigsaws, enabling straightforward replacement without extensive modification. Using a proper replacement armature helps restore motor balance and reduces vibration, which contributes to smoother blade movement and improved cutting accuracy. Replacing a worn or damaged rotor can also reduce excessive current draw and overheating, helping to protect other motor components.

Suitable for

• Repairing a 400W VZR400 jigsaw motor where the armature is worn, damaged, or burnt
• Refurbishment projects to restore second-hand or heavily used jigsaws to working condition
• Workshops and service centers performing routine motor component replacements

Key specifications

• Intended motor power class: 400 W
• Component type: rotating armature / motor rotor for handheld jigsaw
• Function: converts electrical input into rotational mechanical motion for the jigsaw drive
• Compatibility: designed for use in VZR400-series jigsaws and compatible units with matching rotor dimensions and electrical characteristics
• Typical materials: laminated steel core with wound copper conductors and commutator segments (standard construction for jigsaw rotors)

How to use

Replace the faulty rotor by first disconnecting the tool from the power supply and disassembling the jigsaw housing to access the motor assembly. Remove the brushes, motor cover, and securing fastenings, then extract the old rotor from the stator and gearbox area. Install the replacement rotor ensuring correct seating in the bearings and proper alignment with the commutator and gearbox drive components. Reassemble the motor, replace brushes if worn, verify free rotation by hand, then reconnect power and test the jigsaw under light load to confirm correct operation.

Usage recommendations

For reliable results, inspect and, if necessary, replace motor brushes and bearings when installing a new rotor. Ensure all fastenings are torqued to manufacturer specifications and perform a functional test before returning the tool to full-duty use.