Why spherical roller bearing failure

When the machine operation,sometimes the spherical roller bearing failure,its very big trouble ,before the spherical roller bearing failure,it usually become very hot of the bearing,there are many cause bearing overheating,so we need to inspect the reason step by step,at the first time we need to check if the machine problem,sometimes because of its parts,for example the tolerance of the parts,the concentricity problem of the house,cover,shaft ect.,maybe its very tight between inner ring and outer ring,and also maybe the installation of the unit,let us see some reasons make the spherical roller bearing failure.as the biggest of China bearing manufacturer,XRB now introduce some information about spherical roller bearing.

1.Spherical roller bearing was broken,so it must be changed new .

2.Low lubrication or much more iron filings and impurities exist,bearing grease should not exceed the capacity 70 percent of the total volume,if the dust existed in the raceway of the spherical roller bearing,it should be change new one,low quality lubrication grease or bad bearing maintenance cause the lubrication grease failure

3.Shaft and spherical roller bearing working together too tight or loose,so we need to re grinding if too tight,if too loose,engineer need to add a bush for the spherical roller bearing.

4.Spherical roller bearing and the cover operate too tight or too loose,so we have to precess the bearing house if too tight,or add a sleeve for the cover if too loose.

5.The cover of the motor ends or cover of the bearing is defective assembly,make sure the cover of the bearing is assembly well

6.Belt too tight or poor coupling assembly,adjust the tension of the belt,correct the coupling.

7.Too little lubrication oil of spherical roller bearing,dust exist or oil ring plugging,so we need to increase the oil,change new lubrication oil,repair or change oil ring.

Materials of spherical roller bearing

Spherical roller bearing with chrome steel material is very common in our bearing industry,and this kind of material bearing used brass cage or pressed cage and also can be nylon cage,just like CA(One-piece solid cage),CC(two piece press steel cage),MB(Two piece brass cage),TVPB( nylon cage),and with the spherical rollers ,these design of spherical roller bearing is the widely used in many applications.

 

With the development of industry and the improvement of the market,some application need the spherical roller bearing have the anti corrosion and lower noise ,just like the Medical Devices, Cryogenic Engineering,Optical Instruments,food process machine,so stainless steel spherical roller bearing appeared,this kind of bearing adopted AISI SUS440C(9Cr180Mo) stainless steel material,the cage is AISI304 stainless steel,and working with the high quality lubrication oil or grease,it can working high or low temperature than the chrome steel spherical roller bearing.

 

Theoretically speaking the spherical roller bearing can be made of ceramic material,but its very high cost and less market demand,so we don't talk about this kind of matarial about spherical roller bearing.
 

The raceway of Spherical roller bearing have the radian feature,and also the big and wide size ,so its very difficult in processing then the other kinds of bearings,XRB will supply  Optimization Configuration for your application,for example the selection of size,the cage for the the working condition,the lubrication,the seals and more details,we alway give our valuable customers the best solution of the bearing.

Spherical roller bearing lubrication

Spherical roller bearing need to be lubricated to operate stable and keep the smooth rolling between the raceway and the rollers and the cage,thus it will be decrease the friction of the metals,the lubrication also can keep the surfaces of the spherical roller bearing against corrosion,how to choose the proper lubrition,its very important work,let talk about it.

 

Spherical roller bearing lubrication have so much brand and grade of grease,oils and more the other materials,so its very important to select a right method for lubrication,its according to the spherical roller bearing application's working condition,for example the speed or operating temperature,and the applications also affect  the selection process like vibration and loads demand.

 

Spherical roller bearing have their special design for lubrication, one lubrication groove and three lubrication hole on the outer ring,or lubrication holes on the inner ring,spherical roller bearing usually used the lubrication oil,now let's compare with the grease and oil.

 

Spherical roller bearing grease lubrication can reach 65 percent-80percent of the Oil lubrications for limiting speed,the oil lubrication can release the heat when the bearing working.its very complex when change the grease than oil. normally ,when the bearing operation under 50 degree and little dust we suggest change the oil 1time per year,but if the oil temperature above 100 degree,it must be changed within 3months,and its forbidden to use diffent brand oil work together.

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E-mail:brandbearings@gmail.com

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Promotion of XRB spherical roller bearing

Yesterday August 11th,2015,the exchange rate of RMB:USD$ suddenly increase to 6.4:1,its mean

complete line of XRB spherical roller bearing price was lower than ever before, for example, the  bearing  22210CA/W33 bearing,the price is USD$10/pcs ,and now according to the new exchange  rate,you can only pay USD$9.67/pcs to get 22210CA/W33,so its very good new for our bearing  importers from abroad,any customers who have the purchase plan for spherical roller bearing of the end of this year,please don't hesitate to contact XRB service team. for convenient to know more about XRB bearing,i list all of the spherical roller bearing as follows.

 

22205E-22264CC/W33 

21305E-21320E

22308E-22356CC/W33

24013CC/W33-240/1120CAF/W33

23220CC/W33-232/750CAF/W33

23122CC/W33-231/1000CAF/W33

24122CC/W33-241/1000ECAF/W33

23026CC/W33-230/1250CAF/W33

 

Above mentioned XRB not only can produce E,CC cage,but also CA/W33,MB,E1, EAE4,CDE4,CJW33, BD1,BS ect. pressed steel and brass cage double-row spherical roller bearing.for single row spherical roller bearing,if you have demand,please send your bearing requirement with quantity and more technical demand of your applications.and i show some information about sealed spherical roller bearing,most of this type bearing is small or middle size,

 

BS2-2205-2CS---BS2-2224-2CS

24013-2CS-VT143---24034-2CS2/VT143

23120-2CS2/VT143---23122-2CS/VT143

24122-2CS2/VT143-24140-2CS

23220-2CS and 23944-2CS 

 

XRB sealed spherical roller bearing is the top quality in China,it can replace the Top brand  bearing of the world,your valuable source of sealed spherical roller bearing.

spherical roller bearing size chart

spherical roller bearing size chart
 

Many spherical roller bearing end user have so many question about of this kind of bearings--spherical roller bearing size,this time let us show you the spherical roller bearing size chart,you can see clearly about the common spherical roller bearing.

 

First of all,what is spherical roller bearings, we can see on the words,its must be have spherical rollers,and there are one spherical raceway on the outer ring and two raceway on the inner ring,some design of spherical roller bearing used the brass cage(CA,MB,MA,M),Some design need pressed steel cage(E,E1,CC,CD,EJ,EA),some special appliations like vibrating screen equipment we adopt the special cage design to meet the high demand about the bearings,and now i show the spherical roller bearing size chart for your reference:


These are some  size of our spherical roller bearing,and more 23000 and 24000 series spherical roller bearing and more special spherical roller bearing we can supply,just contact with our sales team.

Spherical roller bearing manufacturers of China

Spherical roller bearing manufacturers of China

 

Spherical roller bearing also named self-aligning roller bearing,this kind of bearing is widely used in Heavy duty Industrial applications like Rolling Mill,paper-making machine,metallury ,Cement ,wind power etc.,this kind of bearing must be high quality level,there are some famous brand like FAG from Germany,TIMKEN from America,NSK,NTN,KOYO,NACHI from Japan,ZKL from Czech,ZWZ,TWB, EASIER from China,this time we introduce the spherical roller bearing manufacturers of China. Spherical roller bearing manufacturer located in three place in China,Dalian,Wuxi and Shandong.

 

ZWZ belong to Wafangdian bearing group company,this factory located in Wafangdian city of Liaoning, the North-East area of China,ZWZ is the first bearing manufacturer and the industrial foundation of China,it can manufacture different structure double-row spherical roller bearing,split spherical roller bearing according to the customers demands,ZWZ spherical roller bearing can be design with CA brass cage,PO,P6 precision grade can be produced,P5 grade bearings can be customed by customers requirement,and at present ZWZ manufacture pressed steel spherical roller bearing with suffix(CC),ZWZ spherical roller bearing is the top quality in China.

 

TWB spherical roller bearing is located in Wuxi city,Jiangsu Didabei bearing company is proud of its quality in spherical roller bearing,TWB feature:

 

1.low speed,high resistance to impact,vibration

2.able to self-aligning

3.mainly bear big radial load

4.can take fair axial load

 

TWB spherical roller bearing can be different design with C cage,As second generation design, it features a stamped steel cage and strengthened symmetric roller and can offer considerable higher load ratings than conventional designs. As an alternative design of second generation, it features a precise machined brass cage and strengthened symmetric roller and has equal load ratings with C design. Therefore it can replace C design, especially for large size bearing.TWB spherical roller bearing used in primary metal,power transmission,coal mining machinery,paper making machinery,hoisting&conveying machinery,Elevator equipment and the other applications.

 

EASER Brand comes from XRB-ZWA BEARING INDUSTRY CO.Limited,its products including:

 

single row spherical roller bearing,

double row spherical roller bearing,

sealed spherical roller bearing,

split spherical roller bearings

 

EASIER bearing can supply complete size spherical roller bearing with CA,CC cage in our stock, Pressed steel cage E,E1,EAE4 and Brass cage (MB) also can be avaiable for most of the size, EASIER is the exclusive manufacturer who can produce full size sealed spherical roller bearing and single row spherical roller bearings,this brand only supply the top quality for its customers all over the world.

www.xrbearing issued

FAG sealed spherical roller bearings

FAG sealed spherical roller bearings also named sealed self-aligning roller bearing,its special design for some special applications where need clean and maintenance-free environment.Sealed spherical roller bearing have double row barrel rollers,two raceway on the inner ring and one raceway on the outer ring,the spherical rollers orient themselves freely on the concave outer ring raceway. as a result,shaft flexing and misalignment of the bearing seats are compensated. 

 

Sealed spherical roller bearing have advantage than normal self-aligning roller bearings.

 

1.very high basic dynamic and static load ratings.

2.lower frictional torque compared to the competition

3.lower grease consumption and disposal costs.

4.no requirement for expensive relubrication systems

5.longer operating life of the bearing

 

Sealed spherical roller bearing are suitable for many applications like continuous casting  plant, conveyor belts,elevator plant and the food industry.FAG sealed spherical roller bearing series 222,223,230,231,232 bearing with an oversize width are identified by the prefix WS(WS=Wide Size) like WS22215-E1-2RSR,the cage of self-aligning roller bearing have solid brass cage and sheet steel cage design,FAG adopt lubricant KP2K-20 for sealed spherical roller bearing,it can working reliable under the temperature range of -20 to +130 degree, 20% to 40% grease fill level in the bearing is interior.

 

In the standard version,sealed spherical roller bearing with designation WS have a circumferential groove and three lubrication holes in the outer ring,bearing with F-numbers have no circumferential groove and no lubrication holes.the contact seals are made from nitrile rubber(NBR),suitable for temperatures of -40+100 degree(short periods up to +120 degree).

 

FAG sealed spherical roller bearing can be interchange each other with  EASIER,NSK,NTN,SKF, ZKL, NACHI sealed spherical roller bearing,the seals are made from Rubber or metal shield,they have the same function for keep the internal of spherical roller bearing cleaning and free relubrication,

 

WS22205-E1-2RSR

WS22206-E1-2RSR

WS22207-E1-2RSR

WS22208-E1-2RSR

F808529.PRL

WS22209-E1-2RSR

WS22210-E1-2RSR

WS22211-E1-2RSR

WS22310-E1-2RSR

WS22212-E1-2RSR

WS22312-E1-2RSR

WS22213-E1-2RSR

WS22314-E1-2RSR

WS22214-E1-2RSR

WS22215-E1-2RSR

F-803042.PRL

WS22216-E1-2RSR

WS22217-E1-2RSR

F-803007.PRL

F-803031.PRL

WS22218-E1-2RSR

F-803007.PRL

F-803031.PRL

WS22218-E1-2RSR

F-803008.PRL

F-803032.PRL

WS22220-E1-2RSR

F-803000.PRL

WS22222-E1-2RSR

F-803013.PRL

F-803063.PRL

24122-E1-2VSR-H40

F-803034.PRL

WS22224-E1-2RSR

24024-E1-2VSR-H40

24124-E1-2VSR-H40

WS22226-E1-2RSR

F-803045.PRL

24026-E1-2VSR-H40

24126-E1-2VSR-H40

F-803051.PRL

F-803061.PRL

24028-E1-2VSR-H40

24128-E1-2VSR-H40

24030-E1-2VSR-H40

24130-E1-2VSR-H40

F-803010.PRL

24032-E1-2VSR-H40

24132-E1-2VSR-H40

F-803057.PRL

24034-E1-2VSR-H40

24134-E1-2VSR-H40

24036-E1-2VSR-H40

24136-E1-2VSR-H40

F-803039.PRL

F-809822.PRL

24038-E1-2VSR-H40

24138-E1-2VSR-H40

F-803046.PRL

F-803067.PRL

24040-E1-2VSR-H40

24140-E1-2VSR-H40

F-808418.PRL

F-803054.PRL

F-803053.PRL

24144-E1-2VSR-H40

F-803056.PRL

 

More information please contact with www.xrbearing.com