New energy vehicle bearing solutions?

2024-07-01

The Chinese automotive industry is shifting towards new energy and electrification, and in the high-end automotive market, there is an increasing demand for precision component units.


As an important load-bearing and rotating component, automotive bearings need to be able to withstand both axial and radial loads simultaneously.


In the automotive industry, in addition to universal hub bearings and lubrication products, technological breakthroughs have also been made in advanced wheel end, engine, transmission system, suspension, and electric vehicle solutions.


Hybrid ceramic bearings


With current insulation characteristics, SKL hybrid bearings have a density 40% lower than steel bearings. Being able to work at lower temperatures requires less lubrication and extends its service life.


Tapered roller bearing


The tapered roller design of bearings has a small volume and low energy loss, which can effectively improve efficiency and reduce size. SKL tapered roller bearings can withstand relatively large loads and use special cages to retain and distribute lubricating oil into fine grooves through capillary action. Lubricating oil is stored in a cage near the end of the roller, and when lubrication is insufficient, lubricating oil seeps out of the fine groove to the area that needs lubrication the most.


Silent needle roller bearings


Compared with traditional bearings of the same type, SKL bearings use high-precision machining methods to form an arc at the end of the needle roller. The bearing can reduce noise by one-third while bearing heavy loads, making it very suitable for installing electrical components in extremely quiet vehicles,


Bearings are widely used in new energy vehicles due to their advantages such as good rigidity, smaller mass, and lower power loss, helping to improve the efficiency of the entire transmission system. SKL provides manufacturers with systematic solutions through advanced technology in various aspects;


case harden


For the use of products under harsh working conditions, good heat treatment of materials is the guarantee of better product life and performance; The use of high-purity steel in SKL can also ensure better fatigue life of bearings, resulting in smaller dimensions and higher efficiency.


Engineering surface optimization


Surface structure optimization can reduce torque and improve lubrication efficiency. Low viscosity lubricating oils are mainly used in electric vehicles, and a good surface structure brings better usability.


Optimize size


By improving the dimensions of tapered roller bearings, optimization will be carried out based on actual operating conditions in terms of rollers, raceway cone angles, and external dimensions, ensuring the rated load and stiffness of the product while improving operational efficiency. The optimization of internal micro dimensions such as raceway contours can reduce operational power loss and bring better stress distribution.


power density


With advanced technology and industry application experience, we continuously improve product design to increase power density, allowing bearing products to continuously reduce size while meeting load requirements, improve torque performance, reduce system weight, and achieve efficiency improvement.