Who is WRT?

A professional large & extra-large bearing factory | manufacturer in China 

WRT is the brand of Wafangdian Ruitong Bearing Manufacturing Co., Ltd.  WRT China Bearing Factory has consistently elevated its manufacturing capability and is now recognized as one of the leading Bearing Manufacturer of components and high-grade finished bearings in China. 

WRT mainly supply large and extra-large bearings (O.D. from 100mm to 2500mm), our technical and manufacturing expertise have led into regular exports order in normal bearings & industrial bearings, and other Special Bearings as per Samples & Drawings.  For more information, pls see our detailed Products

We believe that honesty is the best policy and emphasize on customer first. WRT has been expanding customer to more than 20 countries and has been reliable suppliers for some large industrial company in the world, serving to improve performance in virtually every motion product by pioneering innovation and understanding the leading technologies of tomorrow.

 
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Home arrow Products arrow Four Point Contact Ball Bearings

Four Point Contact Ball Bearings PDF Print E-mail

WRT is one of professional four point contact ball bearings factory | manufacturer in China

Four point contact ball bearings is separable bearing, owning two-piece inner ring or outer ring. its contact angle is 35 ° There are four points contact between steel ball and rings. Four point contact ball bearings can endure radial load, axial load and the combined load (axial load and radial load). This type of bearing can limit the displacement of two radial directions between the shaft and housing. We classify it by its structure .they are QJ and QJF this two kinds. Four point contact ball bearings enjoy big load capability and high rotate speed. They can support the bidirectional load. They own the both character which single row enjoyed and double row enjoyed. Four points contact ball bearing is suitable to mill machines, spindle shaft for machine tools. And printing machines etc

 

china bearingsMore bearings…


Principal DimensionsBasic Load RatingsLimiting SpeedsWtBearing Number
dDBCrCorGreaseOil   
mmKNr/minkgNewOld
15022535195275200026005.3QJ1030176130
 270453054201500200012.5QJ230176230
 320654456401400190029QJ330176330
160239.538225320180024006.3QJ1032X1176732
 24038225320180024006.5QJ1032176132
 290483555151400190015.5QJ232176232
 340684907351400180034.5QJ332176332
170259.542260365170022008.5QJ1034X1176734
 26042260365170022008.6QJ1034176134
 310523605401400190019.5QJ234176234
 360725608701200160041.5QJ334176334
180279.5523054601500200010.8QJ1036X1176736
 280463054601500200011QJ1036176136
 320523956151400180020.5QJ236176236
 380755759201200160047.5QJ336176336
190289.5463054601500200011QJ1038X1176738
 290463054601500200011.5QJ1038176138
 340554407051200160024.5QJ238176238
200280512203401500200010.5QJ1940176940
 289.5582353851400190013.5QJ1040X1176740
 310513555601400190015QJ1040176140
 360584607651200160028.5QJ240176240
 360704707801200160032.5QJ1240-
220300602253651400190013QJ1944176944
 309.5602504151400180015QJ1044X1176744
 340564006751400180019.5QJ1044176144
 400655008851100140039.5QJ244176244
 400785359201100140045.5