The centripetal ball bearings: skateboard bearings how

& emsp; & emsp; Generator V appeared on the front bearing end cover of black mark, this is a common characteristic of this kind of fire accident, also before the generator bearing oil incomplete combustion and direct material according to the fire place. Put the ball in the clearance between the inner ring and outer ring of the steel ball into the clearance between the inner ring and outer ring, then the inner ring has been in the past, towards the direction of the steel ball steel ball stuck in the groove. Bearing the structure of the self-lubricating bearing is developed on the surface of the bearing substrate metal friction pores, orderly arrangement of the appropriate size and embedded molybdenum sulfide, graphite, etc made from composite self-lubricating block set on the metal sleeve, made of composite bearing, friction area of - % of solid lubricants. Machining surface roughness or worn to choose lubricating oil of high viscosity, drops of oil varies with oil viscosity and bearing clearance and the oil hole position different significant changes. — — Level or the level of instrument testing can understand each section of the battery discharge voltage and time, because the instrument is connected directly to each section of the battery test, h, cause analysis, generally speaking, if the problems are universal, so is design problems, such as computational intensity or allowance is too small, and so on. Motor bearing buyers reaction shaft lubrication trouble very cumbersome, for any lubrication method of simple point? So small make up to bring us five today you don't know the motor bearing lubrication tips. Temperature adjustment of hardness, different tempering steel grade change, lubrication sealing structure design is not reasonable at present domestic many vibrator bearing with grease lubrication, labyrinth seal structure and seal clearance in ~ mm. Maintenance and dismantling vibrator should pay attention to the following: when disassembling vibrator shall be conducted in a clean area; All parts must be cleaned before assembly, remove the burr; Tapping bearing inner and outer circle cannot be directly; All assembly surface coated with lubricating oil before assembly, such as lithium base grease; Carefully check the sealing ring, if you have aging or damage, change in time; Into the right amount of lubricating oil such as lithium base grease, etc. Assembly must be noticed when Y type sealing ring end face itself; All bolt fastening according to regulations, every fastening the next day at the beginning of installation, more times in a row, after check once every two days. Agriculture, completely liquid lubricated bearing high speed performance is very good, especially when static pressure type that USES air as a sliding bearing, the speed of r/min - Methyl amino acetonitrile. The purpose of the determination of the motor shaft voltage is to know the size of the motor shaft current. Determine the purpose of the motor shaft current is obtained directly through the motor bearing current value. On the cross section, with the naked eye or a magnifying glass observation, evaluation criteria: assess the level of the first figure in the GB/T, can also according to the regulation of ASTME assess. Small oil film thickness & amp; emsp; & emsp; Technology, now, in addition to the traditional old process, many rely on new technology process are also beginning to online, such as the popular carbon nano polymer materials.