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SKF Needle Roller  NA4904RS

SKF needle roller bearings with machined rings are made of carbon chromium bearing steel. SKF supplies these bearings with or without flanges on the outer ring, in a wide range of series and sizes. SKF also supplies them with or without an inner ring.

Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two non-separable closure rings that act as flanges to guide the bearing axially.

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Single row Needle roller bearings with machined rings, with flanges, with an inner ring.

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

Designation Principal dimensions Basic load ratings Speed ratings
dynamic static Reference speed Limiting speed
d[mm] D[mm] B[mm] C[mm] C[kN] C0[kN] [r/min] [r/min]
  NA4902.2RS   15   28   14   13   9.13   12   9 500
  NA4903   17   30   13   11.4   16.3   18 000   20 000
  NA4903RS   17   30   14   13   9.52   12.9   9 000
  NA4903.2RS   17   30   14   13   9.52   12.9   9 000
  NA4904   20   37   17   21.6   28   15 000   17 000
  NA4904RS   20   37   18   17   19.4   22.4   7 500
  NA4904.2RS   20   37   18   17   19.4   22.4   7 500
  NA4905   25   42   17   24.6   34.5   13 000   15 000
  NA4905RS   25   42   18   17   21.6   27.5   6 300
  NA4905.2RS   25   42   18   17   21.6   27.5   6 300
  NA4906   30   47   17   26   39   11 000   13 000
  NA4906RS   30   47   18   17   23.3   32   5 600
  NA4906.2RS   30   47   18   17   23.3   32   5 600
  NA4907   35   55   20   31.9   54   9 500   11 000
  NA4907RS   35   55   21   20   27   43   4 800
  NA4907.2RS   35   55   21   20   27   43   4 800
  NA4908   40   62   22   42.9   71   8 000   9 500
  NA4908RS   40   62   23   22   36.9   58.5   4 000
  NA4908.2RS   40   62   23   22   36.9   58.5   4 000
  NA4909   45   68   22   45.7   78   7 500   8 500
  NA4909RS   45   68   22   22   39.1   64   3 800
  NA4909.2RS   45   68   23   22   39.1   64   3 800
  NA4910   50   72   22   47.3   85   7 000   8 000
  NA4910RS   50   72   23   22   40.2   69.5   3 400
  NA4910.2RS   50   72   23   22   40.2   69.5   3 400
  NA4911   55   80   25   57.2   106   6 300   7 000
  NA4912   60   85   25   60.5   114   6 000   6 700
  NA4913   65   90   25   61.6   120   5 600   6 300
  NA4914   70   100   30   84.2   163   5 000   5 600
  NA4915   75   105   30   84.2   170   4 800   5 300

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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