Drivetrain Group: Clutch Systems
Friction
Products
drivetrain.borgwarner.com
For additional BorgWarner
Clutch Systems
information, contact:
[email protected]
Product Sheet
Friction Material & Plates
Features & Advantages
Friction Material Highlights
tested per SAE J2490 in transmission oil unit loading up to 10 Mpa
1000 Series
1473/1777
1798
3000 Series
3500
3700
4000 Series
4300
4390
4400
4500
5000 Series
5301
5900
6000 Series
6100
6500
7- 8000 Series
7400
8100
Moderate Thermal Stress Materials
Benchmark for smooth shifting performance. First choice for moderate thermal stress.
Standard duty braking material with good NVH characteristics.
High Static Coefficient Materials
Very high static torque material.
Industry’s highest static torque material.
High Thermal Stress Materials
Standard for high-energy shift quality and compatibility with any ATF.
Maintains consistent frictional behavior and is easily calibrated under varied conditions.
Same energy capacity as 4300 with a much higher static holding capacity.
Extreme thermal stress applications.
The benchmark for high temperature applications within the industry.
Industry standard high thermal stress friction material typically used in brakes,
transmissions and PTO’s.
Continuous Slipping Materials
Superior power density in continuous slip operations including torque converter and wet start
clutch applications. Resists high-mileage shudder and complements high lube flow clutch designs.
Extreme thermal stress applications with low oil flows.
Provides excellent durabilty and hot spot resistance.
Superior Noise, Vibration, and Harshness (NVH) Characteristics
Combines high thermal capacity, shudder resistance, and exceptional power density
required for durability in a launch clutch.
Dampens squawk and shudder-inducing vibrations.
Combines high friction coefficient, thermal capacity and noise resistance for durability
for the most demanding noise-sensitive slipping and shifting clutch applications.
Extreme Thermal Stress - Sintered Material Alternative
Extreme thermal stress using aerospace composite material technology. Can endure abuse
conditions longer than sintered metal materials while maintaining friction characteristics.
High temperature carbon coated material with stable friction characteristics and
consistent performance in a wide range of fluids. Especially good for strong torque rise
at low temperature conditions.
Static/
Breakaway
Coefficient
Midpoint
Dynamic
Coefficient
Ratio of
Dynamic
Coefficient
0.14
0.16
0.15 - 0.18
0.14 - 0.16
1
1.1
0.18
0.2
0.15 - 0.16
0.16 - 0.17
1.2
1.3
0.15
0.14 - 0.17
1
0.19
0.17 - 0.18
1.2
0.14
0.14 - 0.17
1
0.15
0.14 - 0.17
1
0.13
0.15 - 0.19
1
0.14
0.13 - 0.16
1
0.14
0.14 - 0.17
1
0.15
0.15 - 0.19
0.9
0.14
0.14 - 0.17
1
0.16
0.13 - 0.16
1.1
© 2011 BorgWarner
FMP-PS-11