NSK bearings are the basis of all machines; they are indispensable products in modern society; they are known as"food for machinery industry"It ensures the quality of all industrial products; the purpose of NSK is operation and control; it investigates the operation and friction of machines to ensure the smooth rotation and operation; it is everywhere and provides a rich and colorful life for human beings. And will contribute to the global energy saving movement and resource protection. How to install NSK bearings can last longer. A brief summary: How to install NSK bearings with tapered bores. The tapered bore bearings directly fix the inner ring on the tapered shaft or install it on the cylindrical shaft with an adapter sleeve or a disassembled sleeve. Large-scale spherical roller bearings are mostly hydraulically installed, and an example of using a hydraulic nut to press into the adapter sleeve is installed. The oil hole is set on the adapter sleeve, and the high-pressure oil is sent to the mating surface, and the bolt is pressed into the adapter sleeve device at the same time. Press-in amount of self-aligning bearing. Check the reduction of radial clearance and install it. Use a feeler gauge to measure the clearance, and measure the clearance of the two columns at the same time, and the value should be basically the same. As the size of the bearing increases, when it is installed on the shaft, due to the elliptical deformation of the outer ring due to its own weight, if the clearance is measured at the bottom of the deformed bearing, the measured number will be greater than the actual clearance. With this wrong radial clearance, Approximately standard installation, the interference will be too large, or the actual installation clearance will be too small. Therefore, half of the sum of the two clearances a, b and the lowest clearance c in the horizontal direction should be used as the clearance. When the self-aligning ball bearing is installed on the shaft with an adapter sleeve, it is necessary to ensure that the outer ring can be flexibly adjusted, and the clearance after installation should not be too small. NSK Bearing has developed a new type of electric power steering, which adopts a general design and can be used in various models such as small cars and medium-sized cars sold around the world just by changing the software parameters. This product utilizes the constituent parts of the existing EPS to reduce the cost and shorten the development time. Excessive contact stress on the working surface of the bearing, wear and fatigue spalling on the bearing surface: this damage increases the axial and radial clearance of the bearing, generates noise during work, and destroys the correct position of the mating shaft. According to the bench test, it can be seen that the law of bearing damage is generally to produce permanent deformation after maintaining dynamic load, and then crack from the riveting joint. When the cage is cut off, the steel balls between the bearing channels are stuck and cannot rotate freely, causing the local unit pressure to be too high and being depressed, causing large pieces of metal on the working surface to peel off. Insufficient or lubricating oil enters the water and deteriorates, and the bearing surface is oxidized and corroded.
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