Fuel Efficient Bearings 

At first glance, you may not be able to tell the difference between this tapered roller bearing and any other. Upon closer inspection, you’ll find Timken® fuel efficient bearings are lighter and thinner than their standard counterparts. From improved fuel economy to increased reliability, fuel efficient bearings offer exactly what you want to build a better axle system.

Design Attributes

• Advanced tapered design results in a 30 percent reduction in power consumption and up to a two percent gain in vehicle fuel economy.
• Power dense design reduces bearing weight by 10-15 percent.
• Controlled set-up torque helps you achieve more accurate settings, resulting in the highest axle performance possible.

Applications

• Light duty automotive axles

Improved Fuel Economy
Testing shows that our fuel efficient design significantly increases fuel economy over typical bearing designs. The Pinion Bearing Power Consumption (Fig. 1) below illustrates that the power consumption of a fuel efficient pinion bearing is significantly lower than that of a typical pinion bearing.

Reduced Operating Temperatures
The Axle Temperature Rise bar chart (Fig. 2) shows that an axle running with fuel efficient bearings can have an operating temperature of as much as 30 degrees Celsius less than an axle running with typical bearings. Reduced temperatures can increase bearing oil and gear life.

Less Noise
The loss of pinion position, which causes transmission error, is the main reason for noise generation. The fuel efficient design reduces vibration and provides more stable gear position, resulting in a reduction of noise. The Pinion Movement Due to Wear chart (Fig. 3) shows that a fuel efficient bearing reduces wear by up to 30 percent when compared to a typical bearing.

Reduced Weight
The fuel efficient design features a 10-15 percent weight reduction. The image below shows a comparison of the fuel efficient design size compared to typical designs.