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The commonly used materials of oil seal are: nitrile rubber, fluorine rubber, silicone rubber, acrylic rubber, polytetrafluoroethylene and so on. 1, nitrile rubber has good heat resistance, wear resistance, resistance to all kinds of lubric...
Adjustment of axial clearance For the installation of tapered roller bearings, the axial clearance can be adjusted by the adjusting nut on the journal, the thread in the hole of the adjusting gasket and the bearing seat, or by a preloaded s...
Generally speaking, the bearing seat can be divided into outer spherical bearing seat, integral bearing seat, split type bearing seat, split vertical bearing seat, rolling bearing seat, sliding bearing seat, bearing seat with flange, etc. F...
1. When the one-way bearing is removed for inspection, the appearance record should be made by taking pictures and other methods. 2. In addition, it is necessary to confess the amount of remaining lubricant and sample the lubricant before c...
1. Appearance quality The surface of the sample should be free of bubbles, burrs, deformation, uniform material and pungent odor. 2, size (1) Relevant dimensions tested with vernier calipers shall conform to relevant technical and drawing r...
The shaft sleeve parts are made of 45 steel. Blank selection: According to the parts material is 45 steel, the production type is medium batch production, the parts diameter and size difference is large, the parts wall is thin, the stiffnes...
1. The fixed When the gear shaft is moving, try not to let it deviate from the direction because of vibration. At this time, it is necessary to use the copper shaft sleeve to help fix it. The most important role of the copper bushing in mac...
1. Precision plastic bearing Precision plastic bearing, compared with the traditional plastic bearing precision and tolerance improved. Generally, inner and outer rings, rolling bodies and cages are made of materials suitable for precision...
The precision grade standard of bearings is 0 grade, 6X grade, 6 grade, 5 grade, 4 grade and 2 grade. Bearing accuracy increases successively from level 0. For general purposes, level 0 is enough to meet the demand, but when used in some co...
Scope of application: the stamping outer ring needle roller bearing with cage is suitable for high speed and heavy load, and is mainly used in the transmission of machine tools, automobiles, motorcycles or textile machinery. Rammed ring nee...