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777717-520
The Veeder-Root 777717-520 is a mechanical hubodometer that mounts to a wheel hub to track mileage on commercial trailers and trucks. It counts distance traveled based on wheel revolutions and is calibrated for 295/75R22.5 standard tread and 275/80R22.5 low tread tires. The hermetically sealed, die-cast zinc housing is filled with inert gas and protected by double O-rings, making it resistant to moisture, dust, and shock. You replace it when the old unit fails or readings become inaccurate, ensuring precise maintenance, leasing, and compliance records.
Mechanical hubodometer with a 520 revolutions-per-mile ratio. Must match the tire rolling circumference on the axle where it is installed. Fits most standard axle end hubs on heavy‑duty trailers and trucks using the specified tire sizes.
Part Number: 777717-520
HUBOMETER 295/75R22.5
Unit: ea
Dealer: Knox Trailers
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