Development of High Performance Wheel Bearing for Satellite Attitude Control by NSK
The attitude wheel on a satellite is responsible for accelerating and decelerating an internal rotating mass in form of a flywheel. The generated reaction torque is used to provide attitude control for the satellite. Bearings are considered as one of the main components influencing the performance of the reaction wheel. The bearings in an attitude wheel must satisfy strict requirements to ensure its reliable spin in a long life span of 10 to 15 years during its orbit in the space, while using a small amount of lubricant on the bearing surfaces in a vacuum environment. Furthermore, the bearings must minimize any vibration in order not to adversely affect the observational performance of the satellite. At the same time, the bearings must also withstand the vibration and impact from launch and have a capability of enduring temperature fluctuation while the satellite is in orbit. In response to such strict condition and rugged environment, NSK has developed a high performance wheel bearing for satellite attitude control, the first such product to be developed using homegrown Japanese technology. Read more
Development of Ultra-Low Friction Roller Clutch for Fishing Bait Reels by NSK
Here is a bit of news for you fishing enthusiasts. If you have done some fishing whether it was leisurely or professionally, you may very well know that fine control over the lure is an art with a bit of help from the reel ,requiring a reel that delivers a light touch combined with a direct feel plus a minimal play when reeling. To make your fishing experience more enjoyable and rewarding, NSK has developed an ultra-low friction roller clutch for fishing bait reels capable of reducing overrunning friction by 90% comparing to conventional roller clutches in order to enhance reel operation and reel feel. Read more
Development of Shielded Deep Groove Ball Bearings with High Load Capacity by NSK
In order to increase the service life of bearings used under the heavy loads, there is a need to increase bearing load rating. One solution is to increase the size of the bearings but this may not be a practical option given the limited space inside machinery plus avoiding the increased friction loss which will be caused by larger bearings to save energy. Based on this shortcoming NSK has developed a new general purpose, shielded deep groove ball bearings with high load capacity designed to improve maintainability through longer service life while contributing to energy savings through lower torque. The newly developed bearing achieves a 26% greater dynamic load rating in comparison to conventional ISO standard bearings of the same size. The new bearing comes with increased number of balls while using ultra large diameter balls. Read more
Development of World’s Lowest Friction Ball Bearings by NSK
NSK made an announcement on development of ultra low friction sealed clean ball bearings featuring half the friction of the conventional sealed ball bearings. The new ball bearings will be targeted for application in manual transmission (MT) vehicles. The NSK’s sealed bearings are used inside transmission in preventing the ingress of gear dust as well as other contaminants resulting in a longer service life and greater reliability. In the new product, straining force was reduced by 50% through narrowing the seal lip by 10% and length by 70% in comparison to conventional bearings based on computer simulations of the lip shape. Read more
Development of Two Sensor Technologies targeted for use in Robots by NSK
NSK made an announcement on development of two kinds of sensor technologies targeted for use in human assisting robots. The two sensor technologies are proximity sensor and a real time conical scan sensor. The proximity sensor was developed for obstacle avoidance in human assisting robots, the sensor is capable of detecting the distance and centered position of a target to the front all in real time by utilizing various linearly arranged sensing elements.The elements simply detect obstacle by reflected light of emitting LED light.
The sensor is capable of obtaining information from various sensing elements with minimum amount of wiring. The sensor’s response time is under 1msec. Read more
Development of Guidance Robot for Mobility Challenged Users by NSK
As many countries around the globe now facing the implication of a rapidly aging society, the challenge for these countries still remains in providing to its aging citizens a better quality of life and not only a longer life. Addressing such needs has been instrumental in fueling the successful development of robotic technology and its market expansion.One such company that has been involved in robotic filed is NSK which has been known for its expertise and focus on the supply of components in this field such as bearings, linear guides and ball screws. However, NSK taking a further step in this field by introduction of a new human assistance robot which is able to assist individuals with mobility challenges, guiding them along the way while avoiding obstacles. Read more
Development of High-Speed Ball Bearing for Next Generation hybrid Vehicles by NSK
Currently there is a growing demand for ultra high speed rotation technology by automobile manufacturers for securing the output power while they continue scaling down the size and weight of drive motors and power generators in order to improve fuel consumption in the next generation hybrid systems. Based on this need, NSK has developed a new ball bearings with a single-axis actuator for ultra-high load applications such as motors and power generators in next-generation hybrid vehicles. Read more
Development of Spherical Roller Bearing for Papermaking Machinery by NSK
NSK a leading Japanese manufacturing company with expertise in precision machining technology has made an announcement on development of paper making machinery bearing that prevents micro-seizing (smearing). The new bearings improved smearing resistance has been achieved by coating the bearings’ rolling element with company’s proprietary diamond like carbon which is a film mainly made of carbon. This development will result in a more stable operation of paper making machinery as well as extending the maintenance intervals. Read more
