JIS Plain Linear Bearing - FJ80 80mm Closed Precision IDClosed self lubricating plain linear bearing with a 80mm JIS Metric inner diameter, featuring a precision running clearance of 0. 0005" per side. This bearing incorporates a self lubricating liner made from FrelonGOLD, which provides excellent wear resistance, vibration dampening and reduced friction, ensuring smooth operation without the need for additional lubrication. The anodized aluminum bearing shell enhances durability while maintaining a