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1, bearing oil, pour to scold Imported bearing oil generally smooth, smooth scold me always speed bearing is smooth. At home to CanShi local bearing oil moisturizing and rotating bearing accessories bonds must return to the starting point, if a little less in the center of the oil minimum rolling body deployment. 2 drops of oil, lower bearing is smooth Drip smooth mountain perform ingredients put dry SKF 6203 Bearing Purchase parts material batch 3-8 seconds drops is advisable. Excessively high temperature bearing grease.
3, bearing oil, circular circle Oil pump is exclusively for LiuGuang iko bearing parts at any time after the oil filter bearing use after an impasse. Heat cooling and circulating oil theft was arrested, precision shaft, restore law practice recorder high bearing parts.
4, spray smooth bearing In the wet air shrinkage and smooth oil spray mist, chaos airflow, launch in cold bearing shaft if really can prevent intrusion detection. Waiter mountain highway, low temperature bearing part is smooth. 5, circular radiation Lubricating oil of low pressure pump bearing, bearing hole to shoot at an enemy to celebrate in the ryugyong ty. Bearing in high speed rotary rolling body and keep the steam is valued, rotational speed, smooth moving smooth flow from all around it is difficult to separate oil bearing spacing and the low pressure so smooth, when oil bearing -- to maintain the status quo, gap, and the central university.
Iko bearing grease in the bearing different form open, learning, to achieve a better profile is ZouGe short-term fever for a long time, start and finish bearing. It is more smooth, so also grease lubrication sliding groove is very important. Some of the so-called flow pattern, otherwise it is not easy to form a fat education situation and repetitive lung collapse even real coup ShouShen fat bearing position dear decisive and for a long time, high temperature at college, not only can appear random noise is apt to deteriorate and lubricating grease.
Bearing different according to the direction of the load bearing, stainless steel bearings mainly take radial load, bearing can withstand can bear radial load and axial load, bearing mainly bear axial load. Bearing under load conditions, is the radial load acting on the shaft, Fr and Fn were acting on the shaft bearing radial load on both ends. Bearing under the action of radial load, bearing and roller contacts inside and outside the circle by pulsating cyclic stress the role of the fatigue pitting, bearing running after reaching a certain time, make the rolling element bearings, inner and outer ring raceway lose its original shape, the axis of rotation accuracy is reduced, the machine vibration and noise increased, resulting in bearing failure. SKF 6205 Bearings loading situation, Fr and Fn were acting on the shaft radial load and axial load, Fr and Fn were role on the left side of the shaft bearing radial load and axial load, and Fa2 were acting on the shaft right end bearing radial load and axial load. NTN bearing under the action of radial load and axial load, fatigue pitting occurred not only, and under the action of axial load, end bearing is compact, the other end of the stainless steel bearing is relaxed, contact surface pressure end bearing element, but also produce wear, so to speed up the bearing failure. Bearing under the action of axial load bearing elements inherit the extrusion, therefore in the process of operation and roller contact on inner and outer surface fatigue pitting corrosion and wear. Overload or excessive impact load of rolling bearing damage is very big, will cause the bearing and roller contact point on inner and outer plastic deformation occurs, permanent deformation and bearing component, the bearing life shorten. Types of bearing lubricant and (and); The size of the bearing work environment, take up the space; Shaft supporting structure advantages, allowing the angular deviation; The circumference of the sealing surface speed; The working temperature of bearing; The manufacturing cost. Thickener is also related to oil, water grease thickener determines the resistance of the water. In principle, oil do not mix different brands, even if thickener, grease is also due to the different additives affect each other. Painted the bearing with anti-rust oil, must be clean petrol or kerosene cleaning carefully, and then use a clean, high quality or high speed high temperature grease before installation. Closed bearing not clean fuel. Self-aligning roller bearing in the installation, if not carefully adjusted, adjust bearing pain, may lead to more friction and vibration. These could accelerate fatigue, reduce SKF bearing mechanical parts may damage the life of a life. In addition, the increased vibration and friction can greatly increase the energy consumption and the risk of premature failure. In use process, often the basic monitoring of spherical roller bearing external, such as temperature, vibration and noise measurement conditions, and so on. Potential problem these regular examination, early detection, prevent the machine from accidental suspended, hence leading to the implementation of production plan, improve productivity and efficiency of the factory. Rotating bearing, should be very smooth without sound, also should not have impurities. Stainless steel bearings allow running noise slightly in the work, if you have any abnormal noise or excessive noise or sound, suggests that the bearing failure. Bearing anti-rust treatment using a slight aroma of anti-rust oil, and the dosage is not big. Make the whole stainless steel bearing clean fragrance. Bearing in the horizontal plane and vertical plane junction with fine chamfering, and has a dark side. Bearing in the process of normal use, installation of bearing parts allowed to have a certain temperature, when the hand touch body shell, should not feel hot as normal. If NTN bearing use process temperature is too high, it can consider lubricating oil quality meets the requirements or metamorphism, the high viscosity of lubricating oil; Or install the assemble tight, bearing assembly too tight; Bearing cage or rolling body fracture, etc. Bearing noise can be caused by many reasons, one is the bearing inner and outer surface wear. Again, the bearing lubrication, forms the dry friction, and bearing broken etc all make abnormal noise. Keep the stainless steel bearings and lubrication clean is very important. Need before checking surface cleaning machine, and then remove the perimeter of the bearing parts. Oil seal is very fragile parts, so need to carefully remove, not excessive force, and then carefully check oil seal and its surrounding parts, if has presented the adverse symptoms, be sure to replace, and bad seal will result in bearing damage and severe equipment downtime.
1, the carrying capacity of Rolling bearing with rated static load and the basic dynamic load rating C said bearing capacity. Static load refers to the maximum axial load rating of the rolling element and raceway contact center caused the maximum contact stress values as the standard value, static load bearing can withstand, reflect the static bearing capacity; The basic dynamic load rating is the basic rating life of 10 power 6 turns the constant load, the bearing reflect its mobile life under dynamic load capacity.
2, service life and reliability Bearing ring or rolling body material appeared before the first signs of fatigue peeling a another ring ring relative to the total number of turns or under a certain speed operation hours is called life. The same batch of bearings in the same working conditions, the service life of bearing. The reliability of a SKF 6202 Bearing By China probability for the bearing meet life, usually expressed in reliability. The life of the standard stipulated in the reliability of 90% as the basic rating life of bearing. 3, speed characteristic Refers to a certain limit speed load of rolling bearings, bearing lubrication conditions allow the highest speed. 4, friction torque Bearing friction torque caused by temperature rise and power loss, the precision instrument China affect the accuracy and reliability of the system. Friction torque and the bearing type, structure, size, manufacturing precision and so on factors, also affected by load, speed, lubrication, etc. The influence of work condition. Good lubrication performance of the bearing load of 0.1 C,.
5, running accuracy The precision of the rolling bearing, according to the tolerance grade classification of tolerance includes dimensional tolerance and revolving tolerance allowable deviation. General bearing tolerance grade 0, 6, 5, 4, 2, and so on five grades, and tapered roller bearing can be divided into 0, 5, 4, 6 x 4 levels. In turn, from low to high precision, for regular grade level 0, the most widely used. 6, vibration and noise Vibration and noise caused by the pollution of the environment, and directly affect the host performance, performance of the rolling bearing is important. Bearing vibration of bearing operation in the process of bearing parts deviation theory position movement, measured by vibration velocity or acceleration. And bearing noise from running bearings must be sound pressure level as a measure of distance.
7, self-aligning properties The bearing performance is refers to the axis deflection, two bearing hole misalignment or other reasons when the shaft and the bearing hole axis tilted relative bearing can automatically self-aligning between inside and outside the circle, maintain normal work ability. In the range of allowable self-aligning, won't produce additional stress in the bearing, had no obvious effect on life, but the noise will be slightly increased. Self-aligning ability mainly depends on the structure of the bearing, self-aligning ball bearing and spherical roller bearing outer raceway is spherical, therefore, has a good heart performance. And cylindrical roller bearings, tapered roller bearings and needle roller bearing is hardly has self-aligning properties.
Heavy-duty bearing type selection and the main points of the high points in the selection of bearing rigidity are basically the same. Heavy-duty bearing application problems, must be combined with the working characteristics of heavy-duty bearing consideration. Heavy-duty bearing work often are in a state of high stress, the bearing is sensitive to high stress, so the application technology of all links to strive to reduce the stress of the bearing, the stress of slow is very beneficial to prolong the life of bearing. Machine such as high load under the condition of axial position allows, the original with a protection for the single bearing multiplication of two only to bear radial load, and despite the influence of uneven load, under the condition of the same workpiece, the fulcrum of two bearings under the condition of different than the original single bearing life, is expected to increase more than twice as much. As a matter of fact, in the heavy machinery is often in a fulcrum to use multiple bearing or more columns bearing to bear radial load. (a), rolling mill bearing makes data statistics Used for rolling mill bearing and damage data statistics, and find out the law of the rolling mill bearing damage common problems, so that accurate specific rolling mill bearing and measures are put forward. Can be recorded from the following aspects: 1, design and precision of the rolling mill; 2, rolling product and process change implementation; 3, the lubrication effect of lubrication and sealing condition; 4, such as mill adjustment and drive site condition; 5 conditions and bearing assembly precision parts, such as the scene; Six, bearing damage forms and machine parts, and so on and so forth.service- (2), the bearing strength to match the parts In ensuring strength of bearing box (that is, the rolling mill bearing good rigid support) cases, try choosing load ability of rolling mill bearing. Also should be according to the working conditions of application of optimization design of rolling mill bearing the parts size, to ensure that the rolling mill bearing strength of various parts, to maximize the service life of the bearing. Bearing housing, for example, wear more field, large deformation, the bearing outer ring rupture can be bearing outer ring wall thickening roller diameter decreases, and enhance the strength of outer ring, in order to achieve the bearing life expectancy. 1. Cooperate, clearance and lubrication of the overloaded bearings, clearance and lubrication of the overloaded bearings must be unified. In order to ease the stress of the overloaded bearings, hope thick lubricating film, so be using high viscosity lubricating oil or high viscosity of oil as base oil and grease at the same time hope to guarantee good lubrication condition, caused by lubricant viscosity friction moment not too high. Heavy-duty bearing rotating ring fit interference quantity is larger than normal, and the raceway deformation and bearing life has adverse effect, so if possible, hope interference quantity reduced, this requires a lower with the roughness of the surface, at the same time keep the lubrication is normal, because the lubrication failure, one thousand under the overloading of raceway surface excessive friction torque to reinforce with surface creep trend, appear even skid phenomenon, although the phenomenon occurs in the outer ring, - but serious when inner ring is unavoidable. Outer ring of the actual cooperate attention should not be a big gap, in order to avoid oil penetrate the surface, prompting skid phenomenon, and make the ring is easy to deformation, reduce the bearing capacity of bearing area. Is only allowed after rigorous take effective countermeasures, appropriate to reduce heavy bearing with interference, the interference and the quantity is slightly reduced, for the improvement of the bearing stress state is bigger, of course, increasing the benefits of the oil film is even greater. Due to overloading of rolling bearing surface contact area is large, with tight, ring close to the amount and the deformation is bigger, so usually bearing clearance is bigger. 2. From the host on the design to improve all the shaft bearing conditions of use in the transmission chain of the host should take appropriate high rotational speed, until the drive to down to work again when spindle speed, and for the installation of main shaft bearing parts should be bigger, is easy to choose larger bearings, the bearings are very good.