The Sleeve is typically a cylindrical part with a hollow interior. It features a precisely machined outer surface and a smooth inner bore. These features can include splines, grooves, teeth, or other specific geometrical configurations.Attributes:• Ensures proper fit and smooth operation• Hardened to indentation depth of 0.5-0.8mm minimum which provides high strength• Manufactured to precise specifications and are built for durability and reliabilityApplications:The Sleeve is used in the Fan of the Hydraulic Oil Cooler mounting to the other components and tightened by using a fastener-like bolt to provide structural support.