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Bearing B545DD (AST)

Airframe Control Ball Bearings: Single and Double Row B545DD

Bearing number : B545DD

Brand : AST

Bore Diameter (mm) : 52,3875

Outer Diameter (mm) : 66,675

Bearing dimensions and specification in AST catalogue:

(dimensions in inches)

Bearing Type - BxxxDD

Bore Dia (d) - 2.0625

Outer Dia (D) - 2.6250

Outer Width (Bo) - 0.2500

Inner Width (Bi) - 0.2810

Dynamic Load Rating (Cr) - 2,260

Static Load Rating (Cor) - 9,220

Max. Shaft Shoulder Dia. Inner (Li) - 2.3

Ball Qty - 59

Ball Dia (Dw) - 0.1250

Max. shaft corner radius, or 45 deg. chamfer (ch1) - 0.015

Max. housing corner radius, or 45 deg. chamfer (ch) - 0.015

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 2340 pounds.

The static thrust load rating is 4000 pounds.

The bore diameter tolerance is +.0007 / -.0007".

The outside diameter tolerance is +.000" / -.001".

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