Bearing lubrication: bicycle pedal bearings how

Mm, the width is two kinds of mm and mm, # mill turn ( The finished sheet frame) Quantity, between the wire to wire, bearing damage form below; Tutu figure is the group on both sides of the backing bearing inner ring damage form, on both sides of the damaged condition, the same damage location is # and # bearing inner ring in the picture. Do you think small clearance? So should be c clearance or choose MC clearance? After installation clearance whether to thermal expansion of the space? Should have how old? Why would the bearing failure? Bearing damage as a form of hardness is insufficient, axial, general fatigue, outer ring fracture, overheating TrueBrin - Methyl amino acetonitrile ellin - Of the methyl amino acetonitrile g, fretting wear, scratches hysteresis plug, tight fit, excessive reverse load load, lubricant failure, guard fracture corrosion, pollution, gully erosion surface hardness deficiency symptoms: the position of each ball with elliptic grinding crack. But this method is difficult to keep oil, because of negligence forget to come on is larger, usually only used for light load, low speed or intermittent movement of the occasion, good operation, on the oil-way set dust cover or ball valve, and filter felt, cotton, wool, etc. This is caused by friction between screw and host increases, severe friction will damage motor to a large extent, the motor is in a state of overload operation, which in turn causes the damage of motor fire burned. & emsp; & emsp; Two bearings in series with the first back-to-back structure, it make the spindle has good rigidity, high speed, widely used in CNC lathe, machining center, etc. Mm, at the same time, in the implementation of measurement after grinding indentation, during the assembly of bearing and roller, the axial clearance of bearing for after the actual measurement. Speak like winter and summer cold north area can achieve ℃ environment temperature difference, if the length is m shaft installed in the summer, winter's big shrinkage ( When stop) You can close to mm. Axle box temperature is related to many factors, such as on a FAG bearing load, speed and line state, temperature, wind speed, continuous running time, the amount of grease and state has a significant effect on temperature. For example the first set of bearing 'H' slightly larger, on both sides of the bearing H value decline a few microns, material after curing, boot operation, and periodically check and tighten bolts pressure plate. Therefore, in many parts of the automobile and engineering machinery materials used as lubricating grease, namely we often say butter! The role of the grease is mainly lubrication, protection and sealing. To turn, swing or speed is very low, n - Methyl amino acetonitrile r/min - or less Methyl amino acetonitrile) Bearing, is main failure form of plastic deformation, reason should be calculated at rated static load strength. The intermediate roll is moving, slight can run one thousand hours, serious can only run for a few hours or even a short period of time, bring huge influence to the safety production.