Bearing installation: bearing screw precision level how to distinguish

This type is not only a long bearing life, bearing configuration reliability is high, and has a high precision rolling finished product, easy to control, and many other advantages, so is widely used at present, more than used for wire mill, plate mill, cold rolling mill and foil mill, double support mill support roller hot rolling mill, etc. Sauvy industrial online repair machine, rewinding machine bearing a wear steps according to the equipment operation parameters and the size to determine the caliper process; Processing caliper; Baked oil until the oil carbonization for repair parts; (4) of dry axis wear surface polishing treatment, surface as rough as possible; (5) according to the volume ratio: the ratio to reconcile SD carbon nano polymer materials, until no difference; 6 axis repair place daub SD materials evenly without porosity; All landowners with calipers delay datum to research, to restore journal size; Today check fix size materials after curing; Pet-name ruby coated SD material again, Ann to hot charging bearing and axial fixation. Rolling bearing in the process of use due to the quality of itself and the external conditions, the cause of its bearing capacity, rotational accuracy and antifriction performance etc. Will change, when the performance of the bearing is lower than the use requirement and cannot work normally, is called a bearing damage or failure, the rolling bearing damaged the damage is much more complex than a mechanical parts. May according to the ring presence of guard, NU, NJ, NUP, N, NF, such as single row cylindrical roller bearings, double row cylindrical roller bearing and NNU, NN and other. Example: F - — Bearing inner and outer diameter tolerance and radial clearance compression, we even specially designed for long board the spacer ring, few other companies to do so, example: K x, F sauvy technical team overnight drove thousands of miles to instruct maintenance of anshan steel group, got the anshan iron and steel group management to high praise and recognition. Which shows that the evaluation of bearing over-current risk grade of a reliable principle is calculated through the current density of bearings, in other words, the effective amps were divided by the rolling element and the inner ring and outer ring raceway contact area. & emsp; & emsp; Bearing in the converter rotating joint have the effect of the support, rotating and concentricity, joint bearing is good or bad will directly affect the performance and the use of life; Inferior bearing surface rough, uneven chamfer, work when there is a noise, bearing inner and outer ring of the curvature ratio is out, resulting in the insufficient concentricity; Rotary joint sound bearing internal impurities, when bearing rotate faster working hours will be stuck, the inside of the joint ball broken cause bearing does not spin, if the rotor of the rotating joint weight is too big, poor quality of the bearing is easy to be bad rotor gravity pressure, rotary joint wouldn't turn at this time, there are points, bearing impact will also increase the tolerance clearance of concentricity, swing, is a major form of abnormal directly do not change the rotary joint, can observe more, might simply change the parts. Bearing, the conclusion bearings are important for mechanical operation, by keeping lubrication, avoid immersion, avoid overload overspeed, can prolong service life. Features: simple diagnosis; For bearing judgment effect is good, bearing, flake or cracks can produce different types of acoustic emission signal, on the basis of bearing condition assessment. Bearing load, according to the direction can be roughly divided into: radial load and axial load, the composite load; According to the different nature in the process of loading can be divided into: pulse, constant and alternating forms. Improper assembly will lead to appear afore-mentioned A variety of bearing fault forms, as well as the following several ways: A, mismatch: bearing inner hole with the shaft with the use of hole system, the matching of the cylindrical bearings and bearing hole adopts the basic shaft system. In addition, improper bearing removal, the equipment anchor bolt loosening caused by vibration, can also lead to bearing raceway and rolling body produce indentation, cracking of bearing inner and outer ring.