Needle roller bearings
A type of cylindrical bearings with thin rollers called needles.
Available with baskets (for significant loads) or the following bearing assemblies:
- radial only with the inner ring
- radial bush one-side closed without the inner ring
- radial bush without the inner ring
- combination of a radial needle bearing and an axial ball bearing
Needle ball bearings with a reduced outer diameter are used to sustain significant radial loads. Application: planet wheels (e.g. planetary gears, leverages)."
Vervo Sp. o.o. having regard to the continuous improvement of products reserves the right to change data without notice. Technical data and pictures may differ from the actual and are for information purposes only.
Select a subtype
type NA
Comprise a cage-and-needle roller assembly. The outer and inner rings and are characterized by high load carrying capacity and thin cross section.
Specification
type | GOST | dimensions (mm) | weight (kg) | load rating (N) | |||||
---|---|---|---|---|---|---|---|---|---|
d | D | B | Fw | rsmin | dyn. | stat. | |||
NA 4900 | 4074900 | 10 | 22 | 13 | 14 | 0,3 | 0,023 | 8800 | 10400 |
NA 4901 | 4074901 | 12 | 24 | 13 | 16 | 0,3 | 0,026 | 9900 | 12200 |
NA 4902 | 4074902 | 15 | 28 | 13 | 20 | 0,3 | 0,034 | 11200 | 15300 |
NA 4903 | 4074903 | 17 | 30 | 13 | 22 | 0,3 | 0,037 | 11400 | 16300 |
NA 4904 | 4074904 | 20 | 37 | 17 | 25 | 0,3 | 0,075 | 21600 | 28000 |
NA 4905 | 4074905 | 25 | 42 | 17 | 30 | 0,3 | 0,088 | 24200 | 34500 |
NA 4906 | 4074906 | 30 | 47 | 17 | 35 | 0,3 | 0,1 | 25500 | 39000 |
NA 4907 | 4074907 | 35 | 55 | 20 | 42 | 0,6 | 0,17 | 31900 | 54000 |
NA 4908 | 4074908 | 40 | 62 | 22 | 48 | 0,6 | 0,23 | 42900 | 71000 |
NA 4909 | 4074909 | 45 | 68 | 22 | 52 | 0,6 | 0,27 | 45700 | 78000 |
NA 4910 | 4074910 | 50 | 72 | 22 | 58 | 0,6 | 0,28 | 47300 | 85000 |
NA 4911 | 4074911 | 55 | 80 | 25 | 63 | 1 | 0,4 | 57200 | 106000 |
NA 4912 | 4074912 | 60 | 85 | 25 | 68 | 1 | 0,43 | 60500 | 114000 |
NA 4913 | 4074913 | 65 | 90 | 25 | 72 | 1 | 0,46 | 61600 | 120000 |
NA 4914 | 4074914 | 70 | 100 | 30 | 80 | 1 | 0,73 | 84200 | 163000 |
NA 4915 | 4074915 | 75 | 105 | 30 | 85 | 1 | 0,78 | 84200 | 170000 |
NA 4916 | 4074916 | 80 | 110 | 30 | 90 | 1 | 0,88 | 88000 | 183000 |
NA 4917 | 4074917 | 85 | 120 | 35 | 100 | 1,1 | 1,25 | 108000 | 250000 |
NA 4918 | 4074918 | 90 | 125 | 35 | 105 | 1,1 | 1,3 | 112000 | 265000 |
NA 4919 | 4074919 | 95 | 130 | 35 | 110 | 1,1 | 1,4 | 114000 | 270000 |
NA 4920 | 4074920 | 100 | 140 | 40 | 115 | 1,1 | 1,9 | 125000 | 280000 |
NA 4922 | 4074922 | 110 | 150 | 40 | 125 | 1,1 | 2,1 | 130000 | 300000 |
NA 4924 | 4074924 | 120 | 165 | 45 | 135 | 1,1 | 2,85 | 176000 | 405000 |
NA 4926 | 4074926 | 130 | 180 | 50 | 150 | 1,5 | 3,9 | 198000 | 480000 |
NA 4928 | 4074928 | 140 | 190 | 50 | 160 | 1,5 | 4,15 | 205000 | 510000 |
 |  |  |  |  |  |  |  |  |  |
NA 6901 | Â | 12 | 24 | 22 | 16 | 0,3 | 0,046 | 16100 | 23200 |
NA 6902 | Â | 15 | 28 | 23 | 20 | 0,3 | 0,064 | 17200 | 27000 |
NA 6903 | Â | 17 | 30 | 23 | 22 | 0,3 | 0,072 | 18700 | 30500 |
NA 6904 | Â | 20 | 37 | 30 | 25 | 0,3 | 0,14 | 35200 | 53000 |
NA 6905 | Â | 25 | 42 | 30 | 30 | 0,3 | 0,16 | 38000 | 62000 |
NA 6906 | Â | 30 | 47 | 30 | 35 | 0,3 | 0,19 | 42900 | 75000 |
NA 6907 | Â | 35 | 55 | 36 | 42 | 0,6 | 0,31 | 48400 | 93000 |
NA 6908 | Â | 40 | 62 | 40 | 48 | 0,6 | 0,43 | 67100 | 125000 |
NA 6909 | Â | 40 | 68 | 40 | 52 | 0,6 | 0,5 | 70400 | 137000 |
NA 6910 | Â | 50 | 72 | 40 | 58 | 0,6 | 0,52 | 73700 | 150000 |
NA 6911 | Â | 55 | 80 | 45 | 63 | 1 | 0,78 | 89700 | 190000 |
NA 6912 | Â | 60 | 85 | 45 | 68 | 1 | 0,81 | 93500 | 204000 |
NA 6913 | Â | 65 | 90 | 45 | 72 | 1 | 0,83 | 95200 | 212000 |
NA 6914 | Â | 70 | 100 | 54 | 80 | 1 | 1,35 | 128000 | 285000 |
NA 6915 | Â | 75 | 105 | 54 | 85 | 1 | 1,45 | 130000 | 290000 |
NA 6916 | Â | 80 | 110 | 54 | 90 | 1 | 1,5 | 134000 | 315000 |
NA 6917 | Â | 85 | 120 | 63 | 100 | 1,1 | 2,2 | 165000 | 425000 |
NA 6918 | Â | 90 | 125 | 63 | 105 | 1,1 | 2,3 | 172000 | 450000 |
NA 6919 | Â | 95 | 130 | 63 | 110 | 1,1 | 2,5 | 172000 | 465000 |
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