Recycling bearing: rear wheel bearings how to maintain

The tolerance zone position with letters ( Small said the hole tolerance, capital letter said shaft tolerance) Bearing seat, F is used for grey cast iron manufacturing, if bearing outside diameter D& gt; Mm, outer ring and bearing temperature difference & amp; gt; K。 Installation of bearing seat, and tighten the bearing according to the requirement and to measure the bearing clearance, if it is on the basis of the operating conditions, the temperature change of any fault has occurred. Lubricating oil pipe blocked due to lubrication management is not strict, fuel oil change container is dirty or pipe welding in the process of pickling is not standard, cause welding slag rust and other debris into the tubing, thus blocking the condition of the oil hole, it is found mostly in the early stage of the project. Some rotor unbalance rotor in the process of running due to medium corrosion or wear and tear of solid impurities, or bent shaft, will lead to unbalanced centrifugal force, so that the bearing heating, vibration, roll the serious wear and tear, until the destruction. Machining center spindle parts of the tie rod ball damage problem failure phenomenon: in the spindle tool automatic clamping mechanism of tie rod ball is often damaged, tool shank with tail cone are often damaged. Completely liquid lubricated sliding bearing, the choice principle: when the pressure is high and low sliding speed, choose penetration smaller varieties; On the other hand, chooses the breed of penetration is big. If the vibration is caused by imbalance, uneven quality of phase and has a fixed shaft vibration phase, at the same time it has to do with tile boost phase has a similar relationship, it is because there is such a relationship, making it possible to field dynamic balancing vibration through the tile. Litres of models of engine main journal diameter standard for, the points for attention during the installation of the crankshaft main journal of upper and lower axis promise in situ installation, adjustment shall be installed. 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。 ACD— — Can take advantage of the bearing contact Angle for degrees, medium and small sized installation tools or the inner ring with lock nut pushed into the position of the cone on the diameter of axle, CC - — Contact Angle for degrees, use clean grease clearance is too large, pay attention to the coordination and choose appropriate clearance ball scar: steel ball fatigue spalling or injury. When the environment humidity is bigger, should choose strong water resistance grease, when bearing rotating speed is very high, should choose a consistency of a thin, grease to avoid grease inside produce very big when high-speed friction loss, lower the bearing temperature rise and motor efficiency. Cage abnormal loading, causing wear failure are the major factors of lubricant or the lack of lubricant, lubrication method is wrong, there are internal grinding grain into the bearing, heavy load, etc.