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Bearing B539DD (AST)

Airframe Control Ball Bearings: Single and Double Row B539DD

Bearing number : B539DD

Brand : AST

Bore Diameter (mm) : 19,05

Outer Diameter (mm) : 30,1625

Bearing dimensions and specification in AST catalogue:

(dimensions in inches)

Bearing Type - BxxxDD

Bore Dia (d) - 0.7500

Outer Dia (D) - 1.1875

Outer Width (Bo) - 0.2500

Inner Width (Bi) - 0.2810

Dynamic Load Rating (Cr) - 1,900

Static Load Rating (Cor) - 3,750

Max. Shaft Shoulder Dia. Inner (Li) - 0.9

Ball Qty - 24

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 2050 pounds.

The static thrust load rating is 1700 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