Die Set Plain Linear Bearing - Aluminum PACZ125 1.25"Die set plain linear bearing with a 1. 25 ID (inner diameter), a precision running clearance of 0. 0005 per side and a closed aluminum shell. Features a round flange and self lubricating FrelonGOLD liner as standard, which provides optimal performance in extreme conditions such as dirt, heat and vibration. An optional FrelonJ liner is available for harsh chemical environments and FrelonW is offered as an FDA compliant liner option. Closed Round