Ball bearing hinge friction coefficient test, the test pot bearing friction coefficient should be on a dedicated double shear friction test apparatus, the pot bearings placed in double shear combination plate bearing test machine during the test, Practice Center is aligned with the center position of the carrier plate. During the test, first pre-press, the load bearing vertical design with a continuous, uniform rate to fill, with the regulator 3min after unloading, repeated three times preloading, after preloading acute becomes loaded, first vertical carriage leave elastic hinge design load bearing, and horizontal loading device continuous and uniform horizontal forces leave, while the initial friction coefficient calculated bearing ball joints during the test three times in a row, the average value of the coefficient of sliding friction measured three times as branch Matcha seat measured coefficients. Bearing friction absorption should meet. Std bearing activities is not greater than 0.03 fixed hinge bearing, cold-type bearing activities require no more than 0.06, the rotation of the ball bearing hinge-type test, should be a professional test stand, the test, the test basin branch according to the requirements placed on the seat bearing plate tester, testing center aligned with the center position of the carrier plate. During the test, the first choice should be a ball joint bearing preload, the load bearing vertical design with continuous uniform rate applied uniformly test load bearing vertical design load is generally 1.5 times the load after the regulator jacking beams, so that bearing design produces 0.02rad corner or corner, after holding charge 1h unloaded, bearing in testing and dismantling after the test, visual inspection, observation of steel, PTFE plate, brass sealant no damage rubber board cited no cracks or other phenomena. Therefore, the ball must be maintained regularly to clean the hinge support ministries, to be painted scroll bearing lubricants, ball bearing hinge combination even tighten the bolts, there are serious shortcomings in the timely replacement of the rocker shaft bearings should even skew or tilt correction position avoid rolling surface is blocked and so on. Ball bearing hinge routine maintenance, motor parts of the bridge abutment is under live load, temperature changes or other factors, to produce rotation, horizontal displacement, is the focus of the conservation of the site, taking into account the previous design of roads and bridges, it is is not set to a large extent on the conservation of the working channel bearing ball bearing hinge bearing maintenance personnel inaccessible parts of the long-term dystrophy, affecting the normal production of bridge maintenance work is not timely. So stressed Jiaqing for bearing maintenance, channel maintenance work to solve the problem of the working platform is necessary, therefore, the ball bearing hinge hinge support prices in provisions for routine maintenance of the proposed bridge bearing several requirements . Supports various components should be kept intact, clean, sweeping at least once every six months, oil and ball bearing hinge around, garbage, prevent water, snow, ensure the normal operation of the bearing. Hinge bearing price, Jilin hinge support, good quality hinge support Which? Hengshui Hao Hao Tong flak provided by Hengshui Rubber Company. Hengshui Hao-Engineering Rubber Co. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you hand in hand into the brilliant, for a better future!