option for foam wheel mounting. These aluminum hubs
use a main body with a slide-on plate to compress the
foam wheel and a snap ring to hold it all together. These
hubs allow for quick tread changes should the tread be
worn or damaged, and are still very light weight. The
design of these hubs also allows for a wide range of
shaft sizes as the hub can be bored out to fit whatever
size shaft your gearmotor of choice uses. This hub does
put the shaft more at risk of damage since it doesn't
absorb as much energy as the Lite Flite/Lite hub combo.
However, the hub is small enough that it is possible to
protect the hub from impacts without
sacrificing too much weight.
Lite Flite
With Dave's
Hub
Diameter:
1. 5-5 inches
Tread Width:
0.710-1.5
Weight: 9 g
(hub only)
Cost: $20.99
(pair, hubs only)
Comments: Dave's Hub and the Snap hubs interface
with the foam wheel in essentially the same manner, but
the means of doing so on the Dave's Hub (compression
plate screwed to hub) does limit the length of the shaft,
making it impossible to support the shaft on the outside
of the wheel. Some gearmotors are able to handle that
sort of load, but if you do need to support your shaft
you'll have to do it between the gearbox and
the wheel.
West Coast Products Live Axle Hub
Diameter: 3-6 inches
Tread Width: 1.5 inches
Weight: 0.15 lb
(hub only)
Cost: $7.99
Comments:
This live axle hub is
designed specifically for a
1/2" hex shaft instead of
the more common keyed
round shaft. Like the NPC
drive wheel, this hub uses
a Colson Performa wheel that has had the hub pressed
into it. If you decide that you want either a gearbox or
driven shaft with a hex output, this is one of the only
options. The design is simple and robust, so if your
design calls for this form of mounting it should be a
reliable and low cost option.
Hope this lists helps you get the bot parts you’re
really hoping for! SV
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30 SERVO 12.2013