Performance Lubricants
Lubrication Points for Automotive Bearing Applications

Product Information
High Performance Lubricants That Work in
Demanding Real-Life Applications
Reliable high-performance fluoropolymer lubricants from
Chemours can stand up to even extreme conditions. Krytox™
oils and greases have proven scientific and technicalproperties to help solve the most critical issues in theautomotive industry. Superior product performance,lower overall maintenance systems cost, and a lower
environmental footprint help to meet rising consumer
expectations. For automotive manufacturers, this provides
the opportunity to offer extended warranties and enjoy
improved productivity through reduced component failure.

Krytox™ oils and greases are based on perfluoropolyether (PFPE)
oils. These synthetic fluorinated lubricants are used in extreme
conditions, such as continuous high temperatures up to 288 °C(550 °F), and higher temperatures for shorter periods, depending
on product grade limits. Krytox™ oils and greases are exceptionallysafe, reliable, and offer environmental benefits as well as longer
lubricant life. These oils and greases will not burn or support
combustion, even in 100% liquid or gaseous oxygen, nor will they
degrade or break down in the presence of aggressive chemicals.
In automotive applications, Krytox™ oils and greases deliver low
temperature starting performance, while maintaining efficacy at
higher temperatures. These oils and greases can increase service
life of critical components, allowing them to run more quietly andlast longer, for superior, reliable performance.

Clutch Pilot Bearing
Heavy Duty Truck
Auto-Clutch

Windshield WiperMotor
Super Charger
LubricantAlternator
Electronic Parking Brake
Mechanism
Cooling SystemThermostat

Exterior Side View MirrorMechanism

Fan Clutch
Engine/Turbo
Cooling System

Battery Vent
Seals
O-RingLubrication/
Assembly Line

Minivan Side Door
Motor Clutch

Cooling Fan
EGR Valve

Spark Plug BootsPerformance Lubricants

Krytox™

Krytox™ Oils and Greases

Viscosity, cSt

Temperature Range, °C (°F)

GPL 204, GPL 214, GPL 224, GPL 294, GPL 2E4, XP2A4

60–51–179 (–60–354)

AUT 2E45, AUT 2245, AUT 2045, AUT 2A45

100

–40–200 (–40–392)

GPL 205, GPL 215, GPL 225, GPL 295, GPL 2E5, XP2A5, XP2C5

160–36–210 (–33–410)

Krytox™—Products for the Automotive Industry

Clutch Pilot Bearings

Several grades of Krytox oil and grease are suitable for
automotive use, depending on the application type andtemperature range encountered. The table above lists themost common grades currently being used. More detailed
data is available on the web at www.krytox.com.

Proven Applications

The pilot bearings support the clutch-end of the transmission
shaft. If the lubricant in the pilot bearing fails, thetransmission itself will fail. Pilot bearings lubricated withKrytox™ high performance lubricants will last longer andperform better than those lubricated with other synthetic
lubricants, due to the high-load capability and chemical
inertness of Krytox™ products.

Fan Clutch

Cooling Fan

A thermostatically controlled fan clutch typically drives
the cooling fan. The bearings that support the drive shaft
for this clutch regularly experience high temperatures. If
these bearings wear and begin to fail, the cooling fan runs
less efficiently. When this occurs, the engine can overheat,
and any resistance in fan clutch rotation can drain valuable
power from the engine’s drive shaft, further reducing overall
performance. Krytox™ lubricants have low volatility and highviscosity, providing long life and excellent lubrication to thefan clutch bearing under these high temperature conditions.

To maximize performance, an automobile’s engine must run
at its optimal temperature (typically around 93 °C [200 °F]),
which is controlled by the cooling system. One componentof the system is the cooling fan, which blows air through theradiator, removing excess heat. Failure in the cooling fan’sbearings leads to failure of the fan, which will eventually
result in overheating of the engine. The sintered bearings
used in cooling fans often fail in two ways: either the lubricant
volatilizes, or it degrades through oxidation. The use ofKrytox™ prevents both of these modes of failure, due to its low
volatility and unsurpassed resistance to oxidation.

™

Alternator
The alternator is usually belt-driven by the engine andsupplies electricity to basic automobile functions (headlights,radio, etc.) while recharging the car battery. As the electricity
is being generated, the alternators and, hence, the bearings
get very hot. Standard lubricants volatilize in the extreme
high temperature environment of the alternator, leading toalternator bearing failure. As the bearings wear and begin
to fail, they can increase the alternator’s resistance torotation. This reduces the alternator’s performance and robs
performance from the rest of the automobile. Perhaps morecritically, if the alternator bearings fail, the alternator will failand the vehicle will stop running.
The higher output alternators used in today’s vehicles generatea tremendous amount of heat, demanding the advanced andreliable, heat-stability and performance of Krytox™ greases.

Heavy Duty Truck Automatic Clutch
In many heavy duty trucks, the engines have a much
lower rpm upper limit. In order to prevent the engine frombeing destroyed, an automatic clutch is used. When theset maximum rpm limit is reached, the automatic clutch
disengages and notifies the driver to shift gears. This bothprevents engine damage and increases ease of operation.
The bearings present in the clutch are critical to its operationand must receive adequate lubrication in order to work
properly. Lubricating with Krytox™ mid-range viscosityand low volatility lubricants reduces the chance that thebearings will fail with the frequent gear-shifting and highloads experienced throughout the extended driving life ofthese trucks.

The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own discretion
and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety
hazards. Because conditions of product use are outside our control, Chemours makes no warranties, express or implied, and assumes no liability in connection with any use of this information. As with anymaterial, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or a recommendation to infringe any patents.
NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING OR OTHERWISEWITHOUT THE PRIOR WRITTEN PERMISSION OF CHEMOURS.

For product information, industry applications, technical assistance, or global distributor contacts, visit krytox.com or within the U.S. and Canada, call 1-844-773-CHEM/2436 oroutside of the U.S., call 1-302-773-1000.
© 2015 The Chemours Company FC, LLC. Krytox™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours Logo aretrademarks of The Chemours Company.
Replaces: K-20547
C-10397 (11/15)