9th
September 2009 - Advice From
the Bendix Answerman: Machining New Rotors is Unnecessary
New Quality Rotors Should Simply be
Washed Thoroughly and Installed
It isn’t uncommon for techs to ask if
new rotors should be machined. The answer, according to Bendix®
Answerman Chuck Kennedy, is a resounding no: machining new rotors is
an unnecessary step that could actually lead to more problems that
might not have occurred otherwise.
“New rotors, such as those made by
Bendix, are machined on accurate and costly computer numerical
controlled (CNC) machines,” said Kennedy. “The use of a CNC machine
minimizes run-out and stack-up tolerances from multiple operations
such as those that would be needed on a bench lathe. It is highly
unlikely that the average shop has this type of CNC equipment at
their disposal.”
According to Kennedy, new rotors should
merely be washed thoroughly with soap, water and a stiff brush and
then installed. He also recommends checking old rotors to determine
the source of run-out – a step that is often overlooked. Checking
hub assemblies and axle flanges for run-out may help determine what
will happen after a new rotor is installed on the vehicle.
“New rotors cannot fix a run-out issue,
but if a thousandth or two of run-out on a rotor is clocked to
offset a small amount of run-out in a hub, this can help give the
rotor extended life and do a lot to keep pulsation issues from
arising after a short time,” said Kennedy. “Using quality brake
components means you won’t have to worry about the fit or finish,
and you can be sure your concerns are handled should any issue ever
arise.”
The Bendix team offers a full line of
rotors to help meet the needs of today’s customers.
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Bendix®
Premium Rotors are engineered to ensure proper fit and
function for quick out-of-the-box installation. They
feature an OE vane design and configuration as well as a
smooth non-directional finish that provides proper pad
and rotor contact for consistent braking performance.
And, to help prevent rust and improve aesthetics, they
include a black coating on all non-friction surfaces |
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For drivers
looking to make a statement, there are Bendix Street HP®
Rotors, which are cross drilled and feature black
coating on all non-friction surfaces to improve
appearance and help prevent rust. They also feature a
smooth, non-directional surface finish which doesn’t
require any additional machining. |
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Bendix®
Global Rotors feature full coverage for domestic and
import vehicles. An affordable option, they feature
dimension integrity and proper fit and function. They
arrive machined, balanced and ready to install. |
For more information and tech tips from
the Bendix brand, log on to www.bendixbrakes.com.
Honeywell Friction
Materials, a business unit of Honeywell International Inc., is
headquartered in Glinde, Germany. Serving both original equipment
and aftermarket customers, products offered include Bendix® and
Jurid® friction materials and hard parts.
Honeywell International
Inc. is a $37 billion diversified technology and manufacturing
leader, serving customers worldwide with aerospace products and
services; control technologies for buildings, homes and industry;
automotive products; turbochargers; and specialty materials.
Based in Morris
Township, N.J., Honeywell's shares are traded on the New York,
London and Chicago Stock Exchanges. For additional information,
please visit www.honeywell.com.
Source: Honeywell Press Release