Flexible. Versatile. responsive.
INDUSTRY

Airframe Control Bearings

mil spec bearings | airframe bearings | airframe control bearings

Made in USA Airframe Control Bearings

Schatz Bearing Corporation of Poughkeepsie, New York manufactures airframe control bearings for flight control systems, drive systems, stabilizers, flaps, slats, and spoilers.These Made in USA aircraft bearings combine precision manufacturing with axial and radial positioning and oscillatory motion.Airframe control bearings from Schatz are designed for high loads and made of corrosion-resistant materials. They include both single-row and double-row designs and can be sealed for environmental resistance.Airframe bearings and long lead times don’t mix, so partner with Schatz and see why we have won numerous Boeing Performance Excellence Awards.
A collection of aircraft ball bearings shown on edge

Airframe control bearing Features

  • Supplied with MIL-PRF-81322 or MIL-PRF-23827 approved greases, or other lubricants.
  • Zinc Nickel (AMS2417) or Cadmium plated (QQ-P-416E) to resist corrosion, including galvanic corrosion.
  • Made of AISI 52100 steel, AISI 440C corrosion resistant stainless steel, 440C modified, M50, or CREN stainless steel with superior resistance to corrosion and fatigue.
  • Available in higher precision levels and with lower starting torques.
  • Angular contact bearings can be mounted as single bearings or in pairs (as a duplex set) for increased axial capacity and rigidity.

Feature Comparison and Cross-Reference Chart

Bearing SeriesRowsSelf-AligningDuty TypeFeaturesMilitary SpecBoeing Spec
AW-AK SeriesSingle mediumdeep groove, CRESMS27649 
B500, MB500 SeriesSingle extra lighttorque tube, unsealed  
B500DD SeriesSingle extra lighttorque tube, sealedMS27646BACB10CF
MB500DD SeriesSingle extra lighttorque tube, sealedMS21428BACB10AS
B500EE SeriesSingle extra lighttorque tube, proprietary seal  
B5500WZZ SeriesDouble extra lighttorque tube  
DPP, MDPP SeriesDouble heavyDF/face to faceMS27644BACB10CB
DPP-W, MDPP-W SeriesDouble heavyDB/back to back, rigid type  
DSP, MDSP SeriesDoubleXheavy MS27643BACB10CA
DW, GDW SeriesDouble mediumextra wideMS27647BACB10CG
FL SeriesSingle  Fairlead BACP30
K SeriesSingle  track roller BACB10A45
,BACB10A48
,BACB10A50
,BACB10A329
,BACB10A338
,BACB10A339
,BACB10A464
KP, MKP SeriesSingle heavy MS27640BACB10BY
KP-A, MKP-A SeriesSingle medium MS27641BACB10BX
KP-B, MKP-B SeriesSingle light MS27642BACB10BW
KP-BS, MKP-BS SeriesSingleXextra lightexternal self aligningMS27648BACB10EX
KSP, KSP-A, MKSP, MKSP-A SeriesSingleXlight and heavy MS27645BACB10AR
P SeriesBoth heavypulley BACB10BG
VKP seriesSingle heavyswageable  

Types of airframe Control Bearings

There are several different types of airframe control bearings. Examples include:

  • Single-row or double-row deep groove bearings and misaligning bearings
  • Thin section bearings
  • Spherical plain bearing
  • Plain rod ends (rose joins)
  • Plain bushings (journals)

Replacing Precision Bearings

During the life of an aircraft, precision bearings that are used frequently may be replaced several times. Typically, these airframe control bearings are used with:

  • Control linkages
  • Actuation devices
  • Undercarriage components
  • Hydraulic links
  • Door mechanisms
  • Engine controls