NTN Deep Groove Ball Bearing for High Thrust Loads
Resource from: NTN Deep Groove Ball Bearing for High Thrust Loads Likes:3116
Nov 16,2011
NTN Corporation (hereafter, NTN) has developed the “Deep Groove Ball Bearing for High Thrust Loads” to increase thrust load*1 capacity three-fold, and which are able to replace tapered roller bearings used in vehicle differentials*2 and transmissions.
There is currently an increased demand for reduced CO2 emissions and fuel consumption in growing markets with the increased uptake of vehicles around the world, with demand for lower torque and higher efficiency axle bearings for automobiles also on the rise. Extremely high levels of torque are transmitted through parts in the automobile drive-train, including the differential and transmission systems. One example is the high levels of force generated on the differential side (wheel side) of differential gears and the associated thrust forces that support axle bearings are subjected to. To meet these high levels of forces, tapered roller bearings are often used in general applications with high thrust loads. Yet the increased rotational torque of tapered roller bearings compared to ball bearings due to the large contact area between the rolling element and bearing ring, and complex pre-compression adjustment required for assembly have been the cause of many issues.
The “Deep Groove Ball Bearing for High Thrust Loads” developed by NTN provides an optimum shape for bearing ring grooves, and the use of a newly designed assembly cage increases the thrust load capacity of standard deep groove ball bearings three-fold. The new bearing can be used for high load applications such as automobile drive-trains.
Using this bearing to replace tapered roller bearings can reduce bearing torque 60%*3 in differential-side applications, and combined with the reduced assembly man-hour, reduce automobile CO2 emissions and fuel consumption, while also increasing customer productivity.
NTN will display the bearing at “The 42nd Tokyo Motor Show 2011”, held at Tokyo Big Sight between December 2 and 11, and plans to sell the bearing on global markets in the future.
*1: Thrust load is a load that acts in the direction of shaft rotation. Radial loads are loads that act perpendicularly to the rotating shaft.
*2: A power transmission device used in machines with wheel such as automobiles. The device absorbs the difference in speed between the inner and outer wheels when the automobile turns a corner while distributing the same amount of torque delivered from the engine.
*3: Comparison made with 2L class differential-side tapered roller bearings at 70% engine torque load and speed of 100 km/h
[Features]
(1) Thrust load capacity : three-fold increase (compared to standard deep groove ball bearings)
(2) Axle bearing rotational torque : 60% reduction (compared to tapered roller bearings)
(3) Reduced assembly man-hour : eliminates need for differential-side pre-compression adjustment during assembly (compared to tapered roller bearings)
[Applicable Parts]
(NTN Deep Groove Ball Bearing for High Thrust Loads)
【CBCC News Statement】
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.
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.
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.
