Check the listing for details. 20Pcs Sleeve Bearings, 8x12x12mm Self-Lubricating Sintered Iron Bushings. Condition: New. Listed at 17.50 USD. Description:Durable Construction: The sleeve bearings are made of sintered iron and can withstand a wide temperature range. Their porous structure provides excellent frictional properties and durability, effectively reducing friction and ensuring stability under high loads and low speeds.Self-Lubricating Function: As self-lubricating sliding bearings, they effectively reduce vibration and wear between moving parts, making maintenance more convenient and efficient. Oil-free sealing bushings provide a reinforced support structure for shafts or fasteners, enhancing stability and support force.Easy to Use: These oil-free bushings feature a standard press-in installation method, making installation simple. First, select the appropriate bushing size based on the shaft diameter and housing bore diameter.