Jiaxing bearing group co. , LTD. : Z1, Z2, V1, V2, you know?

There is rotational, have HRB bearing ( ) Jiaxing bearing group co. , LTD. : Z1, Z2, V1, V2, you know? Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, existing stocks of 50 million yuan, covers the whole bearing, have very strong cash supply ability. Bearing is a kind of important modern machinery and equipment parts. Its main function is to support the mechanical body of revolution, to reduce the equipment in the mechanical load coefficient of friction in the process of transmission. By the frictional properties of motion elements, bearing can be divided into two categories, the rolling bearing and sliding bearing. So how do we to quality testing of bearing? The national standard of testing do you know? A national standard, vibration acceleration ( Commonly known as Z standard) The standards early, in order to measure the vibration of the bearing rotates acceleration value, to determine the quality level of bearing, divided into Z1, Z2, Z3 from low to high quality grade three. At present domestic bearing manufacturers still use to vibration acceleration value to measure the pros and cons of bearing, simply reflects the fatigue life of bearing. Second, the vibration velocity standard ( Commonly known as V standard) Because the original vibration acceleration standard has not been abolished, the standard has emerged as ministerial standard of mechanical industry, is a reference European standard combined with the actual situation in our country and the need to develop, to detect bearing vibration velocity to differentiate bearing the quality levels of ( Equivalent to the national standard) 。 : V, V1, V2, V3 and V4 five levels of quality. All kinds of ball bearing quality level from low to high V, V1, V2, V3 and V4; Roller bearing ( Cylinder and cone) From low to high quality grade V, V1, V2, V3 four quality grades. It was based on the different frequency (bearing Low frequency, intermediate frequency and high frequency) The speed of the vibration of the b to reflect the quality of the bearing. The analysis of the bearing can be roughly whether geometry problems ( Such as rims ellipse) , race/the quality problem of the rolling element and cage's quality problem, than to investigate bearing vibration acceleration has improved significantly in quality. Export to Europe to the current domestic bearing, the military and aerospace industry in China are conducted in accordance with the standard bearing quality inspection, testing at the same time the European import bearing quality and distinguish fake imported bearing provides a feasible method. Bearing quality testing situation of two standard parallel and 'Z mark' quality is high level of bearing, with 'V standard detection may not have a good quality performance, there is no corresponding relationship between both. In the bearing is to pay special attention to the quality inspection. 24-hour customer service hotline: if you are more interested in jiaxing bearing group company introduces industry information or have any questions, please click on contact us page on the right side of the online customer service, or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - - - - - - Editor: HRB bearing company sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source