Remain free vibration frame and its rings and the rolling elements collide or will be issued this noise NTN Bearing rotation. It can occur in all kinds of NTN bearings, but its sound pressure level is not too high and low frequencies. Its characteristics are:. A stamping cage and plastic cage can produce. b. Whether thin oil or grease lubrication will appear. c. When the outer bending moments most likely to occur. d. prone to large radial clearance. Single row angular contact ball bearings can withstand axial load in one direction, the radial load spherical roller bearing prices, will cause additional axial force aligning roller bearings picture, must be applied to the corresponding reverse load, Therefore roller bearings, the kinds of bearings are generally used in pairs. Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment load, it can limit the bi-axial displacement of shaft or housing, the contact angle of 30 ° Spherical Roller _ Long-bearing sales agent (certification) _ roller bearings provided by the Dongguan City, Long-Bearing Machinery Co., Ltd. Dongguan City, Long-Bearing Machinery Co., Ltd. (long-yu.net) Dongguan, Guangdong, thrust roller bearings leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the Long-leadership with the staff warmly welcome all inquiries negotiations to create a better future Long Yu.