With over 400 brake drums available in sizes ranging from 12.25 x 6.00 to 18.00 x 8.00, Webb offers the broadest brake drum line and has become the industry standard for quality wheel end quipment. Find a Webb cast brake drum for your application

Aug 31, 2024 · Brake drums for semi trucks come in various sizes, with the most common being 16.5 inches, 17.5 inches, and 18 inches in diameter. The size of the brake drum can significantly affect the braking performance.

Jul 19, 2023 · Brake Surface Diameter: The first measurement you need to take is the brake surface diameter. You can do this by determining the inner diameter of the drum, excluding the height of the drum flange. Use a measuring tape or brake drum gauge to measure across the inner surface of the drum.

Click on Drum Model Number (s) below for more information. To compare models, check box next to part number and click on any "compare" link. Use 66884B for heavy duty applications. For Girling Brakes. Will become obsolete when current inventory is depleted. Call for availability - if purchased, parts are non-returnable.

Jun 10, 2009 · If the Max diameter is stamped into the drum in a convenient place, and you can see through the gaps in the wheel, and one of those gaps is in a convenient place, then you would be able to read the max diameter off the drum without removing a wheel.

Brake Drum Identification The purpose of this bulletin is to help customers locate the dimensions needed to correctly identify a replacement brake drum. When specifying replacement brake drums, verify the part number being removed from the axle and ensure the correct part number interchange is used for the replacement brake drum.

Mar 21, 2023 · The more your brake drums are exactly the right size, the greater the braking performance you will get. What Is The Maximum Drum Diameter? The greatest permitted wear the drum may safely withstand before the metal becomes too thin is the discard semi truck brake drum wear limit of 0.090 inches.

Jul 13, 2023 · You will need a screwdriver, drum puller, and a micrometer to measure the brake drum precisely. After you have set everything, you have to follow our simple tutorial to measure brake drums correctly. Remove the bolts or retaining clips from the …

Alliance value drums are made in the U.S. and include a warranty, high quality standards and traceability. This process leads to maximum safety, higher performance and durability. GP Drive & Trailer 285PCD. Kenworth Steer Axle, Freightliner, Paccar and International.

Jul 27, 2024 · In summary, truck brake drum dimensions are a critical aspect of vehicle safety and performance. Understanding the various size parameters—diameter, width, bolt pattern, height, depth, and material thickness—can help in making …