Cordless drill motor

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Lucille
Posts: 15
Joined: Mon Feb 20, 2017 12:04 pm

Cordless drill motor

Post by Lucille » Wed Mar 08, 2017 11:16 am

Hi there,

I want to use 4 cordless drill motors to power a mobile robot, but I need some assistance determining the thread size of the motor axis. The motor is from a B&D cordless drill and when the chuck is removed, a thread is revealed. This is almost a standard thread on all cordless drills, but I can't figure out the size/type of it in order to buy a corresponding nut.

Approximate dimensions are
- Outer diameter: 12.5 mm (0.492 in)
- Pitch: 1.3 mm (0.051 in)

I guess the dimensions correspond to an American standard. Anyone with special knowledge on cordless drills?

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