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MS27646 B500DD Series0 pages
AIRFRAME CONTROL BALL BEARINGS —
B500DD SERIES EXTRA LIGHT TORQUE TUBE
MS27646 • SAE-AS7949
• Extra light duty
• Single row, ball
• PTFE seals
• Exposed surfaces except bore and seals are
cadmium plated
• Prelubricated for life
• This series is dimensionally interchangeable
with the unsealed B500 series
• Also offered with CRES 440C material and/or zinc
nickel plating per OEM specifications
H
AIRFRAME CONTROL
BALL BEARINGS
C x 45°
E
B
D
W
SPECIFICATIONS AND ORDERING INFORMATION
TO ORDER, SPECIFY BEARING NUMBER AND FACTORY SPECIFICATION. SEE TABLE 1 ON PG 8. (Example B538DD FS464)
Bore
B
Outside
Diameter
D
W
H
+0.0007, -0.0007
+0.018, -0.018
Bearing
Number
+0.0000, -0.0010
+0.000, -0.025
+0.000, -0.005
+0.00, -0.13
+0.000, -0.005
+0.00, -0.13
MS
27646
Dash
No.
Widths
E
C
Approx.
Wt.
+0.015-0.000
+0.38, -0.00
Radial
Limit
Load
Rating
Thrust
Limit
Load
Rating
Approx.
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kg
lbf.
N
lbf.
N
B538DD
-38
0.6250
15.875
1.0625
26.988
0.281
7.14
0.250
6.35
0.781
19.84
0.015
0.38
0.03
0.014
3280
14600
1500
6700
B539DD
-39
0.7500
19.050
1.1875
30.163
0.281
7.14
0.250
6.35
0.898
22.81
0.015
0.38
0.04
0.018
3750
16700
1700
7600
B540DD
-40
0.8750
22.225
1.3125
33.338
0.281
7.14
0.250
6.35
1.019
25.88
0.015
0.38
0.05
0.023
4220
18800
1900
8500
B541DD
-41
1.0625
26.988
1.5000
38.100
0.281
7.14
0.250
6.35
1.219
30.96
0.015
0.38
0.06
0.027
5000
22300
2200
9800
B542DD
-42
1.3125
33.338
1.7500
44.450
0.281
7.14
0.250
6.35
1.454
36.93
0.015
0.38
0.09
0.041
5950
26500
2700
12000
B543DD
-43
1.5625
39.688
2.0000
50.800
0.281
7.14
0.250
6.35
1.706
43.33
0.015
0.38
0.10
0.045
6880
30600
3200
14300
B544DD
-44
1.8125(1)
46.038(1)
2.2500(2)
57.150(2)
0.281
7.14
0.250
6.35
1.974
50.14
0.015
0.38
0.11
0.050
7980
35500
3600
16000
B545DD
-45
2.0625(1)
52.388(1)
2.6250(2)
66.675(2)
0.281
7.14
0.250
6.35
2.291
58.19
0.015
0.38
0.15
0.068
9220
41000
4000
17800
B546DD
-46
2.3125(1)
58.738(1)
2.8750(2)
73.025(2)
0.281
7.14
0.250
6.35
2.531
64.29
0.015
0.38
0.17
0.077
10150
45200
4400
19600
(1)
+0.0010 in. (+0.025mm), -0.0010 in. (-0.025mm).
(2)
+0.0000 in. (+0.000mm), -0.0015 in. (-0.038mm).
©2008 RBC Bearings Incorporated. All rights reserved.
34
For more information visit our web site at rbcbearings.com
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