Aircraft Bearing

ISO 9001:2008 REGISTERED

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Control Bearings

MKP-B Precision Series
Radial Torque Tube Type
MS27642-S • MIL-B-7949



Bearing
Number
MS
27641
Dash No.
Bore
Outside Diameter
Widths
d
D
B
C
+0.0000,-.0005
+0.000,-.013
+0.0000,-.0010
+0.000,-.025
+0.0000,-0.0025
+0.000,-.064
+0.000,-.005
+0.00,-.13
 
in.
mm
in.
mm
in.
mm
in.
mm
MKP16B
-16S
1.0000
25.400
1.7500 (1)
44.450 (1)
0.437
1.10
0.375
9.52
MKP21B
-21S
1.3125
33.338
2.0625
52.388
0.437
1.10
0.375
9.52
MKP23B
-23S
1.4375
36.512
2.1875
55.562
0.437
1.10
0.375
9.52
MKP25B
-25S
1.5625
39.688
2.3125
58.738
0.437
1.10
0.375
9.52
MKP29B
-29S
1.8125
46.038
2.5625
65.088
0.437
1.10
0.375
9.52
MKP33B
-33S
2.0625
52.388
2.8125
71.438
0.437
1.10
0.375
9.52
MKP37B
-37S
2.3125
58.738
3.0625
77.788
0.437
1.10
0.375
9.52
MKP47B
-47S
2.9375
74.612
3.8750
98.425
0.531
3.49
0.469
11.91
MKP49B
-49S
3.0625
77.788
4.0000
101.600
0.531
3.49
0.469
11.91


Bearing
Number
d 1
r 1
r
Wt.
Radial
Limit 
Load
Rating
Thrust
Limit 
Load
Rating
Approx.
+0.015,-.000
+0.38,-.00
+0.015,-.000
+0.38,-.00
Approx.
in.
mm
in.
mm
in.
mm
lbs.
kg
lbs.
N
lbs.
N
MKP16B
1.184
30.07
0.024
0.61
0.024
0.61
0.14
0.064
8090
36000
3600
16000
MKP21B
1.478
37.54
0.024
0.61
0.024
0.61
0.16
0.073
9840
43000
4400
19600
MKP23B
1.605
40.77
0.024
0.61
0.024
0.61
0.17
0.077
10500
46500
4700
20800
MKP25B
1.720
43.69
0.024
0.61
0.024
0.61
0.19
0.086
11300
50000
5000
22400
MKP29B
1.960
49.78
0.024
0.61
0.024
0.61
0.21
0.095
12700
56000
5600
25000
MKP33B
2.262
57.45
0.024
0.61
0.024
0.61
0.23
0.104
14400
64000
6400
28500
MKP37B
2.500
63.50
0.024
0.61
0.024
0.61
0.26
0.118
15800
71000
7000
31000
MKP47B
3.120
79.25
0.039
0.99
0.039
0.99
0.49
0.222
24700
100000
10900
48000
MKP49B
3.255
82.68
0.039
0.99
0.039
0.99
0.53
0.240
27500
122000
12100
54000



  • + Single row, ball.
  • + Equipped with Teflon seals.
  • + Prelubricated.
  • + Exposed surfaces except bore, cap, and seals are cadmium plated.

(1) +.0000" (+.000mm), -.0005" (-.013mm).

Note: These bearings should not be used as track rollers, cam follower rolls, and the like.

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.

 

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.

 

Affiliated with

Ceramic BearingImpact Bearing, and Thinsection Bearing

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.