Jiaxing bearing | why replaced bearing cannot be used again?

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. Made new again after annealing of bearing, bearing, why the hardness of the steel is better than the bearing directly? Martensite structure has changed? Even after processing, have not used the bearing again after annealing and other heat treatment also cannot meet the use requirements, this is an irreversible process. A, first with a simply bearing process description: materials forging annealing ( Reduce the hardness, processing quality and efficiency in order to improve the car) Car processing and heat treatment ( 1, quenching: improve the hardness, acicular martensite and bainite. 2, tempering, stress relief, stable organization and size) Grinding assembly packaging, note: after quenching martensite is acicular, internal stress, not temper to eliminate bearing prone to cracking and fatigue in the work. Acicular martensite to tempering to stress, but can't restore its performance after annealing, because of acicular martensite this irreversible or reversible performance would decline after their own properties. So don't want the used bearing again after treatment can meet the requirements of the original! Don't have to dig into the problem, so want to have to do is: let go after you pull the spring, spring will be slightly longer than before, the spring pressure again, you can get it to restore the original size, but you can get it to restore the original elasticity? After all, its elastic has weakened after the first time you stretch. If you are more interested in jiaxing bearing group co. , LTD. The author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you full close jiaxing bearing purchasing consultant company. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source