Home' Australian Automotive Aftermarket Magazine : Australian Auto Aftermarket e-Zine - March 14 Contents AUTOMOTIVE AFTERMARKET MAGAZINE MARCH 2014 87
BRAKE & CLUTCH
Grind your own Flywheels... ACS has the solution
Australian Clutch Services (ACS) has answered the call from their dealer network
and workshops alike with ACS now distributing the Van Norman Flywheel Grinders
The Grinders are an excellent investment for workshops with the possibility of earning a quick return on the
grinder. The Van Norman grinders are a fast set up and easy to operate, they come with an exclusive solid cast table
support, which eliminates any deflection. The grinders have a direct drive eliminating any belts or chains, making
them an affordable asset.
The grinders are easy to install with ease in setting the machine up correctly and accurately. The grinder will
service most automotive and light truck flywheels in as little as 5-10 minutes. Some grinders available also feature
an auto grind function, which is not only easy to set and to use but will also increase productivity.
The grinder can also be used for centre plates, flat, recessed, stepped and heavy duty truck flywheels up to
450mm in diameter.
ACS stocks a large range of flywheel grinding accessories as well, which includes grinding wheels and coolant.
For more information on the Flywheel grinders please contact the friendly team at ACS on 1800 CLUTCH (1800 258 824).
Schaeffler innovates yet again with detent bearings for
double clutch transmissions
Today’s state of the art double clutch transmissions have attracted a high level of global attention as they
increasingly lead the automotive industry to develop new and efficient design envelope solutions.
With many double clutch transmission designs, there simply isn’t
enough space to apply the locking contours to the gearshift forks and
install the detent pins within the transmission housing. Schaeffler, a leader
in engineering innovation, has developed an integral solution for the
bearing support of gearshift elements without affecting the design
This has been achieved with a new Schaeffler detent bearing, a design
that offers an alternative solution for locking gearshift forks when the
available design space and using conventional detent pins and locking
contours is difficult.
The new Schaeffler detent bearing combination comprises of a locking
function and a bearing for rotary and linear motion, providing an interesting
alternative for automotive designers, as detent bearings can be integrated
into both the outer and centre walls of transmissions.
Balls used as rolling elements are guided in the stationary cage and
ensure a low level of friction in the bearing support. The thin-walled, deep-
drawn cup serves as a raceway for the rolling elements at the same time.
The integrated spring functions as the detent pin and locks the shifting
movement into place by means of the contours on both sides of the shift
rod. The spring is pre-loaded in order to generate a specific retention force
that can be adapted to suit specific performance requirements.
According to Stanislav Massini, Director of Advance Development and
Mechatronics at Schaeffler Shift Systems Product Line: “The new detent
bearing design complements the Schaeffler product portfolio and allows
our customers to be more flexible when defining transmission
specifications. Even after four million load cycles, which equate to more
than double the operating life of a gearshift fork, no wear of any kind is
visible on the component. The detent bearing continues to function
without any problems.”
The characteristics of the new detent bearing correspond approximately
to those of a conventional solution, such as a rolling bearing support, plain
bearing ball detent pin and locking contour, thus making it a significantly
better solution compared to designs that use plain bearings.
The level of integration can be further increased by implementing a
sensor in the detent bearing if the gear position of the gearshift fork also
has to be detected and the shift travel measured. Measurement takes place
in the bearing itself, resulting in high linearity and measurement accuracy.
The integrated connector can be connected both inside and outside of the
transmission. This sensor bearing is particularly suited to use in automated
manual transmissions such as DCTs and ASGs. The sensor bearing is
currently being tested and has returned excellent results.
For more information visit www.schaeffler.com.au
Schaeffler’s new detent bearing offers an integral solution for the bearing support of gearshift
elements without affecting the design envelope.
The level of integration can be further increased by implementing a sensor in the detent bearing if
the gear position of the gearshift fork also has to be detected and the shift travel measured.
AM MARCH 2014 - FINAL:AM MAGAZINE SHELL 21/3/14 10:15 AM Page 87
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