Double Die Set Plain Linear Bearing - Steel Shell DDSZ20 1.25" Round Flange CenterDouble die set plain linear bearing, steel shelled, with a 1. 25 ID (inner diameter) and a precision running clearance of 0. 0005 per side. Features a round flange and self lubricating FrelonGOLD liner as standard, which provides optimal performance in extreme conditions such as dirt, heat and vibration. This large steel shelled model is ideal for heavy die sets, stamping presses, punch tooling, and other high load industrial applications. Double