Timken National 99248 Redi Sleeve Shaft Repair Sleeve

Description:

The Timken National 99248 is a Redi-Sleeve® shaft repair sleeve, not an oil seal. It is a precision-engineered stainless steel wear sleeve designed to restore worn, grooved, or damaged shaft sealing surfaces without requiring shaft replacement or machining. The ultra-thin sleeve is installed over the existing shaft to provide a smooth, corrosion-resistant sealing surface for standard radial shaft oil seals, extending seal life while minimizing equipment downtime and maintenance costs. The National 99248 is widely used in industrial gearboxes, pumps, electric motors, compressors, conveyors, agricultural machinery, and heavy-duty rotating equipment. Maintenance teams, OEMs, and system integrators rely on this Redi-Sleeve® for equipment repairs, retrofit projects, and preventive maintenance.

Applications:

The Timken National 99248 Redi-Sleeve® is designed to restore worn shaft seal contact surfaces and eliminate oil leakage caused by shaft wear. Its precision stainless steel construction allows continued use of the original seal size while providing a hardened sealing surface. It is commonly installed on industrial gearboxes, pumps, compressors, electric motors, conveyors, wheel-end assemblies, agricultural equipment, and other rotating machinery where shaft wear has reduced sealing performance.

Technical Specifications:

• Manufacturer Part Number (MPN): 99248
• Manufacturer: Timken National
• Product Type: Shaft Repair Sleeve (Redi-Sleeve®)
• Product Series: 99000 Series
• Material: Stainless Steel
• Design Units: Inch (Imperial)
• Shaft Size Range: 2.500–2.506 in (63.50–63.65 mm)
• Width on Shaft: 0.500 in (12.70 mm)
• Overall Width: 0.656 in (16.66 mm)
• Outside Diameter: 2.828 in (71.83 mm)
• Installation Depth: 1.375 in (34.93 mm)
• Construction: Precision Thin-Wall Stainless Steel Sleeve with Installation Flange
• Function: Restores worn shaft sealing surfaces without shaft replacement or machining
• Compatible Components: Standard radial shaft oil seals for 2.500 in shaft diameters
• Typical Applications: Pumps, gearboxes, compressors, electric motors, conveyors, agricultural equipment, wheel hubs, and industrial power transmission systems.

Common Replacements:

• SKF Speedi-Sleeve 99248
• National Redi-Sleeve 99248 Equivalent
• CR Shaft Repair Sleeve for 2.500 in Shaft Diameter