What is a good oil bearing rank: skateboard bearings use

Motor sound is very good when it is assembled, but in the warehouse put some time later, the motor sound is very big, but remove the water pump shaft even imported bearings have serious rust phenomenon. When large amounts of interference, can use oil bath heating or sensor heating method to install the bearing, the heating temperature range for ℃ - ℃, high cannot exceed ℃, at the same time, nut or other appropriate method is applied to tighten the bearing, in order to prevent the bearing width after cooling contraction and make the clearance between the ring and the shaft shoulder. Figure current leakage form the inner ring rolling on corrugated grooves and yan dim ball & amp; emsp; & emsp; A completely off bearing internal potential difference is very difficult, but can prevent or greatly reduced through the current bearing, can prevent the corrosion of the bearings. Mm, more than the original data, bearing does not need maintenance, so its life besides itself quality problem, also had a lot to do with vehicles using the environment. : : min - downtime After methyl amino acetonitrile, trigger the gearbox bearing temperature on the high side, more than ℃ temperature, when the coupling cover part was burned into ashes, after some flame spray and heat directly to the gear box temperature sensor and gear oil thermometer, therefore, in the min - downtime After methyl amino acetonitrile: : trigger 'gear box bearing temperature is too high, more than ℃ temperature, in: : when the gear box bearing temperature for ℃, after min - again After methyl amino acetonitrile, gear box bearing temperature rise again ℃ or so, temperature rise rate is far more than just stop after period of time. Hydraulic drawing hydraulic device is adopted instead of screw thread, the pressure in the middle of the piston out, when bearing will constantly be pulled out, than the traditional thread drawing device can quickly back more quickly and hydraulic equipment. & emsp; & emsp; Unit to downtime and engine front bearing temperature & amp; emsp; & emsp; From the point of accident playback record, in: : ( Time: when the vehicle; The same below) For the generator speed. According to motor bearing chamber wear problem, traditional solutions such as machining, Mosaic collar after repair welding, brush plating, spraying, pitting, scrap, etc. , these methods are in definite extent cope with the demands of the production, but can't fundamentally solve the problem, and continuous production also planted hidden danger to safety, such as high temperature deformation, crack, coating fall off; At the same time, the continuation of the traditional methods of equipment management work also won't bring substantial improvement. M/s, the oil viscosity ℃ - Mm/s, circulation, oil bath lubrication way, suitable lubricating oil - Chronic kidney disease (CKD) gear oil; ℃ oil viscosity Mm/s, drip lubrication way, hand watering, suitable lubricating oil - gear oil chronic kidney disease (CKD). On many back to the rotation sealing device, magnetic liquid seal has been widely used, such as monocrystalline silicon furnace, vacuum brazing furnace, vacuum melting furnace, chemical vapor deposition, ion plating, vacuum equipment, such as liquid crystal regeneration sealed, as well as high temperature and high pressure equipment and to [ wiki] Environment [ / wiki] To demand higher sealing equipment. Big rigidity, high hardness, even at low temperature, high impact strength; , the outlook in recent years, engineering plastic products with its superior performance won more and more widely used. Sliding bearing truck axle box installed on the outside of the wheel axle box device, by the axle box body, axle box cover, bearings, bearing plate, oil device and dust shield, steam locomotive traction wheel and the wheel on the axle box is placed in the inside wheel, oil box of oil lubrication journal, other parts with the same parts.