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SKF Four-point contact ball bearings QJ234N2MA

SKF Four-point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio). The bearings are separable, i.e. the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves.

Both inner ring halves of SKF Explorer four-point contact ball bearings have a recessed shoulder. This improves oil flow when the bearing is used in combination with an SKF cylindrical roller bearing (fig. 1). In addition, these recesses can be used to facilitate dismounting.

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SKF Four-point contact ball bearings

Various part numbers in stock, welcome inquiry. Fast shipment within 2-3 working days.

Designation Principal dimensions Basic load ratings Speed ratings
dynamic static Limiting speed
d[mm] D[mm] B[mm] C[kN] C0[kN] [r/min]
 QJ230N2MA   150   270   45   400   570   4 000
 QJ232N2MA   160   290   48   450   670   3 800
 QJ234N2MA   170   310   52   455   720   3 400
 QJ236N2MA   180   320   52   475   765   3 400
 QJ238N2MA   190   340   55   510   850   3 200
 QJ240N2MA   200   360   58   540   915   3 000
 QJ248N2MA   240   440   72   650   1 200   2 400
 QJ304MA   20   52   15   32   21.6   24 000
 QJ305MA   25   62   17   42.5   30   20 000
 QJ306MA   30   72   19   53   41.5   17 000
 QJ307MA   35   80   21   64   51   15 000
 QJ308MA   40   90   23   78   64   14 000
 QJ309MA   45   100   25   100   83   12 000
 QJ309 PHAS   45   100   25   100   83   12 000
 QJ310MA   50   110   27   118   100   11 000
 QJ311MA   55   120   29   137   118   10 000
 QJ312MA   60   130   31   156   137   9 000
 QJ312 PHAS   60   130   31   156   137   9 000
 QJ313MA   65   140   33   176   156   8 500
 QJ314MA   70   150   35   200   180   8 000
 QJ314N2MA   70   150   35   200   180   8 000
 QJ315N2MA   75   160   37   216   200   7 500
 QJ316N2MA   80   170   39   232   228   7 000
 QJ317N2MA   85   180   41   250   255   6 700
 QJ318N2MA   90   190   43   285   305   6 300
 QJ319N2MA   95   200   45   305   340   6 000
 QJ319N2PHAS   95   200   45   305   340   6 000
 QJ320N2MA   100   215   47   345   400   5 600
 QJ322N2MA   110   240   50   390   480   4 800
 QJ324N2MA   120   260   55   415   530   4 500

WHCD Bearing Co.,Ltd is professional bearing supplier, engaged in bearing business with more than eighteen years, export to worldwide countries, as America, European, Middle-East, Southeast Asia …etc. with plenty long-term cooperation customers. WHCD Bearing company will provide professional and prompt solution for customers.Original Quality and Warranted, and Bearing experts team support customer service. Various bearing types for customer choose:  

Bearing Types:
Self-aligning ball bearing
Cylindrical roller bearing
Spherical roller bearing
Tapered roller bearing
Angular contact ball
Needle roller
Deep groove ball bearing
Axial deep groove ball
Pillow block bearing and units
LM/Linear Guide
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