Bearing installation and maintenance, The first phase)

Bearing installation and maintenance, The first phase) 2018 - 07 - 25 / emperor wen da bei bearing reasonable installation and maintenance of normal safe operation of the premise is to ensure that the bearing, after emperor of shell company professional after-sales service team for many years practical experience, more than 80% of the after-sales problems because of incorrect installation, disassembly, or lack of maintenance. For this, we specially made a relevant training materials, hope to help more customer master correct installation and maintenance of the bearing, the method of reducing bearing damage or equipment failure, improve equipment efficiency and enterprise benefit. Released because the content is more, we will be divided into five periods: 1, the taper hole bearing installation and disassembly, On) 2, taper hole bearing installation and dismantling, Below) 3, cylindrical hole bearing installation and removal of 4, improper installation, bearing damage in advance 5, bearings after installation, maintenance of 1, tapered bore the bearing installation and disassembly ( On) Set set & diams; Set set installed on the optical axis using set set, bearing can be fixed in any position on the shaft, used for ladder shaft, ladder ring, bearing can be more accurate on the shaft with a given position, the following figure on the left. For small bearing ( Inside diameter below 80) Remove the relatively simple. The removal of tight sleeve & diams; Remove the small belt tight sleeve bearing, are shown in the figure to the right below, the nuts are rolled back a few times, use block with a hammer beating the disassembly. For step shaft is more simple, directly to the nut rotate back and forth a few times, use the block with a hammer beating the disassembly. Withdrawal of & diams; Backing down sleeve is mainly used for the installation of the sleeve will cone hole fixed on the ladder shaft bearing cylindrical shaft neck, shown in the figure on the left below. Withdrawal of crushed into on shoulder or similar device between the cone bearing and shaft, then with a nut or end plate should be fixed on the shaft. Due to the shaft end thread can have different size according to the practical application, so the lock nut or end plate should be ordered separately. When used for ladder shaft, by adjusting the ladder ring width size X, bearing can be more accurate position on the shaft with a given length L. ♦ Withdrawal of remove below middle is shown in the drawing operation, remove the sleeve on tighten nut. As shown in figure on the right side of homework is difficult cases, bolt hole is set in nut on the circumference of a circle, drawing the sleeve to screw down the bolt. Set set and refund the difference between the sleeve & diams; For easy installation using the set set, in order to remove the use are convenient withdrawal. ♦ Set a tight round nut tight bearings, sleeve instead. ♦ Concrete realization method is a local thread is different: set set - - - - - - - - - - - - - In thin place, sleeve - back - - - - - - - In the thick place. ♦ The sleeve need to increase the shaft machining process ( Shaft end thread) 。 ♦ Tight sleeve and withdrawal sleeve material is 42 crmo, tempering hardness: HB220 - 250. ♦ Tight sleeve and withdrawal sleeve 1:30 taper 1:12 and two ( The same as the bearing) 。 ♦ Set set and withdrawal of the bearing can be accurately fixed in a given position on the shaft. ♦ Relative to the optical axis, by adjusting the length of the ladder ring can make steps axis positioning more accurate. ♦ For small bearing set installation is disassembled are relatively simple. Large bearing set, remove for large bearing sleeve, can on the tight sleeve and withdrawal sleeve increase oil and oil tank, after the injection of oil and oil tank of the hydraulic oil, bearing and sleeve or discharge and discharge shaft and sleeve or set of matching between the surface will form a layer of oil film, can significantly reduce the force needed to install bearing, easy to install and remove.