A Tapered Roller Bearing is like a heavy-duty wheel bearing for machines. It has cone-shaped rollers between inner and outer rings, so it handles pushes from the side and pushes from the front at the same time. Made of hardened steel, we press it into place and adjust the fit. If it gets dry or dirty, it starts to squeak. We pack it with grease, keep the seals tight, and swap it out if it wears. No squeaks, just smooth turns.