One-way bearing type: open cooperation bearing factory
by:Waxing2020-11-09
Outer elliptical raceway is adopted so as to increase the number of loading roller adopts hollow roller, in the process of the load to cause all roller bearing inner uniform loading without elliptic raceway.
Pay attention to the equipment noise or abnormal vibration;
When bearing radial clearance cannot be measured with a feeler, measurable bearing in axial travelmotion, instead of the decrease of the radial clearance.
Because the shaft current damage occurs mainly in the frame number is above and variable frequency power supply of motor and common in large and medium-sized high-voltage motors, the measurement of insulation resistance measurement of insulation bearing, can separate the bearing, but the good is will take place after bearing installed on the shaft.
Input and output voltage ratio is equal to the ratio of the coil number of turns, energy remains constant at the same time, due to the heating method can detect the current, so the bearings will be magnetized.
This kind of situation, have a mechanic before met, before the car ride well, replace the motor bearings, may be due to vibration, a certain hall is damaged, vehicles may not run.
Diameter series diameterseries part of our current standard size package, the increment series of bearing outside diameter, for each standard bearing inside diameter, has a diameter series, and often have a specific relationship between the diameter.
Lubricating oil injection times every hour, for example, the importance of the corresponding equipment and machinery, decide to check out the project and the implementation of regular inspection, from bearing maintenance management is a must.
Installing a bearing, keep the strength of the ring and rolling body components in a correct position, fatigue spalling under the action of alternating contact stress, fatigue peeling phenomenon not only happens under the surface, but also occur on the surface.
Fan mechanical vibration of the rotor vibration caused by the unbalance of the rotor vibration caused by unbalance caused by uneven original manufacture error or installation of mass unbalance;
The bending deformation of the rotor, rotor parts loose or rotor parts of uneven wear, etc.
When installed system vibration caused by the error of prime mover and work machine in the right connection;
Bearing deflection or different heart;
Due to the rise of temperature of the prime mover and work machine in running different heat caused by wrong medium;
Collision between dynamic and static parts or vibration caused by the friction of caused by bad installation in the process of running rotor deformation or rotating and stationary parts of friction;
Bearing vibration caused by the wear and tear of damage due to bearing quality or poor maintenance operation, in the cause of fan vibration at the same time also will cause the shaft wear and tear.
If bearing a serious fault and for some reason, hot, bearing should be removed, identify the cause of fever;
If the bearing fever accompanied by noise, may be bearing cover and shaft wipe dry or lubricating grease.
Individual grease molecules at high temperature, may also appear molecular chain rupture, the combustible gas does not need to be flame can ignite at high temperatures, while some grease molecules on the bearing carbon black, as shown.
Drop point lubrication is typically used for peripheral speed is less than ~ m/s in the light load and load bearing, from a container via hole, needles, valve and other supplies roughly quantitative lubricating oil, the classic is drip oil cup, drops of oil varies with oil viscosity and bearing clearance and oil hole position have significant changes.