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Bearing KP56B (AST)

Airframe Control Ball Bearings: Single and Double Row KP56B

Bearing number : KP56B

Brand : AST

Bore Diameter (mm) : 88,9

Outer Diameter (mm) : 112,7125

Bearing dimensions and specification in AST catalogue:

(dimensions in inches)

Bearing Type - KPxxB

Bore Dia (d) - 3.5000

Outer Dia (D) - 4.4375

Outer Width (Bo) - 0.4690

Inner Width (Bi) - 0.5310

Dynamic Load Rating (Cr) - 7,970

Static Load Rating (Cor) - 31,200

Max. Shaft Shoulder Dia. Inner (Li) - 3.8

Ball Qty - 50

Ball Dia (Dw) - 0.2500

Max. shaft corner radius, or 45 deg. chamfer (ch1) - 0.039

Max. housing corner radius, or 45 deg. chamfer (ch) - 0.039

Material - 52100 Chrome steel or equivalent

The dynamic load rating given is for outer race rotation. The dynamic load rating for inner race rotation is 8240 pounds.

The static thrust load rating is 13700 pounds.

The bore diameter tolerance is +.0000 / -.0010".

The outside diameter tolerance is +.0000" / -.0010".

The tolerance for the inner race width and the outer race width is +.000" / -.005"

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.

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.

The bearing has two removable seals made of woven fabric Teflon.

Tags :  AST