Flexible. Versatile. responsive.

KP Series /MKP Series

KP series and MKP series bearings are single row, heavy-duty airframe control bearings. These aerospace bearings are pre-lubricated.

Single Row Ball, Heavy Duty
Aircraft Control Bearing

  • Single row ball bearing
  • Manufactured to AS27640 per AS7949
  • All external surfaces except bore and stainless steel seal retainers are cadmium plated
  • Installed with PTFE seals
  • Pre-lubricated (see grease specifications)

MKP Series

  • Precision Series tolerances in light blue
  • When ordering precision parts be sure to add the “M” prefix to the standard part number
KP Series Schematic
Schematic of KP Series Bearing
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing Part Number
MS 27640-
Bored (in.)
Outside Diameter D (in.)
Inner Ring Width B (in.)
Outer Ring Width C (in.)
Inner Land Diameter d1
Inner Ring Chamfer c1
Outer Ring Chamfer c
Radial Limit Load Rating
Thrust Limit Load Rating
+.0000 -.0005
+.0000 -.0003
+.0000 -.0005
+.0000 -.0004
+.000 -.005
+.0000 -.0025
+.000 -.005
+.000 -.005
Approx.
+.015 -.000
+.015 -.000
(lbs.) †
(lbs.) †
KP3L
-3A
0.1900
0.6250
0.245
0.203
0.280
0.005
0.010
1560
700
KP3
-3
0.1900
0.7774
0.297
0.270
0.331
0.005
0.022
1880
900
KP4
-4
0.2500
0.9014
0.484
0.335
0.387
0.005
0.032
2680
1200
KP5
-5
0.3125
1.2500
0.558
0.375
0.469
0.015
0.032
5620
2500
KP6
-6
0.3750
1.4375
0.620
0.469
0.591
0.015
0.032
7910
3500
KP8
-8
0.5000
1.6875
0.620
0.500
0.752
0.015
0.044
11810
5200
KP10
-10
0.6250
1.9375
0.620
0.500
0.850
0.015
0.044
14100
6200
wdt_IDPart NumberMS 27460-Bore d (in.) +.0000 to -.0005 | +.0000 to -.0003Outside Diameter D (in.) +.0000 to -.0005 | +.0000 to -.0004Inner Ring Width B (in.) +.000 to -.005 | +.0000 to -.0025Outer Ring Width C (in.) +.000 to -.005 | +.000 to -.005Inner Land Diameter d1 (in.) Approx.Inner Ring Chamfer c1 (in.)Outer Ring Chamfer c (in.)Radial Load Limit Rating(lbs)Thrust Limit Load Rating (lbs)
1KP3L-3A0.19000.62500.2450.2030.2800.0050.0101560700
2KP3-30.19000.77740.2970.2700.3310.0050.0221880900
3KP4-40.25000.90140.4840.3350.3870.0050.03226801200
4KP5-50.31251.25000.5580.3750.4690.0150.03256202500
5KP6-60.37501.43750.6200.4690.5910.0150.03279103500
6KP8-80.50001.68750.6200.5000.7520.0150.044118105200
13KP10-100.62501.93750.6200.5000.8500.0150.044141006200
Part NumberMS 27460-Bore d (in.) +.0000 to -.0005 | +.0000 to -.0003Outside Diameter D (in.) +.0000 to -.0005 | +.0000 to -.0004Inner Ring Width B (in.) +.000 to -.005 | +.0000 to -.0025Outer Ring Width C (in.) +.000 to -.005 | +.000 to -.005Inner Land Diameter d1 (in.) Approx.Inner Ring Chamfer c1 (in.)Outer Ring Chamfer c (in.)Radial Load Limit Rating(lbs)Thrust Limit Load Rating (lbs)

† Refer to the Technical Info section for Bearing Life Calculations.

KP Series Notes

  1. Check with Schatz Bearing Corporation for current approval status.
  2. Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
  3. Check with Schatz Bearing Corporation’s Sales Department for price and availability.
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