28 3. Mounting Wheels on the Balancer GSP9700 Series Road Force Measurement System Operation
The correct flange adaptor setup is determined by:
Measure and set the bolt circle diameter and number of studs to use
against the lug holes.
Set the number of lugholes as follows:
A three-lug wheel uses three studs.
A four-lug wheel uses four studs.
A five-lug wheel uses five studs.
A six-lug wheel uses three studs.
A seven-lug wheel uses seven studs.
An eight-lug wheel uses four studs.
Choose the correct taper design of flange studs to fit the wheel lug seats.
The mounting area of the flange stud must match the design of the
wheel’s lughole seat or depression.
The flange plate must be able to apply pressure to the center of the wheel while
maintaining perpendicularity to the shaft.
NOTE: If the lug seats are unevenly machined or worn, an optional
universal flange adaptor with compressible studs or bolt on
lugs may be used to more accurately mount the wheel with
the cone.
Flange plates are useful when the wheel cannot be properly centered off the hub
bore with a tapered cone alone because of improper fit, interference, or lack of a
center hole.
A flange plate in many cases adds value because it aids in more effective centering
than a tapered cone alone. This statement is true for many wheels including hub
centric wheels. That is why a flange plate and back cone may be more accurate and
repeatable, regardless of whether the wheel is lug centric or hub centric.
Expandable Collet Mounting
An expandable collet should NOT be used with the GSP9700 due to the amount of
force applied by the load roller.
Using the Pressure Ring and Spacers
Pressure Ring
The pressure ring clips on to the wing nut. It is used in lieu of the clamping cup.
It may also be used in place of a clamping cup if space is limited between the wheel
and the end of the spindle.
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