The Timken Company 99243 Shaft Repair Sleeve Redi-Sleeve

Description:

The Timken National Redi-Sleeve 99243 is a precision-engineered stainless steel shaft repair sleeve designed to restore worn, grooved, or damaged shaft sealing surfaces without requiring shaft replacement or machining. Installed over the existing shaft, it creates a smooth, hardened, and corrosion-resistant sealing surface that extends the service life of standard radial shaft oil seals while reducing equipment downtime and maintenance costs. The 99243 Redi-Sleeve is widely used in industrial gearboxes, pumps, compressors, electric motors, conveyors, agricultural machinery, and heavy-duty rotating equipment. Maintenance teams, OEMs, and system integrators rely on this shaft repair sleeve for equipment repairs, retrofit projects, seal restoration, and preventive maintenance.

Applications:

The Timken National Redi-Sleeve 99243 is designed to repair worn shaft seal contact areas and restore proper sealing performance while allowing continued use of the original seal size. Its precision thin-wall stainless steel construction provides a durable sealing surface with minimal impact on 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 resulted in lubricant leakage or premature seal failure.

Technical Specifications:

• Manufacturer Part Number (MPN): 99243
• Manufacturer: Timken National
• Product Type: Shaft Repair Sleeve (Redi-Sleeve®)
• Product Series: 99000 Series
• Material: Stainless Steel
• Design Units: Inch (Imperial)
• Shaft Size Range: 2.434–2.440 in (61.824–61.976 mm)
• Nominal Shaft Diameter: 2.437 in (61.90 mm)
• Flanged Outside Diameter: 2.828 in (71.831 mm)
• Width on Shaft (Seal Running Surface): 0.781 in (19.84 mm)
• Overall Width: 0.938 in (23.825 mm)
• Installation Depth: 1.375 in (34.93 mm)
• Construction: Precision Thin-Wall Stainless Steel Sleeve with Installation Flange
• Surface Finish: 10–20 microinch Ra (0.25–0.50 μm Ra), lead-free ground finish
• Function: Restores worn shaft sealing surfaces without shaft replacement or machining
• Compatible Components: Standard radial shaft oil seals for 2.437 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 99243
• National Redi-Sleeve 99243 Equivalent
• CR Shaft Repair Sleeve for 2.437 in Shaft Diameter