Timken 99274 Shaft Repair Sleeve Stainless Steel

Description:

The Timken National Redi-Sleeve 99274 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 directly over the existing shaft, it provides a smooth, wear-resistant, and corrosion-resistant sealing surface for standard radial shaft oil seals, extending seal life while reducing maintenance costs and equipment downtime. The 99274 Redi-Sleeve is widely used in industrial gearboxes, pumps, compressors, electric motors, conveyors, mining equipment, and other heavy-duty rotating machinery. Maintenance teams, OEMs, and system integrators rely on this shaft repair sleeve for repair, retrofit, replacement, expansion, and preventive maintenance to restore sealing performance and maximize equipment reliability.

Applications:

The Timken National Redi-Sleeve 99274 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 provides a hardened sealing surface with minimal impact on shaft dimensions, making it ideal for industrial gearboxes, pumps, compressors, electric motors, wheel-end assemblies, conveyors, agricultural machinery, mining equipment, and other rotating equipment where shaft wear has caused lubricant leakage or premature seal failure.

Technical Specifications:

• Manufacturer Part Number (MPN): 99274
• 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: 2.745–2.751 in (69.723–69.875 mm)
• Nominal Shaft Diameter: 2.750 in (69.85 mm)
• Flanged Outside Diameter: 3.125 in (79.375 mm)
• Width on Shaft (Seal Running Surface): 0.781 in (19.84 mm)
• Overall Width: 0.938 in (23.825 mm)
• Installation Depth: 1.250 in (31.75 mm)
• Construction: Precision Thin-Wall Stainless Steel Sleeve with Installation Flange
• Surface Finish: Precision Ground, 10–20 µin Ra (0.25–0.50 µm Ra), Lead-Free
• Function: Restores worn shaft sealing surfaces without shaft replacement or machining
• Compatible Components: Standard radial shaft oil seals for approximately 2.750 in shaft diameters
• Typical Applications: Pumps, gearboxes, compressors, electric motors, conveyors, mining equipment, agricultural machinery, wheel hubs, and industrial power transmission systems.

Common Replacements:

• SKF Speedi-Sleeve 99274
• National Redi-Sleeve 99274 Equivalent
• CR Shaft Repair Sleeve for 2.750 in Shaft Diameter