This PTFE bushing serves as a low-friction bearing surface in the reel assembly of a combine header. It supports the reel tine arm or bat as it rotates, reducing wear between the moving metal components. A worn bushing allows play in the reel arm, leading to uneven crop feeding and increased vibration in the header. The manufacturer machines this bushing to the original clearance specification, which maintains the correct fit in the reel support bracket without requiring shimming. On installation, ensure the bushing is fully seated in its bore and lubricated before assembly.