DEMARK (Beijing) Automation Technology Co., Ltd.
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NA Series
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Bearing Designation
Shaft Diameter（mm）
Weight(Kg)
Boundary Dimensions(mm)
Basic Load Rating(N)
Limiting Speed(rpm)
Current Code
Original Code
d
Fw
D
C
B
Dynamic
Static
Oil
NA4922
4544922
110
2070
110
125
150
40
132000
290000
3700
NA4822
110
1080
110
120
140
30
94000
216000
3900
NA4924
4544924
120
2860
120
135
165
45
181000
890000
3400
NA4824
120
1170
120
130
150
30
99000
239000
3600
NA4926
4544926
130
3900
130
150
180
50
223000
470000
3100
NA4826
130
1810
130
145
165
35
118000
310000
3200
NA4928
4544928
140
4150
140
160
190
50
209000
500000
2900
NA4828
140
1920
140
155
175
35
120000
325000
3000
NA4830
150
2720
150
165
190
40
152000
400000
2800
NA4832
160
2890
160
175
200
40
160000
435000
2700
NA4834
170
3960
170
185
215
45
185000
510000
2500
NA4836
180
4200
180
195
225
45
194000
550000
2400
NA4838
190
5600
190
210
240
50
227000
690000
2300
NA4840
200
5840
200
220
250
50
230000
720000
2200
NA4844
220
6380
220
240
270
50
243000
790000
2000
NA4848
240
10000
240
265
300
60
355000
1080000
1800
NA4852
4524852
260
11300
260
285
320
60
37000
1160000
1700
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