Tapered Roller Bearings
It is a widely used mechanical support. Its function is to support the shaft and the parts on the shaft under the condition of ensuring the bearing has sufficient life, and make relative rotation, swing and other motions with the machine base, so as to reduce the friction between the rotating pairs as much as possible to obtain a higher transmission. efficiency.
The working principle and application of tapered roller bearings
Tapered roller bearings are mainly subjected to combined radial and axial loads based on the radial direction. The bearing capacity depends on the raceway angle of the outer ring, the larger the angle, the greater the bearing capacity. The tapered roller bearing has a tapered inner ring and an outer ring raceway, and the tapered rollers are arranged between the two. All the projection lines of the cone surface converge at the same point on the bearing axis. This design makes tapered roller bearings particularly suitable for bearing compound (radial and axial) loads. The axial load capacity of the bearing is mostly determined by the contact angle α; the larger the angle α, the higher the axial load capacity. The size of the angle is expressed by the calculation coefficient e; the greater the value of e, the greater the contact angle, and the greater the applicability of the bearing to bear the axial load.
Tapered roller bearings are usually separated, that is, the tapered inner ring assembly composed of the inner ring with roller and cage assembly can be installed separately from the tapered outer ring (outer ring).
Tapered roller bearings are widely used in industries such as automobiles, rolling mills, mining, metallurgy, and plastic machinery.
The development trend of tapered roller bearings in my country
Since the founding of New China, my country's tapered roller bearing industry has achieved rapid development. However, at present, in terms of product development, product quality and production and manufacturing levels, there is a big gap with foreign high-end tapered roller bearing manufacturers. Most of them are at the level of imitation. Generally, low-grade tapered roller bearings account for a large most. Therefore, in recent years, my country has been increasing its efforts in scientific research and has made certain progress in the level of products.
At present, the development trend of my country's tapered roller bearing industry is as follows: increase production scale and increase production investment; increase scientific research and strengthen innovation, especially focusing on bearing life and reliability; continue to adjust a wide range of product portfolios to deepen tapered Roller bearing structure design and application technology research, expand special high-precision and high-value-added tapered roller bearings; focus on the development of speed, precision, high reliability, long life, low friction, low vibration, low noise, high-tech bearings product.