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SCHATZ Airframe Control/Aerospace Bearings

P Series

p-full

Pulley Type
Aircraft Control Bearing

  • Manufactured to AS21443 per SAE AS7949 for MIL-P-7034 pulleys
  • All external surfaces except bore and stainless steel seal retainers are cadmium plated
  • Installed with PTFE seals
  • Pre-lubricated (see grease specifications)
  • Retainer type

(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number
MS
27443-
Bore
Outside Diameter
Inner Ring Width
Outer Ring Width
Inner Land Diameter
d1
Inner Ring Chamfer
c1
Outer Ring Chamfer
c
Radial Limit Load Rating
Thrust Limit Load Rating
+.0000
-.0005
+.0000
-.0005
+.000
-.005
+.000
-.005
Approx.
+.015
-.000
+.015
-.000
(lbs.) †
(lbs.) †
KP3K
-3B
0.1900
0.7774
0.297
0.270
0.332
0.005
0.024
1090
600
KP3AK
-3A
0.1900
0.6250
0.297
0.234
0.297
0.005
0.016
705
385
KP3AK-2
0.1900
0.6250
0.625
0.234
0.297
0.005
0.016
705
385
W4AK
-4A
0.2500
0.7500
0.438
0.312
0.372
0.005
0.016
1090
600
KP4K
-4C
0.2500
0.9014
0.484
0.335
0.390
0.005
0.034
1710
800
P4K
-4B
0.2500
0.8750
0.438
0.375
0.423
0.005
0.022
1710
800
P5K
-5A
0.3125
0.8750
0.625
0.375
0.455
0.005
0.022
1710
800
PD5K
-5B
0.3125
0.9375
0.625
0.563
0.455
0.005
0.022
3420
1030
P8*
-8
0.5000
1.6875
0.750
0.563
0.768
0.005
0.032
11800
5200
P10K
-10
0.6250
1.1875
0.438
0.375
0.769
0.005
0.022
2440
1100
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number		 MS
27443-		 Bore Outside Diameter Inner Ring Width Outer Ring Width Inner Land Diameter
d1		 Inner Ring Chamfer
c1		 Outer Ring Chamfer
c		 Radial Limit Load Rating Thrust Limit Load Rating
+.0000
-.0005		 +.0000
-.0005		 +.000
-.005		 +.000
-.005		 Approx. +.015
-.000		 +.015
-.000		 (lbs.) † (lbs.) †
KP3K -3B 0.1900 0.7774 0.297 0.270 0.332 0.005 0.024 1090 600
KP3AK -3A 0.1900 0.6250 0.297 0.234 0.297 0.005 0.016 705 385
KP3AK-2 0.1900 0.6250 0.625 0.234 0.297 0.005 0.016 705 385
W4AK -4A 0.2500 0.7500 0.438 0.312 0.372 0.005 0.016 1090 600
KP4K -4C 0.2500 0.9014 0.484 0.335 0.390 0.005 0.034 1710 800
P4K -4B 0.2500 0.8750 0.438 0.375 0.423 0.005 0.022 1710 800
P5K -5A 0.3125 0.8750 0.625 0.375 0.455 0.005 0.022 1710 800
PD5K -5B 0.3125 0.9375 0.625 0.563 0.455 0.005 0.022 3420 1030
P8* -8 0.5000 1.6875 0.750 0.563 0.768 0.005 0.032 11800 5200
P10K -10 0.6250 1.1875 0.438 0.375 0.769 0.005 0.022 2440 1100

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

* Full type – no retainer.

Notes:

  1. Designed for use in pulleys, the P Series bearings work well in other airframe applications. Do not use bearings as track rollers, cam follower rolls or for similar applications.
  2. Check with Schatz Bearing Corporation for current approval status.
  3. Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
  4. Check with Schatz Bearing Corporation’s Sales Department for price and availability.

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