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SCHATZ AIRFRAME CONTROL / AEROSPACE BEARINGS

B500DD/MB500DD Series

b500dd

Extra Light Torque Tube Type
Aircraft Control Bearing

  • Manufactured to AS27646 per AS7949
  • Extra light duty
  • Single row ball bearing
  • Teflon® coated fiberglass seals
  • All external surfaces except bore and seals are cadmium plated
  • Pre-lubricated (see grease specifications)
  • This series is dimensionally interchangeable with the unshielded B500 series

MB500DD Series

  • Precision Series tolerances in light blue
  • Manufactured to AS21428 per SAE AS7949
  • 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
27646-
Bore

d
(in.)

Outside Diameter
D

(in.)
Inner Ring Width
B

(in.)
Outer Ring Width
C

(in.)
Inner Land Diameter
Inner Ring Chamfer
Outer Ring Chamfer
Radial Limit Load Rating
Thrust Limit Load Rating
+.0007
-.0007
+.0000
-.0005
+.0000
-.0010
+.0000
-.0005
+.000
-.005
+.0000
-.0025
+.000
-.005
+.000
-.005
d1
(in.)
c1*
(in.)
c*
(in.)
(lbs.) †
(lbs.) †
B538DD
-38
0.6250
1.0625
0.281
0.250
0.777
0.015
0.015
3280
1500
B539DD
-39
0.7500
1.1875
0.281
0.250
0.895
0.015
0.015
3750
1700
B540DD
-40
0.8750
1.3125
0.281
0.250
1.016
0.015
0.015
4220
1900
B541DD
-41
1.0625
1.5000
0.281
0.250
1.216
0.015
0.015
5000
2200
B542DD
-42
1.3125
1.7500
0.281
0.250
1.451
0.015
0.015
5950
2700
B543DD
-43
1.5625
2.0000
0.281
0.250
1.702
0.015
0.015
6880
3200
B544DD
-44
1.8125**
2.2500***
0.281
0.250
1.970
0.015
0.015
7980
3600
B545DD
-45
2.0625**
2.6250***
0.281
0.250
2.286
0.015
0.015
9220
4000
B546DD
-46
2.3125**
2.8750***
0.281
0.250
2.527
0.015
0.015
10150
4400
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number
MS
27646-
Bore

d
(in.)

Outside Diameter
D

(in.)
Inner Ring Width
B

(in.)
Outer Ring Width
C

(in.)
Inner Land Diameter Inner Ring Chamfer Outer Ring Chamfer Radial Limit Load Rating Thrust Limit Load Rating
+.0007
-.0007
+.0000
-.0005
+.0000
-.0010
+.0000
-.0005
+.000
-.005
+.0000
-.0025
+.000
-.005
+.000
-.005
d1
(in.)
c1*
(in.)
c*
(in.)
(lbs.) † (lbs.) †
B538DD -38 0.6250 1.0625 0.281 0.250 0.777 0.015 0.015 3280 1500
B539DD -39 0.7500 1.1875 0.281 0.250 0.895 0.015 0.015 3750 1700
B540DD -40 0.8750 1.3125 0.281 0.250 1.016 0.015 0.015 4220 1900
B541DD -41 1.0625 1.5000 0.281 0.250 1.216 0.015 0.015 5000 2200
B542DD -42 1.3125 1.7500 0.281 0.250 1.451 0.015 0.015 5950 2700
B543DD -43 1.5625 2.0000 0.281 0.250 1.702 0.015 0.015 6880 3200
B544DD -44 1.8125** 2.2500*** 0.281 0.250 1.970 0.015 0.015 7980 3600
B545DD -45 2.0625** 2.6250*** 0.281 0.250 2.286 0.015 0.015 9220 4000
B546DD -46 2.3125** 2.8750*** 0.281 0.250 2.527 0.015 0.015 10150 4400

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

* Maximum shaft or housing fillet which bearing corner will clear.
** +.0010 inch/-.0010 inch  +.0000 inch/-.0008 inch
*** +.0000 inch/-.0015 inch  +.0000 inch/-.0007 inch

Notes:

  1. 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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