Both Longer Service Life and Lower Fuel Consumption
The components of the engine, which is the heart of the car, are especially required to have a high level of reliability and endurance. JTEKT's products have a long service life even under severe conditions such as high-speed rotation, high temperature, or vibration, and their small size and light weight means a lower fuel consumption.
There are many auxiliary machines around the engine, such as the alternator and the water pump.
This page will introduce the major products that are used in these machines.
1Tensioner and Idler Bearings
These are used in the timing belt and auxiliary drive belt to adjust the belt tension or change the belt running path. JTEKT's bearings have a long service life even under high-speed rotation and high-temperature conditions, and their high-strength resin pulleys help to reduce the weight.
2Bearings for alternators
An alternator is a device that generates alternating current, rectifies it with a diode, and outputs it. JTEKT's bearings have a long service life even under high-speed rotation and high-temperature conditions, and their low-friction torque and light weight help to lower fuel consumption, while also contributing to the miniaturization of alternators with their improved materials.
3Clutch pulley for
This has a built-in one-way clutch and absorb fluctuations in belt tension in the drive pulley of the alternator, preventing the clattering and squeaking of the auxiliary belt and contributing to the extension of the belt service life.
4Water pump bearings
Water pump bearings are used in the water pump that circulates cooling water for the car's engine. JTEKT's bearings provide a longer service life thanks to their higher sealing performance and grease with excellent heat resistance and water resistance.
Turbochargers use exhaust to increase air-fuel mixture intake and improve engine performance. JTEKT's bearings provide a longer service life due to their highly heat-resistant materials for bearing rings and cages, and their ceramic balls that are resistant to high-speed rotation, high temperatures, and foreign matter.
6Thrust bearings for
In car air conditioners, the refrigerant is compressed by a compressor to liquefy it, and when it returns to a gas it cools the air by vaporization heat. The bearings in the compressing section of the compressor are used in the refrigerant under severe lubrication conditions. JTEKT's bearings provide a lower friction torque and longer service life thanks to their improved internal design.
7Oil seals for engines
At JTEKT, by designing the optimal seal for each engine based on logical analysis, and selecting/formulating the optimal materials, we are improving sealing performance and achieving low-friction torque.