Import the one out of stock of bearing with 6204 – E bearing NTN
( 2) The needle bearing of the collar of needle bearing entity of the entity collar, the commonly used entity collar needle bearing is NA type and RNA type. The entity collar needle bearing is used in the lathe, car change-speed gear box more, its advantage is that the sectional size is small radially, the radial load born the weight of is large. The entity collar needle bearing of the normal form all have retainers, so the great of rotational speed, can meet the needs of lathe, car change-speed gear box.
( 3) Make the needle bearing up
Make the needle bearing up, it is the shutting of entity collar needle bearing and ball bearing, roller bearing.
( 4) Needle roller, retainer assembly needle roller, retainer assembly, in fact it is the needle bearing which does not have the collar, many connecting rods used for change-speed gear box, motorcycle, car of this kind of bearing are large, small end. Because warm in the cylinder raises, so the high temperature resistant bearing.
The methods of erection of imported bearing of different classifications are different
It is numerous to import the method of erection of the bearing, different working conditions that and the bearing uses were specially designed according to the bearing of different classes. Before blackout of bearing, it is operated that explain according to the installation of bearing strictly. All kinds of imported bearing methods of erection of thorough understanding, can lengthen the life time of the bearing, improve the turning precision of the bearing and stabilize the characteristic.
Method of erection of precision mainshaft to adopt, heat, cooperate with law mainly, used in horn, contact the intersection of ball bearing and bearing accurate installation of product often, because the precision of this kind of bearing is high, and toughness is good. Will not be changed to heat the size of installing the rear bearing in the high temperature, the precision will not be influenced. If change pressure into, install law, will receive the slight flaw while being better to force the structure of the rear bearing, the precision of the bearing, stability characteristic will drop. Heat and cooperate with the law to be to heat the bearing, utilize expanding with heat and contracting with cold the principle changes the interference fit into the loose fit method of erection. It is the most common method of erection to heat and install the law, the this method is suitable for KOYO with bigger increscence amount and import the installation of the bearing, may the intersection of separate type and collar of bearing put into fuel tank and heat 80-100 ¡æ evenly bearing before heat install, then take out as soon as possible putting axling into in oil, for prevent the intersection of inner circle and end with shaft shoulder laminate urgent cool, the bearing can be fastened axially after cooling.
Import the one out of stock of bearing with 6204 – E bearing NTN
And a more common method of erection is pressing in the law, this kind of method of erection is mainly suitable for the cente adjusting roller bearing, cylindrical roller bearing,etc. to bear the weight of the bearing part with bigger load. The above-mentioned two kinds of imported bearings bear the weight of large load, after the installation of pressure, have a little effect on characteristic of the bearing; It is that a backlash of the bearing is relatively big to be suitable for the pressure and install one of the most important points, after pushing, the structure of the bearing will not be changed. It is fitted tightly that NTN imports inner circle of bearing and axle to make, outer lanes and bearing seat holes are relatively at the time of loose fit, available pressure machine pigeonhole, mount at the axle first the intersection of SKF and bearing, axle together with import the bearing, put into seat hole of the bearing together, pad the assembly clutch (copper or soft steel) that a soft metallic material is done in importing the inner circle end of bearing at the time of pressure mounting ; Import bearing outer lane and bearing seat hole to fit tightly, inner circles and axles are relatively at the time of loose fit, can import IKO the bearing to press in the seat hole of the bearing first, the external diameter of the related tube of this fashion should be slightly smaller than the diameter of the seat hole; When NTN imports bearing ring, axle and seat hole to fit tightly, installing the indoor cycle sum outer lane will be pressed in axle and seat hole at the same time, should be able to escort the end of outer lane of the cycle sum in the urgent bearing at the same time in structure of the assembly clutch. Three kinds of situations that the method of erection of the pressure appeared must be found out before installing, otherwise will give and install and bring the inconvenience, and will influence the use of the bearing.
SKF bearing maintains the skill
SKF bearing breakdown maintenance
When SKF bearing breaks down, want the operation which stop the machine in time, after the bearing is cooled, are overhauling and safeguarding.
1,Various mechanical scars, for example fray, scratch, weigh wounded, damage etc., will cause the bearing to be installed badly, cause, lean towards year and stress concentration, lead to the fact and rotate the precision and decline of life time.
2,Corrosion, black bark and pit, the last two kinds are apt defect of storing the moisture and dirt, it is aptest to develop into corrosion. But the corrosion is the pollution source that results in installing bad, early abrasion and fatigue, the severe corrosion will make the bearing scrap.
3,Various crackle, such as the crackle of raw material, forge crackle, heat treatment crackle and grinding crackle,etc., the crackle will become the stress concentration source and expand rapidly in the operation course of the bearing afterwards, cause the bearing to break, the impact on bearing life-span and working safety is maximal. In fact, as to the bearing of the important use, the bearing factory has already made up the part and carried on 100% of the magnetic force or ray flaw detection inspections to it.
4,Peel and fold, these two kinds of defects are too some to combine firm with the metal of matrix, and often have decarbonizating or poor carbon phenomenon in various degree around it, the easy avalanche of material, pressing concavely or abrading, very unfavorable to the bearing life-span and precision.
5,The retainer one rivet or weld quality, it off-normal, crooked, lax, lack on meat observe mainly whether rivet head is or “double-fold eyelids ‘, whether the position welded is correct, whether the pad is big or too small, can’t weld firm or weld to excessively cause and block rollingly to reflect alikely.
Maintenance on schedule of SKF bearing
For ensure ª¦, normal operation of host computer, according to to want, beg to surrender the intersection of design and practice of bearing and use, teach, presume one the intersection of service cycle and the intersection of ª¦ and scheduled maintenance host computer.
Early warning maintenance of SKF bearing
Employ progressive skf bearing failure diagnosis skill ª¦ to real-time monitor ª¦ and produce the trouble condition to publish the advance notice ª¦ to carry on maintenance to the user mode of skf bearing in the bearing.
Bearing, skf of ª¦, ª¦ must have voice, temperature, the intersection of person who shake and scene appear in turning round process in addition. Therefore ª¦ protects and keeps fit ª¦ and can pass and hear to the bearing in operation, methods such as feeling, temple and employing the failure diagnosis instrument of the bearing,etc. invent the unusual change ª¦ of the bearing to conclude whether the bearing is in odd-shaped working condition according to the state of the alteration. NACHI6026 imports the bearing
FAG618/600 imports the bearing
SKF7309B/DF imports the bearing
NSK22322CC/W33 imports the bearing
NTNUCFLU306 imports the bearing
NACHI6303-2RS imports the bearing
INANA4928 imports the bearing
TIMKENHM907635/HM907616 imports the bearing
NACHI606 imports the bearing
NTN6220N imports the bearing
SKF6048 imports the bearing
NSKUCFU214 imports the bearing
SKF634-Z imports the bearing
NACHI23252CACK/W33 imports the bearing
IKORNA4920 imports the bearing
FYHUC322 imports the bearing
SKFUCFU206 imports the bearing
NSKUCP205 imports the bearing
NACHI6219N imports the bearing
KOYO16060 imports the bearing
NACHI22326CCK/W33 imports the bearing
SKF23168CAC/W33 imports the bearing
IKOK7 * 10* 10 imported bearing