2014年9月4日星期四

ship loader bearing crossed roller bearing

crossed roller bearing clearance control bearing production processes in the two process to ensure the bearing clearance, a bearing end grinding, roller bearing sleeve so need beforehand medium size of test equipment, test equipment with rotary marine crane bearing bearing is smooth, the negative clearance has a slight pressing feeling, can ensure the roller and the raceway with clearance at around 0.01mm, preparing for the next assembly; second procedures for fitting test equipment, the bearing does not install the isolation block or holder of test equipment, there are 5 groups of roller for choice, according to the assembly member feel and a dial indicator measuring judgment clearance is required, if don't be by replacing the roller and raceway grinding to finish the match, this method can also be used in the production of the turntable bearing YRT, is commonly used in bearing production method, just cross roller bearings are rotary bearing precision bearing, clearance requires precise control;
2 rotary accuracy and stability control; through production practice experience for many years we know, rotary precision cross roller bearings and YRT turntable bearing mainly, and the raceway quality and deformation, therefore, all bearing before shipment is half finished product assembly, prevent long after placing deformation, and thin-walled cross roller bearings in the grinding time by tempering 2 times treatment, ensure the material stress release caused by deformation of the risk to a minimum; the actual assembly of a rotary impeded, the bearing cleaning, check whether there is damage raceway, then the Spherical roller bearings accuracy of roundness and flatness.
Measuring, Cengcengbaguan to ensure the bearing quality.

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