NSK Develops Extremely High Speed Needle Bearing for Planetary Mechanisms for Automobile Automatic Transmissions
Development Background
In recent years, automobile fuel economy regulations have become more stringent, resulting in multi-stepping of ATs and smaller, faster motors for HEVs. These advancements have created a need for higher speed revolution pinion gears for planetary mechanisms. In response to this need, NSK developed an extremely high speed needle bearing for planetary applications by applying a special coating to the bearing cage.
Product Features
Applying a special coating to the bearing cage reduces the heat generated by friction between the sliding area of the cage and pinion gear, and also improves cage abrasion resistance. As a result, the newly developed product can handle pinion gear speeds of approximately double that of the standard cage design, and about 1.5 times that of the current high-speed cage design.
Product Benefits
(1) Higher efficiency through improved transmission design capability.
Produces higher efficiency for the transmission by allowing higher rotation speeds for the pinion gear and carrier.
(2) Compactness
The improved abrasion resistance (anti-seizure) of the newly developed cage with the pinion gear during high speed rotation enables a width reduction of approximately 7% compared to the conventional (high-speed) product. This contributes to a reduction in transmission size.
1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.
Next Emerson Bearing Biomedical Division Stands Boston Strong with prosthetics niche
BRIEF INTRODUCTION
Cnbearing is the No.1 bearing inquiry system and information service in China, dedicated to helping all bearing users and sellers throughout the world.
Cnbearing is supported by China National Bearing Industry Association, whose operation online is charged by China Bearing Unisun Tech. Co., Ltd.
China Bearing Unisun Tech. Co., Ltd owns all the rights. Since 2000, over 3,000 companies have been registered and enjoyed the company' s complete skillful service, which ranking many aspects in bearing industry at home and abroad with the most authority practical devices in China.
