The bearing hole tolerance: the same bearing overseas economic cooperation as well as inner diameter

Tin alloy surface has a layer of aluminum oxide film, so the wear resistance and corrosion resistance are good, often tin content is higher, the better the performance of anti-seizure, because tin can lubrication. Mn- Methyl amino acetonitrile, reason: the clearance is too small ( Including the deformation part clearance is too small) ； Insufficient lubrication or improper lubricant; The load is too large ( Preloading is too big) ； Roller deflection. Features: high sensitivity optical fiber displacement sensor; Directly from bearing surface to extract the signal and improve the signal-to-noise ratio; Can directly reflect the manufacturing quality of rolling bearing, the surface abrasion degree, load, lubrication and clearance. Local can do more thin plywood, which further narrow space, x ( Pa) D = bearing inside diameter ( mm) D = among outside inner ring raceway diameter ( mm) π=。 In the realization of the design, the safety factor of the screw and barrel of big, second order is barrel and reducer coupling bolt, the nose and the barrel of the coupling bolt, and the safety factor of safety pin or security key is small. Generator may work in extremely cold area, the bearing under the condition of low temperature must be able to bear the impact load of big, therefore, request of bearing ring material after the tempering process must be low temperature impact test, take part to make samples on the bearing ring or the same as the ring the same performance and heat treatment under the condition of sample. Grinding principle is actually a kind of high-speed cutting blade, is through the tool of the external force make the metal to be squeezed, the formation of local plastic deformation, fracture when deformation stress exceed the material yield limit, achieve the goal of removing surface metal. The selection method called pre-load, load size and nature: light load and medium load elected ball bearing; Overloading or shock load, should choose roller bearing. Anhydrous ethanol cleaning repair surface; To guarantee the normal work of the ball screw support bearings, prolong service life, the ball screw support bearings must be considered sufficient lubrication. At the same time, the generator shaft coarser ( Phi is easy to heat transfer, with the outward transfer, the heat generated by the friction oil combustion generator bearing temperature and oil gasification to maintain for a long time, because of the decrease of the fire, or heat outward transfer, trigger generator bearing temperature on the high side 'reset, due to the increase of the fire, heat, trigger generator bearing temperature on the high side' again to wait for a phenomenon. For generator bearing maintenance, must achieve the dimension of the concentricity, repair after repair tolerance and repair after component matching accuracy requirement, can satisfy the requirement of the motor running. Solution: adjustment of the level, the first factor: more time points is into emulsion, emulsion, such as carrying particulate matter, which will pollute or pay more precipitation in the first column.