Four-Point Contact Bearings  Manufacturers, Traders, Suppliers

The four point contact bearing is a rolling bearing, namely a special type of angular contact ball bearing.They can support axial and radial forces. The rolling element touches the raceways at four points. The inner and outer rings, which can be installed separately, allow more balls to be used with smaller dimensions, thus increasing the absorption capacity of the radial and axial forces in both directions. The four point contact bearing has a contact angle of 35 degrees, while the angular contact ball bearing has a contact angle of 40 degrees. Application areas for four point contact bearingsThey are mainly used where bearings have to work with low friction at low speeds and high loads.Application examplesIn a wind turbine the four point contact bearings serve as blade bearings. They are components of linear systems used, for example, in the packaging industry, food industry or medical technology. Further applications can be found in mechanical engineering and the automotive industry. For example in the reduction gear.An example for the use of four-point bearingsThe rotor blades of a wind turbine are adjusted so that the wind conditions can be used optimally and the loads do not become too extreme. Single- or double-row four-point bearings are used as slewing rings for adjusting the rotor blades and tracking the nacelle. They transmit radial and axial forces and thus minimize the loads on the rotor blades. They make it possible to precisely adjust the angles under different loads.