NSK Develops Super Long-life Needle Roller for Automobile Transmissions

NSK Ltd. announced that it has developed super long-life needle roller for automobile transmissions.

This new needle roller improves the durability of needle roller bearings in sever conditions with insufficient lubrication. It also prevents damage with the mating parts the rollers contact to further improve the reliability of automobiles. NSK is targeting 2.5 billion yen in global annual sales for this product in 2020.

Development Background

As fuel efficiency regulations have become stricter in recent years, demand for higher fuel efficiency in automobiles has increased around the world. For transmissions, this has meant using lower viscosity lubrication and lesser amounts of lubrication to improve fuel efficiency. Unfortunately, this has made conditions sever for needle bearings due to insufficient lubrication, which in turn has resulted in the need to prevent early damage of needle roller bearings and wear in the mating parts contacted by the rollers.

In response to this, NSK developed super long-life needle roller suited to the sever conditions of insufficient lubrication. These new rollers prevent damage of needle roller bearings and wear on mating parts.

Product Features

1. Improved durability

Increased in hardness of the roller surface film for greater than twice the durability compared to the current rollers.

2. Prevention of damage to mating parts

Concave micro-indentions were added to allow lubrication to pool on the surface of the rollers in order to sustain a lubrication film between the roller and mating parts, thereby preventing wear and other surface damage.

Product Benefits

This new roller contributes to higher automobile transmissions efficiency and improved automobile fuel efficiency.

About BHR Bearing ( Shenzhen Qinggong Bearing Co, Ltd.)

Shenzhen Qinggong Bearing Co., Ltd. （www.bhrbearing.cn）is a well-know bearing manufacturer in China since the year 1996 with its own factory. Despite our own BHR bearings, we also distribute kinds of famous branded bearings from worldwide manufacturers SKF bearings, FAG bearings, NSK bearings, KOYO bearings, NTN bearings, NACHI bearings, ASAHI bearings, TOYOTA auto bearings......and OEM can also be supplied.

We BHR bearing is focused and committed to deliver our customers high quality products and solutions because they are at the core of everything we do. By combining technology with our design engineering expertise we are able to offer a breadth of advanced bearings and solutions. With variety of bearings, competitive prices, fast delivery and good after-sale service, hope we will get a chance to talk bearings together.