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KP49B airframe control ball bearings drawing
  1. The dynamic load rating given is for outer race rotation. The dynamic load rating for inner race rotation is 8150 pounds.
  2. The static thrust load rating is 12100 pounds.
  3. The bore diameter tolerance is +.0000 / -.0010".
  4. The outside diameter tolerance is +.0000" / -.0010".
  5. The tolerance for the inner race width and the outer race width is +.000" / -.005"
  6. The load ratings listed for these bearings are determined by the formulas used specifically for airframe bearings. These ratings are not equivalent to ratings calculated from the ABMA formulas used for most antifriction bearing products.
  7. This bearing is intended for commercial applications. You must notify the AST sales department contact at the time of your inquiry if the bearing will be used in an airworthy application.
  8. The bearing has two removable seals made of woven fabric Teflon.

KP49B Airframe Control Ball Bearing

Model: KP49B

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Product Details

Specifications
Bearing Type KPxxB
Bore Dia (d) 3.0630 in
Outer Dia (D) 4.0000 in
Ball Qty 44
Ball Dia (Dw) 0.2500 in
Outer Width (Bo) 0.4690 in
Inner Width (Bi) 0.5310 in
Dynamic Load Rating (Cr) 7,840 lbs
Static Load Rating (Cor) 27,500 lbs
Max. Shaft Shoulder Dia. Inner (Li) 3.2 in
Max. shaft corner radius, or 45 deg. chamfer (ch1) 0.039 in
Max. housing corner radius, or 45 deg. chamfer (ch) 0.039 in
Material 52100 Chrome steel or equivalent

All information in this catalog has been thoroughly checked for accuracy. However, the catalog data should not be relied upon entirely for design and development purposes. AST Bearings assumes no liability for possible errors or omissions. All dimensions and specifications are subject to change without notice. Contact AST Bearings for the most current catalog data as it applies to you and for your application.