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SCHATZ Airframe Control/Aerospace Bearings

KP-BS Series

kpbs

Single Row Radial
Aircraft Control Bearing

  • Manufactured to AS27648 per SAE AS7949
  • External self-aligning single row ball bearing
  • Installed with Teflon® seals
  • All external surfaces except bore and stainless steel seal retainers are cadmium plated
  • Pre-lubricated
  • Designed to compensate for initial misalignment, the KP-BS series is internally identical to the KP-B series on the previous page. Self-alignment is performed by an external self-aligning ring whose internal spherically-ground surface is accurately matched to the external spherically-ground surface of the outer ring.

MKP-BS Series

  • Precision Series tolerances in light blue
  • When ordering precision parts be sure to add the “M” prefix to the standard part number
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number
MS
27648-
Bore

d
(in.)

Outside Diameter
D

(in.)
Inner Ring Width
B

(in.)
Outer Ring Width
C

(in.)
Inner Land Diam.
d1
Inner Ring Chamfer
c1
Outer Ring Chamfer
c
Diam. to Sharp Corner
d2
Mis-
align-
ment
angle
(1)
Radial Limit Load Rating
+.0000
-.0010
+.0000
-.0005
+.0000
-.0010
+.0000
-.0010
+.000
-.005
+.0000
-.0025
+.000
-.005
+.000
-.005
Approx. +.015
-.000
+.015
-.000
Approx. (lbs.) † (lbs.) †
KP16BS -16* 1.0000** 1.9375 0.437 0.375 1.141 0.024 0.024 1.709 7º 25’ 8090
KP21BS -21* 1.3130 2.2500 0.437 0.375 1.454 0.024 0.024 2.028 6º 30’ 9840
KP23BS -23* 1.4380 2.3750 0.437 0.375 1.575 0.024 0.024 2.155 6º  10500
KP25BS -25* 1.5630 2.5000 0.437 0.375 1.693 0.024 0.024 2.282 5º 45’ 11300
KP29BS -29 1.8130 2.7500 0.437 0.375 1.931 0.024 0.024 2.535 5º  12700
KP33BS -33 2.0630 3.0000 0.437 0.375 2.231 0.024 0.024 2.787 5º  14400
KP37BS -37 2.3130 3.2500 0.437 0.375 2.468 0.024 0.024 3.039 4º 30’ 15800
KP47BS -47* 2.9380 4.1250 0.531 0.469 3.093 0.039 0.039 3.846 4º 30’ 24700
KP48BS -48* 3.0000 4.2500 0.531 0.469 3.222 0.039 0.039 3.972 4º  27500
KP49BS -49* 3.0625 4.2500 0.531 0.469 3.222 0.039 0.039 3.972 4º  27500

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

* Refer to QLP-AS7949 for current approval status.
** +.0000 inch/-.0005 inch.

Notes:

  1. KP-BS Series bearings are self-aligning in either direction.
  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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