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

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

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

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