New products bearing the international standard of vibration velocity ( Commonly known as V standard)

New products bearing the international standard of vibration velocity ( Commonly known as V standard) Source: bearing | last updated: - 2020 06 - 24 new products bearing the international standard of vibration velocity ( Commonly known as V standard) Bearing the international standard of vibration velocity ( Commonly known as V standard) : 1. Because has not cancelled the original standard of vibration acceleration, therefore the standard as published by the ministry of machinery industry standard. It is according to the European standard and combined with the actual situation of China and development, the need to detect bearing vibration velocity. Bearing the quality levels of (divided into Equivalent to the national standard) 。 It is divided into five level of quality: V, V1, V2, V3 and V4. All kinds of ball bearing quality level from low to high respectively V, V1, V2, V3 and V4; Rolling bearing ( Cylinder, cone) The quality level from low to high respectively is V, V1, V2, V3. 2. By testing the bearing at different frequencies ( The low frequency, intermediate frequency and high frequency) B at the rate of speed to reflect the quality of the bearing. Whether can be roughly analysis bearing geometry problems ( For example, the steel ring oval) , race/the quality problem of the rolling element and cage's quality problem, it is obviously improved than vibration acceleration. The quality of the bearing. At present, the domestic bearing export to Europe, the Chinese military and aerospace are conducted in accordance with the standard bearing quality detection. At the same time, test the quality of the bearing in Europe and to identify counterfeit bearings provides a feasible method. 3. Bearing quality inspection, there are two parallel standard, and according to the standard of 'V' check, has the standard of 'Z' high quality level of bearing may not have the good quality performance. There is no corresponding relationship between them. Bearing what is the meaning of the axial and radial bearing of the shaft is its central axis, the diameter is the diameter of it. Then axis is the direction of the central axis, the radial direction is diameter. Axial is usually an object of type cylinder for, is the direction of the cylinder center of rotation axis, with central axis in the same direction. Axial and radial direction is perpendicular to the direction of end face of the radius of the circle or cylinder diameter, radial and axial vertical space.