HR Wheels
Three different
road-wheel types can be encountered on the HR Holden series.
HR Passenger wheel.
The wheel assembly of
welded construction available as part No 7431265 has 0.2” less offset than the wheel
used on HD passenger models. The reduced offset produces a wider track front
and rear. This wheel can be identified by a 3/16” dia hole drilled in the hub
section adjacent the stud holes.
HR commercial
The standard wheel
used for the HR commercial vehicles is similar to that used on HD and late EH
commercial models. This wheel is of arc welded construction and was available
as part No 7423700
NOTE :because of its greater offset this wheel
produces a narrower track than achieved with 7431265 wheel used on passenger
vehicles.
HD-HR heavy duty wheel
This wheel part No
7428468 was originally released as the heavy duty wheel for the HD series and
has subsequently been carried over as the heavy duty option for the HR. It must
be noted that this wheel because of its greater offset than that of the
standard HR passenger wheel produces reduced front and rear track dimensions
than that achieved with 7431265 wheels. For this reason when 7428468 heavy duty
wheels are fitted to HR models they must be changed in complete car sets of
five (5) wheels.
Because of the different characteristics of
each wheel type, it is most important that any change of wheels be made in
complete car sets only.
Offset
The offset of a wheel is the
distance from its hub mounting surface to the centerline of the wheel.
(Negative or Positive)