Bearing shape restrictions
Shape is restricted
once the requirements of the rated load of the final value, you must consider the size of bearings to install the required shape, including the installation of bearings considered here and fixed. Match with the requirements of the rated load bearing axis size. These factors help determine the bearing structure and size; can also exclude certain bearing types. In some cases, due to space is constraint even before the rated load to determine the excluded choice.
For example, if the bearing shape is very narrow, the ball bearings are the only type of work. Or, if you must use a very small diameter bearing box, you would need to be installed on the same axis two or more roller bearings in order to achieve the rated load.
When the shaft size with the requirements of the bearing load rating measure very different, there has been a common contradiction. Axis large load light, even if the requirements of the rated load is small, but it may propose an expensive, large bearing rated load, in this case, the best contact with the bearing manufacturer, in order to propose one of the most cost-effective solution.
The basic working condition is assumed that the bearing application on the reducer, the bearings must support a diameter of about 25mm of the shaft end of the shaft, and the installation of a spur gear. Gear force analysis and transmission cycle: radial load bearing about 3/4 time exposure for the 1780N, the speed of 11000r/min, 1/4 of the operation time, bearing the bear trail load of 890 N, speed of 3500r/min. Good positive engagement almost no axial force, there is no oblique engagement or other effective axial component. Anticipated growth in the direction of the maximum axial force is 89Nmaximum vibration force of 89N.
The size limit, due to the limitations of the reducer internal design allows the bearing maximum outer diameter of 70mm, maximum computing interference 6 different axis of the maximum position for 0,0015.



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