The SF1 Composite Copper Sleeve Oil Selflubricating Bearing is designed for reliable, low maintenance support of rotating shafts in compact machinery. It uses a copperbased composite sleeve that delivers selflubrication and reduces the need for grease or oil during operation. Key benefits Oil and selflubricating operation minimizes maintenance and reduces the risk of oil contamination in clean environments. Copperbased composite material offers wear resistance and good load sharing for long service life. Wide inner diameter options provide flexible compatibility with different shaft sizes (38, 40, 45, 50, 55 mm). Compact bushing size for tight assemblies: 38x42x40 mm per piece. Easy replacement component for suitable shafts, enabling simple upgrades from oillubricated or worn bushings. Stable performance in light to moderate load applications with low friction and smooth rotation. Key attributes Brand/model: SF1 Composite Copper Sleeve Bearing Type: Oil selflubricating bearing bushing Material: Composite copper sleeve Lubrication: Oil, selflubricating Inner diameter options: 38 mm, 40 mm, 45 mm, 50 mm, 55 mm Overall size (per piece): 38x42x40 mm Packaging: 1 piece per package Applications: Suitable for rotating shafts in small or compact assemblies requiring low maintenance and oil operation What makes it useful Reliable in environments where oil or grease cannot be used due to cleanliness, contamination risk, or leakage concerns. Reduces downtime by eliminating regular lubrication intervals while maintaining smooth shaft motion. Allows upgrading or replacing worn bushings in existing equipment without major changes to the housing or shaft. Use cases Use case 1: Replacing worn bushings in a small packaging line conveyor or similar automation equipment where oil operation is preferred for cleanliness. Use case 2: Incorporating into a compact robotics joint or actuator to provide reliable shaft support with minimal maintenance. Use case 3: Implementing in DIY or smallscale machinery projects that require a simple, lowfriction bearing option with known inner diameter sizing (38, 40, 45, 50, 55 mm) and a compact format. Installation and compatibility notes Verify shaft diameter matches the chosen inner diameter (38, 40, 45, 50, or 55 mm) for a proper fit. Ensure the shaft and bore are clean and of burrs before pressing the bushing into place. Align the bushing correctly to prevent misalignment and uneven wear. Do not exceed recommended load conditions; use within the intended lighttomoderate load range to maximize service life. While oil, periodic inspection is advised to confirm integrity and prevent contaminants from entering the bearing surface. This product description reflects the SF1 model and its specifications, including the oil selflubricating copper sleeve bearing design, available inner diameters, and the 38x42x40 mm bushing size per piece. It provides clear indications of functionality, compatibility, size, material, and performance, along with practical use cases.