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
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing Part Number
MS 27640-
Bore d (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_ID Part Number MS 27460- Bore d (in.) +.0000 to -.0005 | +.0000 to -.0003 Outside Diameter D (in.) +.0000 to -.0005 | +.0000 to -.0004 Inner Ring Width B (in.) +.000 to -.005 | +.0000 to -.0025 Outer Ring Width C (in.) +.000 to -.005 | +.000 to -.005 Inner 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)
1 KP3L -3A 0.1900 0.6250 0.245 0.203 0.280 0.005 0.010 1560 700
2 KP3 -3 0.1900 0.7774 0.297 0.270 0.331 0.005 0.022 1880 900
3 KP4 -4 0.2500 0.9014 0.484 0.335 0.387 0.005 0.032 2680 1200
4 KP5 -5 0.3125 1.2500 0.558 0.375 0.469 0.015 0.032 5620 2500
5 KP6 -6 0.3750 1.4375 0.620 0.469 0.591 0.015 0.032 7910 3500
6 KP8 -8 0.5000 1.6875 0.620 0.500 0.752 0.015 0.044 11810 5200
13 KP10 -10 0.6250 1.9375 0.620 0.500 0.850 0.015 0.044 14100 6200
Part Number MS 27460- Bore d (in.) +.0000 to -.0005 | +.0000 to -.0003 Outside Diameter D (in.) +.0000 to -.0005 | +.0000 to -.0004 Inner Ring Width B (in.) +.000 to -.005 | +.0000 to -.0025 Outer Ring Width C (in.) +.000 to -.005 | +.000 to -.005 Inner 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.
kp