The Timken Company 99172 Redi-Sleeve Shaft Repair Sleeve

Description:

The Timken National Redi-Sleeve 99172 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 99172 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 99172 is designed to repair worn shaft seal contact surfaces and restore dependable sealing performance 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 effect 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 caused lubricant leakage or premature seal failure.

Technical Specifications:

• Manufacturer Part Number (MPN): 99172
• 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: 1.747–1.753 in (44.37–44.53 mm)
• Nominal Shaft Diameter: 1.750 in (44.45 mm)
• Flanged Outside Diameter: 2.055 in (52.20 mm)
• Width on Shaft (Seal Running Surface): 0.375 in (9.53 mm)
• Overall Width: 0.500 in (12.70 mm)
• Installation Depth: 0.813 in (20.65 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 1.750 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 99172
• National Redi-Sleeve 99172 Equivalent
• CR Shaft Repair Sleeve for 1.750 in Shaft Diameter