Control Bearings
MKP-BS Precision Series
Self-Aligning
Torque Tube Type
MS27642-S • MIL-B-7949

  • Single row, ball, externally self-aligning.
  • Equipped with Teflon seals.
  • Exposed surfaces except bore, cap, and seals are cadmium plated.
  • Prelubricated.
  • This series is internally identical to the MKP-B series. Self-alignmentis provided by an external self-aligning ring whose internal spherical-ground surface is accurately matched to the external spherical-ground surface of the outer ring. These bearings are designed tocompensate for initial misalignment.
D Series
Bearing
Number
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
MKP16BS
1.0000
25.400
1.9375
49.212
0.437
11.10
0.375
9.52
MKP21BS
1.3125
33.338
2.2500
57.150
0.437
11.10
0.375
9.52
*MKP23BS
1.4375
36.612
2.3750
60.325
0.437
11.10
0.375
9.52
MKP25BS
1.5625
39.688
2.5000
63.500
0.437
11.10
0.375
9.52
MKP29BS
1.8125
46.038
2.7500
69.850
0.437
11.10
0.375
9.52
*MKP33BS
2.0625
52.388
3.0000
76.200
0.437
11.10
0.375
9.52
*MKP37BS
2.3125
58.738
3.2500
82.550
0.437
11.10
0.375
9.52
*MKP47BS
2.9375
74.612
4.1250
104.775
0.531
13.49
0.469
11.91
MKP48BS
3.0000
76.200
4.2500
107.950
0.531
13.49
0.469
11.91
MKP49BS
3.0625
77.788
4.2500
107.950
0.531
13.49
0.469
11.91

Bearing
Number
d 1
r 1
r
D 1
Ø
Wt.
Radial
Limit Load
Rating
Thrust
Limit Load
Rating
Approx.
+0.015,-.000
+0.38,-.00
+0.015,-.000
+0.38,-.00
To
Sharp
Corner
(ref.)
Mis-
alignment
Either
Direction
Approx.
in.
mm
in.
mm
in.
mm
in.
mm
lbs.
kg
lbs.
N
lbs.
N
MKP16BS
1.184
30.07
0.024
0.61
0.024
0.61
1.709
43.41
7°25'
0.18
0.082
8090
36000
1600
7100
MKP21BS
1.478
37.54
0.024
0.61
0.024
0.61
2.028
51.51
6°30'
0.20
0.091
9840
43000
2000
9000
*MKP23BS
1.605
40.77
0.024
0.61
0.024
0.61
2.155
54.74
6°
0.22
0.100
10500
46500
2200
9800
MKP25BS
1.720
43.69
0.024
0.61
0.024
0.61
2.282
57.96
5°45'
0.25
0.113
11300
50000
2300
10200
MKP29BS
1.960
49.78
0.024
0.61
0.024
0.61
2.535
64.39
5°
0.27
0.122
12700
56000
2600
11600
*MKP33BS
2.262
57.45
0.024
0.61
0.024
0.61
2.787
70.79
5°
0.30
0.136
14400
64000
2900
12900
*MKP37BS
2.500
63.50
0.024
0.61
0.024
0.61
3.039
77.19
4°30'
0.33
0.150
15800
71000
3200
14300
*MKP47BS
3.120
79.25
0.039
0.99
0.039
0.99
3.846
97.69
4°30'
0.64
0.290
24700
100000
5000
22400
MKP48BS
3.255
82.68
0.039
0.99
0.039
0.99
3.972
100.89
4°
0.69
0.313
27500
122000
5500
24500
MKP49BS
3.255
82.68
0.039
0.99
0.039
0.99
3.972
100.89
4°
0.69
0.313
27500
122000
5500
24500

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

* Check for availability
 

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1291 Puerta Del Sol,, San Clemente, CA 92673