TM 9-2330 -326 -14&P
Basically a driveless, mechanical meter, hub mounted odometer. The name Hubdometer
is actually a registered trademark name for a specific STEMCO product.
The accuracy of the Hubdometer is plus or minus 2%.
It is specifically calibrated to a tire size, make and model and to the mid-life of the tire
tread, not the depth of new tire treads.
To prelude the mechanically curious from opening the Hubdometer case to find out how it
works the following is provided, which contains the following:
An independent main shaft to protect it from front (face) damage.
A spring-loaded counterweight to reduce spin.
A brass on steel worm gear.
An externally pinioned odometer mechanism usin g low friction molded components.
The case is hermetically sealed to prevent moisture from getting in.
The Hubdometer works basically the same as the odometer in a car except that it is not
driven or electrical. It is an independent mechanical device.
There are three basic ways to mount the Hubdometer:
As a single component hubcap with the Hubdometer
As a mount on to a hubcap.
On a universal mounting bracket that is bolted to the hubcap.
It may be used either "wet" (oil) hubs or "dry" (grease) hubs.
What if you have to replace a Hub?
If a new Hubdometer is installed, will it read zero miles, and will the original mileage from
the old Hubdometer be lost?
Although true, there is a way to preclude this problem. When ordering the new
Hubdometer from the manufacturer request that the mileage be set to what was registered
on the old Hubdometeer. There is normally a nominal fee for this but it is well worth the
cost n order to keep a running record of mileage and service intervals, no up-dates or