Subscribe to RSS
Bearings Units
Miniature Bearings
Standard Bearings
Overmolded Bearings
Custom Bearings
England Germany Russia India Turkey SouthAfrica UnitedStates Netherlands Philippines Belgium Australia Brazil Spain China Korean

NSK Develops a High Load Capacity Cylindrical Roller Bearing for Large Gearboxes

Improved Reliability for Large Gearbox Applications Such as Wind Power Generators


NSK Ltd. (NSK; Headquarters: Tokyo, Japan; President and CEO: Norio Otsuka) announced that it has developed a high load capacity cylindrical roller bearing for large gearbox applications that achieves longer life thanks to an increase in load capacity over the conventional product. NSK is targeting global sales of 1 billion yen a year in 2015 by expanding the sale of this product for large gearbox applications such as wind power generators, which require high load capacity.
Development Background

The gearboxes* for large industrial machinery such as wind power generators and mining machinery typically use cylindrical roller bearings in order to sustain the high load conditions of such applications. In recent years, wind power generators have increased in size in order to increase generation output. Also, mining machinery is used 24 hours a day, 365 days a year under severe conditions due to the advancements being made in emerging nations. For these reasons, bearings used in such large gearboxes require even higher levels of reliability.
In response to this need, NSK has developed a cylindrical roller bearing with increased load capacity for higher reliability in large gearbox applications.
* Gearbox: A device that converts input revolutions to the desired level of output revolutions through the meshing of multiple gears between the input and output shafts.


Product features

1. Longer life by increasing the number of rollers
By increasing the number of rollers, NSK has reduced value of surface pressure exerted on the contact area between the rollers and rings, thereby increasing the load capacity and lengthening the life of the bearing.
2. Optimization of the cage shape for reduced stress
Increasing the number of rollers results in thinner cage walls, which in turn, weakens the cage. NSK countered this side effect by optimizing the cage shape to suppress stress concentration in the cage bar members, thereby achieving a sufficiently strong cage.


Product benefits

This product achieves an approximate 30% increase in life over that of the current product, improving the reliability of gearboxes even in harsh environments.


source: NSK

0 commentsback to post

Add your comment



Other articlesgo to homepage

NSK Develops a Long-Life Sealed Spherical Roller Bearing with Improved Abrasion Toughness for Heavy Industry Applications

NSK Develops a Long-Life Sealed Spherical Roller Bearing with Improved Abrasion Toughness for Heavy Industry Applications(0)

Longer Life for Lower Maintenance Costs NSK Ltd. (NSK; Headquarters: Tokyo, Japan; President and CEO: Norio Otsuka) announced that it has developed a long-life sealed spherical roller bearing with improved abrasion toughness for application in heavy industries such as mining, iron and steel manufacturing and non-ferrous metals manufacturing. The improved life of this product provides

Trelleborg launched e-learning modules on sealing technology

Trelleborg launched e-learning modules on sealing technology(0)

Trelleborg Sealing Solutions is launch e-learning modules on sealing technology. Covering major sealing product areas, our aim through the e-learning modules is to answer questions most commonly asked by design engineers when facing sealing challenges. The know-how in the upcoming learning modules is not only targeted at design engineers at equipment manufacturers, but will also

SKF ProFlex automated lubrication system improves container crane efficiency

SKF ProFlex automated lubrication system improves container crane efficiency(0)

SKF has installed the SKF Proflex automated lubrication systems in the MSC Home Terminal cranes in Europe’s second largest port, Belgium’s Port of Antwerp, enabling the customer to reduce manual maintenance with about 1,900 hours annually. On average, the customer spent about 90 hours to perform lubrication routines manually and this is carried out when

Single Turn Wave Springs

Single Turn Wave Springs(0)

Conventional Gap and Overlap Type Wave Springs are used in a wide variety of applications. For short deflections and low-medium forces, they function with precision and dependability. Bearing Preload Springs These two types of Smalley Wave Springs permit radial expansion or growth in diameter within a cavity, without the binding or hang-up normally associated with

INSOCOAT bearings

INSOCOAT bearings(0)

Insocoat bearings Electric motors, generators and associated equipment are at risk when an electric current passes through a bearing. This can damage the contact surfaces of rolling elements and raceways in the bearing (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents due to

read more

Contacts and information

Social networks

Most popular categories

Legal Notice

© 2012 BEARING NEWS All rights reserved.