Timken 99139 Redi-Sleeve Shaft Repair Sleeve

Description:

The Timken National Redi-Sleeve 99139 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 99139 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 99139 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 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): 99139
• 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: 1.375–1.381 in (34.925–35.077 mm)
• Nominal Shaft Diameter: 1.378 in (35.00 mm)
• Flanged Outside Diameter: 1.638 in (41.605 mm)
• Width on Shaft (Seal Running Surface): 0.512 in (13.005 mm)
• Overall Width: 0.630 in (16.002 mm)
• Installation Depth: 0.812 in (20.625 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 1.378 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 99139
• National Redi-Sleeve 99139 Equivalent
• CR Shaft Repair Sleeve for 1.378 in Shaft Diameter