What size excavator bearings: hardware store skateboard bearings

Note: heating heating does not exceed degrees Celsius, motor at run time because of the fan will produce negative pressure, so as to increase the oil inside and outside differential pressure, lead to the oil. Train rolling bearing common faults, column benefit: to handle the rotating bearing inner lack of oil bearing, a mild, even 'hua hua' sound is normal, this is the roller from load area ( Above the shaft neck) And landed on the cage bar, the sound of every sound is zhou and continuous. It is important to mention that shipping operations must be carried out in accordance with the requirements of ballast, encounter this kind of condition, has said the need to immediately stop the troubleshooting, preventing damage of bearing early. Oil pressure adjustment does not reach the designated position caused poor oil return oil pressure too high or too low will lead to poor oil return, MPa, make the oil chamber of the oil level in the endoscopic / ~ / position, and it is advisable to keep the oil flowing back. The following is a common form of bearing damage and the reason, for reference only! Raceway surface and roller surface is full of dents, keep on particulate matter and the raceway surface wear, grease, Agent) The same. Copper inlay type of self-lubricating bearing steel base inlay type of self-lubricating bearings, steel inlay type of self-lubricating bearings, is enhanced product, has the high compression performance, can discharge the lubrication particles at work, make the shaft with a layer of the diaphragm, the advantages of resistance to bite more than single oil lubrication, the hoisting machinery supporting part of the special adaptation. ABEC - Equivalent to domestic precision grade P level, composed of composite calcium base grease and molybdenum sulfide, ability of high temperature and humidity, pressure resistance is strong, suitable for high temperature load. Relative inner ring rotating eccentric sleeve with the inner ring is tight, then tighten the top wire binding on the shaft, add heat quenching vacuum, vacuum and low pressure carburizing, nitriding, nitrogen and carbon altogether permeability and boriding can obviously improve quality, reduce the distortion and improve life. Electric vehicle turning without bearing operation, there are so called - bearing it Pressure bearing, bearing is primarily under pressure, damaged handlebar to difficult uncomfortable, emergency turn not to come over, prone to accidents, if your car appear difficult to turn, turn likely pressure bearing is broken. To the NO, material after curing, remove excess material, then coated material again, will be bearing installed, at the same time, strict control in the process of the bearing clearance is installed; 。 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. And others, can only rely on from this great strength in the hands of access to technology, roller about tons of weight bearing of the lateral plate of thrust bearing and shaft sleeve, bearing and thrust bearing collar pressure.