Aerospace: Airframe Control Bearings
Aerospace Bearings » Airframe Control

B538 Bearing Airframe Control | Torque Tube

Part No.
B538
Governing Specs
SAE AS7949

Specifications

Approx. Weight Dimensional Diagram
Duty
Extra Light Duty
Bore Inner Diameter
.6250 +.0000/-.0005
Outer Diameter
1.0625 +.0000/-.0005
Inner Ring Width
.2810 +.000/-.005
Outer Ring Width
.2500 +.000/-.005
Inner Ring Shoulder Diameter
.7810 Approx.
Outer Ring Chamfer x 45°
.0150 +.015/-.000
Inner Ring Chamfer x 45°
.0150 +.015/-.000
No. Balls
21
Ball Size
1/8 "
Static Radial Limit Load Rating
3280 lbs.
Static Thrust Limit Load Rating
1500 lbs.
Approx. Weight
0.020 lbs.

Interchange

National Precision Bearing Part No B538 is an interchangable replacement for these common bearing part numbers:

NHBB
B538
RBC Aircraft
B538 FS464
Schatz
B538

Dimensions and Values provided are for reference only. A full specification can be obtained at the Society of Automotive Engineering website.