Robot builders often find that the trickiest part of a robotics project is making
the wheels. First you need to find a suitable tire/wheel combination, then you
must figure out a way to attach a sprocket so that it will handle the torque
of a geared-down drive motor. Our wheel/sprocket/bearing combination will solve
those problems for you!
Assembled with:
Colson Performa wheel 4 x 1.5in.
Custom one-piece hub/sprocket
Bronze bearing pressed into the sprocket
Ball bearing with insider diameter of 0.5in
The inner
race of the ball bearing extends into, (but does not touch), the inside diameter
of the hub. The width of the assembly is 2.24" which fits
perfectly into our 2.25" wide modular
drive units and robot kits.
Use washers or shaft collars to locate your wheel on your axle if the axle
is wider than 2.3", (this also keeps the bearings from working their way
out of the wheel).
This combination of components weighs in at just 1.1 pounds - or 4.4 pounds
for 4 wheels. We believe that this is the lowest-cost and lightest wheel/sprocket
combination available.
5 Inch BattleKit Robot Wheel
Battlekit Single Drive Module A