Aptel TULEJKA 7618-40-12 — mechanical bushing / sleeve

Aptel TULEJKA 7618-40-12 — mechanical bushing / sleeve is a precision-fit metallic sleeve designed to provide axial and radial guidance, reduce wear between moving parts and simplify assembly alignment. Supplied as a single part, this bushing is intended for applications where a specific internal and external diameter and defined length are required to restore clearances, provide bearing surfaces or protect housing bores from direct wear.

Advantages

The sleeve offers accurate dimensional tolerances for repeatable fit and consistent performance, helping to restore or maintain correct shaft clearance. Its smooth bearing surface reduces friction and wear on mating components. Being a single, ready-to-install part, it simplifies repair and replacement procedures and reduces downtime in maintenance operations.

Suitable for

• Repair and replacement of worn housings and bores in mechanical assemblies
• Axial and radial alignment of shafts and pins
• Industrial machinery and equipment maintenance
• Automotive repair where a matched sleeve diameter and length are required
• New installations requiring a precision bearing surface

Key specifications

• Form: cylindrical bushing / sleeve
• Intended function: axial/radial guidance and wear protection
• Configuration: single, precision-fit part
• Material characteristics: metallic bearing surface suitable for sliding contact (confirm specific alloy before use)
• Typical applications: mechanical, automotive and industrial assemblies

How to use

Select a sleeve with matching internal and external diameters and the correct length for the housing and shaft. Prepare the bore by cleaning and deburring to ensure a uniform seating surface. Press or gently tap the sleeve into the housing until it is fully seated and aligned; use a suitable arbor or installation tool to avoid distorting the sleeve. After installation, verify shaft fit and clearance and apply appropriate lubrication if the application requires sliding contact.

Usage recommendations

Confirm material compatibility and dimensional fit before installation. Use proper pressing tools to avoid deformation and inspect mating parts for wear that could accelerate sleeve degradation. Replace the sleeve if excessive wear or damage is observed.