Aircraft Bearing

ISO 9001:2008 REGISTERED

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800-962-4180

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Control Bearings

B500 Series
Extra Light Torque Tube Type
MS27643 / MIL-B-7949




Bearing
Number
Bore
Outside Diameter
Widths
d
D
B
C
+0.0007,-.0007
+0.018,-.018
+0.0000,-.0010
+0.000,-.025
+0.000,-0.005
+0.00,-.13
+0.000,-.005
+0.00,-.13
in.
mm
in.
mm
in.
mm
in.
mm
B538
0.6250
15.875
1.0625
26.988
0.281
7.14
0.25
6.35
B539
0.7500
19.050
1.1875
30.162
0.281
7.14
0.25
6.35
B540
0.8750
22.225
1.3125
33.338
0.281
7.14
0.25
6.35
B541
1.0625
26.988
1.5000
38.100
0.281
7.14
0.25
6.35
B542
1.3125
33.338
1.7500
44.450
0.281
7.14
0.25
6.35
B543
1.5625
39.688
2.0000
50.800
0.281
7.14
0.25
6.35
B544
1.8125 (1)
46.038 (1)
2.2500 (2)
57.150 (2)
0.281
7.14
0.25
6.35
B545
2.0625 (1)
52.388 (1)
2.6250 (2)
66.675 (2)
0.281
7.14
0.25
6.35
B546
2.3125 (1)
58.738 (1)
2.8750 (2)
73.025 (2)
0.281
7.14
0.25
6.35

Bearing
Number
d 1
r 1 (3)
r (3)
Wt.
Radial
Limit
Load 
Rating
Thrust
Limit
Load 
Rating
Approx.
Approx.
in.
mm
in.
mm
in.
mm
lbs.
kg
lbs.
N
lbs.
N
B538
0.777
19.74
0.015
0.38
0.015
0.38
0.02
0.009
3280
14600
1500
6700
B539
0.895
22.73
0.015
0.38
0.015
0.38
0.03
0.014
3750
16600
1700
7500
B540
1.016
25.81
0.015
0.38
0.015
0.38
0.04
0.018
4220
18600
1900
8500
B541
1.216
30.89
0.015
0.38
0.015
0.38
0.05
0.023
5000
22400
2200
9800
B542
1.451
36.86
0.015
0.38
0.015
0.38
0.07
0.032
5950
26500
2700
12000
B543
1.702
43.23
0.015
0.38
0.015
0.38
0.08
0.036
6880
30500
3200
14300
B544
1.970
50.04
0.015
0.38
0.015
0.38
0.09
0.041
7980
35500
3600
16000
B545
2.286
58.06
0.015
0.38
0.015
0.38
0.13
0.059
9220
41500
4000
17600
B546
2.527
64.19
0.015
0.38
0.015
0.38
0.15
0.068
10150
45500
4400
19600


  • + Extra light duty.
    + Single row, ball.
    + This series is made of bearing quality chromium-alloy, high carbon steeland is not cadmium plated.
    + Open type - no seals or shields.
    + Prepacked with a preseruative.

Standard series CONTROL BEARINGS category

aerospace bearings

Ball Bearings

We can help design/manufacture any bearing. We stock other manufacturers: Barden, Fafrir, MPB, SKF, Kaydon, FAG, ND, KOYO, NSK, RMB, KBC, SMT, GMN, etc.

Cylindrical Roller Bearings

Cylindrical roller bearings for aerospace applications are capable of handling high radial loads and a wide range of application speeds.

Tapered Roller Bearings

Tapered roller bearings can withstand high accelerations and de-accelerations, heavy loads and a variety of temperature and environmental conditions.

Spherical Roller Bearings

Spherical roller bearings are the preferred choice when operating conditions include heavy loads and difficulties with housing alignment or shaft deflection.

Resources

  • our mission

    Our engineers are the best in the industry. We work directly with our OEMs and Bearing Distributors. Our engineers can help you with bearing, shaft and housing tolerances as well as semiconductor applications, cryogenic applications, extreme hostile environments, and extreme delta T temperatures environments.

  • Core Values

    We have one of the largest bearing inventories in the U.S. We stock other manufacturer's bearings. We distribute bearings for extreme high temperature. We will ship all bearing orders the same day for less than any other advertised price.

  • Certifications

    AS9100C and ISO 9001:2008 Certified -Aircraft Bearings enforces a rigorous quality control program to insure that each bearing shipped is made to the highest quality standard. Our goal is to meet and exceed application requirements and customer demands.

CAPABILITIES

We carry

Aircraft Bearing is one of the largest stocking distributors in the world of bearings and bushings for Aerospace applications. Our inventory and experience providing solutions to elite aerospace manufacturers is second to none. Aircraft Bearing stocks bearings for airframe control, hydraulic actuation, pump, APU, electrical actuation, guidance, avionics, engine mount, bleed-air valve, defense system, UAV, and assembly applications.

In addition to bearings, Aircraft Bearing also stocks a range of bearing installation, swaging, and proof load testing tools approved for aerospace applications.

who we are

We are uniquely positioned to provide OEM's and Distributors a full range of engineered solutions in addition to stocking thousands of bearing and bearing related products to cost-efficiently and consistently provide just-in-time delivery.

 

Our quality is ranked #1 by bearing distributors and OEM's. Our Physical Vapor Deposited Coatings (PVD), Ceramic Balls and Moly/PTFE retainers give you the longest lasting best performing bearings in the industry.

OVERNIGHT DELIVERY.

 

Allow us the opportunity to use our expertise to solve your toughest bearing applications. Please consider us first for your bearing needs as well as all custom bearing requirements.