SKF TSNA 511 A Adapter Sleeve Assembly | 55mm Tapered Bore Mounting Kit | Industrial Grade

The SKF TSNA 511 A is a precision-engineered adapter sleeve assembly designed for securely mounting spherical roller bearings or self-aligning ball bearings (with a tapered bore) onto cylindrical shafts. This complete assembly includes the withdrawal sleeve, the corresponding lock nut (KM 11), and the appropriate locking washer (MB 11). The TSNA 511 A ensures high concentricity and requires no additional shaft machining or keyways, simplifying bearing installation, replacement, and inspection. Its design facilitates efficient and accurate axial positioning of the bearing, minimizing stress concentration and maximizing the operational life of the entire system. Built to SKF's rigorous industrial standards, the TSNA 511 A provides exceptional robustness suitable for high-vibration and heavy-load applications such as large industrial fans, conveyor systems, and process pumps. Utilizing genuine SKF mounting components guarantees a seamless fit with SKF bearings and plummer block housings (e.g., SNL 511 series), ensuring the integrity of your machinery. Investing in standardized SKF adapter sleeves reduces inventory complexity, accelerates maintenance times, and provides the reliability needed to maintain critical system uptime in challenging operational environments.

Key Features

• Complete Kit: Includes sleeve, lock nut (KM 11), and lock washer (MB 11) for immediate installation.
• Eliminates Shaft Modification: Allows tapered bore bearings to be mounted directly onto smooth, cylindrical shafts.
• Enhanced Reliability: Provides superior axial retention and concentricity for maximum bearing life.
• Easy Mounting and Dismounting: Facilitates quick installation and precise adjustment without specialized tools (beyond hook spanners).
• Corrosion Resistance: Phosphate-coated finish provides a degree of protection against rust and wear.

Technical Specifications