Description

Grumman Parts is proud to offer FAA-PMA approved Timken wheel bearings designed specifically for Goodyear, Cleveland, and McCauley wheels.

These Class 2 aviation-grade bearings, designated with a -20629 suffix by Timken, boast tighter tolerances and higher quality control than Class 4 automotive bearings.

Why choose FAA-PMA Class 2 bearings over automotive alternatives?

Aircraft wheels, with their smaller diameter, rotate at significantly higher RPMs compared to car tires. For instance, at a 70 mph touchdown speed (equivalent to a car’s highway speed), a typical 17-inch airplane tire rotates at 1384 RPM, while a 27-inch car tire rotates at only 871 RPM. This stark difference in rotation speed demands the superior precision and durability of FAA-PMA Class 2 bearings to prevent premature failure.

Using non-approved automotive bearings in aircraft applications is not only ill-advised but also a violation of FAA regulations. Ensure the safety and reliability of your aircraft by choosing FAA-PMA Class 2 Timken wheel bearings from Grumman Parts.