LIST, PARTS

552 108 40 LIST, PARTS is typically found supporting a shaft or a pivot point in a heavy-duty assembly, like a feed cylinder mount or a boom joint on your rig. Its main job is to provide a smooth, low-friction surface, letting components move freely without metal-on-metal grinding. It also helps keep everything aligned, making sure things don't shift or bind up under the constant loads these machines handle.

When this bushing starts to wear out, you'll definitely notice some slop or play in the joint it's supposed to be supporting. A dead giveaway is often a distinct clunking noise, especially when the rig is articulating, or the feed system is pushing hard. If it's really gone, you might even see a slight misalignment or uneven wear on other, more expensive components because the shaft isn't being held true anymore. That extra movement isn't just annoying; it accelerates wear on everything else nearby.

Replacing one isn't usually a massive undertaking, but getting the old, seized one out can sometimes be a real fight. Always make sure the bore it sits in is absolutely clean and free of any burrs before you press the new one in. And here’s a common one I’ve seen guys forget: always give it a good shot of grease or lubrication right after installation, assuming it's a greasable type. Skipping that initial shot can seriously shorten its lifespan from day one.