Getting started
1lb Kits
3lb Kits
12lb Kits
Bot Hockey
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Cordless Hubs
2835 Motor Mount
550 Drill motors
Drill Motor Mounts
HF Motor mounts
Hubs - 24mm Banebots
B16 Mounts
Spark Mounting Plates
1000 rpm Motors
1000rpm Mounts
Ant and Fairy motors
Battle Harden
4WD drivetrain
Beetle Blades

Hubs for Cordless drills

I developed these hubs as a solution to recurring problems with the wheels coming off my 12lb Robot "Surgical Strike".

They are designed an easy solution to the problem of mounting a 3", 4" or 5" x 7/8" Colson wheel onto a standard cordless drill motor and gearbox. These wheels can be obtained from the Robot Marketplace

A 1" hex flange performs two functions. Firstly it stops the wheel sliding inwards off the hub. The second function is to allow the use of a 1" wrench to help remove the hubs from the gearbox axle.

The straight knurl on the surface of the hub prevents the wheel spinning on the hub. The hubs we used before had plain surfaces and the wheels would loosen up over time.

Finally a large custom washer is used together with the usual left hand thread screws that come with the drills. This prevents the wheel sliding outwards off the hub.

Servo Magazine article about how to make them if you were so inclined.

Drawing of the hub

Drawing of the washer

3D IGS file of the hub.

3D IGS file of the washer

We recommend the use of an anti-seize grease on the thread of the motor and Loctite thread locking compound on the securing screw.