Bearings, car wheel bearings how to maintain

Bearing damage are to be kept after the first field used for bearing failure analysis, in the process of transportation by the vibration and the bearing on the idle equipment for a long time in a pseudo brinell indentation damage can be observed. B, bearing points of cleaning the rough washing and fine washing, also can be used in the metal frame is put on the bottom of the container, c, coarse, washing oil using a brush to remove grease or adhesive. Therefore prevention should be paid attention to in the production of broken motor dynamic cone cone imbalances, found moving cone imbalances, shall timely find out the reason and eliminate, prolong the service life of moving cone and equipment parts. Cooperate with rolling bearing of the shaft, shaft and the shell shell hole common tolerance zone hole and the selection of rolling bearing with correct selection of bearings, preserved the normal operation of the machine, improve the service life of the bearing, give full play to its bearing capacity is very big, when the choice should consider the following factors: the type of load bearing rotates, according to the synthesis of relative ring radial load acting on the bearing rotation, as shown in the load can be divided into local load, cyclic load and oscillating load class, as shown in figure. Nine, basic load rating of basic dynamic load rating ( C) Basic dynamic load rating is to make the same set of linear systems under the same conditions, respectively, to walk, not due to rolling fatigue damage materials including %, and walk at a constant direction x & amp; sup; When the load; Basic static rated load ( Co） Basic static rated load is made under great stress on the contact part of the roller deformation and rolling deformation of the sum of the diameter of the roller. Low clearance code symbol meaning/radial clearance for group C/C radial clearance for group - — Radial clearance for the group, that is, common set of radial clearance for clearance/C/C radial clearance for groups/radial clearance for group C/CM for motor bearing clearance low vibration level code Z - — Bearing vibration acceleration level extremum categories, from low to high as follows: ZZZZV - — Bearing vibration velocity magnitude extreme value categories, from low to high as follows: VVVV configuration code symbol meaning DB installed back to back in pairs, example: C/DBDF installation, face to face in pairs: / DFDT series installed in pairs, example: C/DT bearing seal structure Z - — With dust cover bearing used in pollution is not serious and there's no water, steam and other contact bearing bearing configuration. Remove tooling medial incompletely fulfilling place, after the removal of discharge groove excess material after measuring the repaired axis neck size & amp; #; Plus, mm, with sand paper to grind the journal after washed with anhydrous ethanol. In addition, for example, production of non-woven business have a corrugating machine, rolling machine and paper mills because of calender rollers need heating way, including electric heating, steam heating and heat conduction oil, work environment: inlet end bearing surface temperature measured ℃, estimate the bearing internal in ℃ or so, load: belongs to the medium load. CSB - EPB series plastic sliding bearing has the following characteristics: plastic bearing as a whole are lubricating material, long service life. Plastic bearings use does not happen in the phenomenon of rust and corrosion resistance, and metal type of bearing is easy to rust cannot be applied to chemical liquid; Plastic lighter than metal bearing quality, it is more suitable for modern lightweight design trend; Plastic bearing manufacturing cost is relatively lower metals; Plastic bearings is the injection molding processing and become more suitable for mass production; Plastic bearings in operation without any noise, have set vibration absorption function; - plastic sliding bearing is suitable for high and low temperature work ~ + degree; Plastic sliding bearing not only can be made into the shape of the shaft sleeve, also can make plastic linear sliding bearings, but the premise is made of the material must pass a modified to improve its self-lubricating composite wear resistant performance. Spindle after starting immediately cease if enough time because the system output pulse, M code, the output of the adjustment system is time; If because of frequency converter in dynamic state, then we can refer to the instruction for use of frequency converter, set up parameters; If damaged because of main shaft line control components, we need to check all the electricity on the road all touch the contacts are in good condition, check whether the dc relay contactor is damaged, contact not self-locking; (4) if it is a spindle motor short circuit, causing thermal relay protection, we need to investigate the cause of short circuit, to reset the thermal relay; (5) if the spindle control circuit without self-locking circuit, and the parameter is set to the pulse signal output, make the spindle will not operate properly, we only need to control the spindle system to control parameters instead of level control. Using the appropriate lubricant, middle and high frequency signal demodulation method of intermediate frequency signal frequency range for kHz - KHz, high frequency signal frequency range for kHz - kHz。 Oh, kaka, useful, whether it's hot spraying or repair welding machining process, the repair process of thermal stress concentration problems, lead to shaft deformation or broken shaft of hidden dangers.