High Speed Ball Screw Support Bearing Angular Contact Ball Bearings Qj 307 Four Point Contact Ball Bearing Qj 307 Ma Qj 307 N2phas

Min.Order: 100
Product origin: Tianjin, China
Infringement complaint: complaintComplaint
US$ 2 ~ 5

Description

Four point contact ball bearing is a separate bearing, which can also be said to be a set of angular contact ball bearings that can bear two-way axial load. The inner and outer raceways are peach shaped sections. When there is no load or pure radial load, the steel ball and ferrule show four-point contact, which is also the origin of this name. When there is only pure axial load, the steel ball and ferrule become two-point contact and can bear two-way axial load. Four point contact ball bearing can also bear moment load, and has the functions of single row angular contact ball bearing and double row angular contact ball bearing. The four point contact ball bearing can work normally only when two-point contact is formed. Therefore, it is generally applicable to those occasions where there is two-point contact under pure axial load or synthetic load with large axial load. The four-point contact ball bearing has high limit speed and is also suitable for those occasions with high-speed operation.
DesignationSizedynamicstaticLimiting speed
d[mm]D[mm]B[mm]C[kN]C0[kN][r/min]
  QJ 202 N2MA  15  35  11  12.7  8.3  36 000
  QJ 203 N2MA  17  40  12  17  11.4  30 000
  QJ 303 N2MA  17  47  14  23.4  15  28 000
  QJ 304 MA  20  52  15  32  21.6  24 000
  QJ 304 N2MA  20  52  15  32  21.6  24 000
  QJ 304 N2PHAS  20  52  15  32  21.6  24 000
  QJ 205 MA  25  52  15  27  21.2  22 000
  QJ 305 MA  25  62  17  42.5  30  20 000
  QJ 305 N2MA  25  62  17  42.5  30  20 000
  QJ 206 MA  30  62  16  37.5  30.5  19 000
  QJ 206 N2MA  30  62  16  37.5  30.5  19 000
  QJ 306 MA  30  72  19  53  41.5  17 000
  QJ 306 N2MA  30  72  19  53  41.5  17 000
  QJ 306 N2PHAS  30  72  19  53  41.5  17 000
  QJ 207 N2MA  35  72  17  49  41.5  17 000
  QJ 307 MA  35  80  21  64  51  15 000
  QJ 307 N2MA  35  80  21  64  51  15 000
  QJ 307 N2PHAS  35  80  21  64  51  15 000
  QJ 208 MA  40  80  18  56  49  15 000
  QJ 208 N2MA  40  80  18  56  49  15 000
  QJ 208 PHAS  40  80  18  56  49  15 000
  QJ 308 MA  40  90  23  78  64  14 000
  QJ 308 N2PHAS  40  90  23  78  64  14 000
  QJ 209 MA  45  85  19  63  56  14 000
  QJ 309 MA  45  100  25  100  83  12 000
  QJ 309 N2MA  45  100  25  100  83  12 000
  QJ 309 N2PHAS  45  100  25  100  83  12 000
  QJ 309 PHAS  45  100  25  100  83  12 000
  QJ 210 MA  50  90  20  65.5  61  13 000
  QJ 310 MA  50  110  27  118  100  11 000



About us
TIANJIN REET BEARING.CO.,LTD is a professional bearing manufacturer and exporter.
We have a wealth of technical.All producing processes are finished in our manufactory. As an ISO9001:2000 certified manufacturer,we will solve various problems in application and use of our bearings. 
Our company is an authorized distributor of FAG, INA, TIMKEN and other world brand bearings.Our company has the right to self-export bearings and launches its own brand RTB.
Our bearing had been exported to more than twenty countries worldwide and are warmly welcomed.
We're looking forward to your order.
FAQ

1.Is the company a production factory or a trading company?
TIANJIN REET BEARING CO.,LTD is a manufacturing enterprise focusing on bearings and integrating research, production and sales.

2.How many the MOQ of your company?
Depending on the size of the bearing, the MOQ is variable, if you are interested, you can contact me for a quote.

3.Does the company accept OEM or customized bearings?
In addition to standard products, we also supply non-standard and modified standard products for special application. Meanwhile, we provide OEM service.

4.Can the company provide free samples?
We can provide samples for free. You only need to provide shipping.

5.What are the company's delivery terms?
We can accept EXW,FOB,CFR,CIF,etc. You can choose the one which is the most convenient cost effective for you.



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