Timken National 99210 Redi-Sleeve Shaft Repair Sleeve

Description:

The Timken National 99210 is a precision-engineered Redi-Sleeve® shaft repair sleeve, not an oil seal. It is designed to restore worn, grooved, or damaged shaft sealing surfaces without requiring shaft replacement or machining. Manufactured from high-quality stainless steel, the thin-wall sleeve installs directly over the existing shaft to provide a smooth, wear-resistant sealing surface for standard radial shaft oil seals. The National 99210 Redi-Sleeve® is commonly used in industrial gearboxes, pumps, compressors, electric motors, conveyors, agricultural machinery, and heavy-duty rotating equipment. Maintenance teams, OEMs, and system integrators rely on it for equipment repairs, retrofit projects, seal restoration, and preventive maintenance to reduce downtime and extend equipment service life.

Applications:

The Timken National 99210 Redi-Sleeve® is designed to repair worn shaft seal contact surfaces while allowing continued use of the original shaft and standard oil seal size. Its precision thin-wall stainless steel construction restores proper sealing performance with minimal change to shaft dimensions, making it ideal for industrial gearboxes, pumps, compressors, electric motors, wheel-end assemblies, conveyors, agricultural equipment, and other rotating machinery where shaft wear has caused lubricant leakage or premature seal failure.

Technical Specifications:

• Manufacturer Part Number (MPN): 99210
• Manufacturer: Timken National
• Product Type: Shaft Repair Sleeve (Redi-Sleeve®)
• Product Series: Redi-Sleeve® 99000 Series
• Material: Stainless Steel
• Design Units: Inch (Imperial)
• Shaft Size Range: 2.123–2.128 in (53.924–54.051 mm)
• Nominal Shaft Diameter: 2.125 in (53.99 mm)
• Flanged Outside Diameter: 2.422 in (61.519 mm)
• Width on Shaft (Seal Running Surface): 0.500 in (12.70 mm)
• Overall Width: 0.750 in (19.05 mm)
• Installation Depth: 1.281 in (32.537 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 approximately 2.125 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 99210
• National Redi-Sleeve 99210 Equivalent
• CR Shaft Repair Sleeve for 2.125 in Shaft Diameter