ACE NEEDLE ROLLER BEARINGS WITH FLANGES WITH INNER RING
ACE BEARING
DESIGNATION
BOUNDARY DIMENSION
BASIC LOAD RATING
LIMITING SPEED
MASS

KG
d
mm
D
mm
B
mm
DYNAMIC
C
N
STATIC
Co
N
GREASE
LUBRICATION
RPM
OIL
LUBRICANT
RPM
NA 4900
10
22
13
8800
10400
17000
26000
0.023
NA 4901
12
24
13
9900
12200
16000
24000
0.026
NA 4902
15
28
13
11200
15300
13000
19000
0.034
NA 4904
20
37
17
21600
28000
9500
15000
0.075
NA 4905
25
42
17
24200
34500
8500

13000

0.088
NA 4906
30
47
17
25500
39000
7500
11000

0.10

NA 4907
35
55
20
31900
54000
6700
9500
0.17
NA 4908
40
62
22
42900
71000
5600
8000
0.23
NA 4909
45
68
22
45700
78000
5300
7500
0.27
NA 4910
50
72
22
47300
85000
5000
7000
0.27
NA 4911
55
80
25
57200
10600
4500
6300
0.40
NA 4912
60
85
25
60500
114000
4300
6000
0.43
NA 4913
65
90
25
61600
120000
4000
5600
0.46
NA 4914
70
100
30
84200
163000
3600
5000
0.73
NA 4915
75
105
30
84200
170000
3400
4800
0.78
NA 4916
80
110
30
88000
183000
3200
4500
0.88
NA 4917
85
120
35
108000
250000
2800
4000
1.25
NA 4918
90
125
35
112000
265000
2600
3800
1.30
NA 4919
95
130
35
114000
270000
2400
3600
1.40
NA 4920
100
140
40
125000
280000
2200
3400
1.90
NA 4922
110
150
40
130000
300000
2000
3200
2.10

Sr
No.

Bearing Number

Boundary Dimensions (in m.m.) Mass
(~) Kg.
d D T
1 WA2025 25 35 30 0.080
2 NW-264026 26 40 26 0.098
3 NW-253530 30 42 30 0.108
4 253524 25 35 24 0.062
5 B-80012 58.57 66.57 30 0.108
6 BB-80005 63 71 38.5 0.155
7 BB-80006 62 68 42 0.125
8 234026 23 40 26 0.132
9 234126 23 41 26 0.145
10 244026 24 40 26 0.127
11 244126 24 41 26 0.135
12 NW-7050 28 48 24 0.158
13 284424 28 44 24 0.118
14 424727 42 47 27 0.044
15 505530 50 55 30 0.060