Brand: FAFNIR
FAFNIR LS 103 BK Sealed Deep Groove Ball Bearing (17x40x12mm) – High Contamination Resistance, C3 Clearance
The FAFNIR LS 103 BK is engineered as a robust, maintenance-free deep groove ball bearing optimized for harsh industrial environments where contamination exclusion is critical. Built from high-grade 52100 chrome steel and featuring a robust LS-style low-friction single lip seal, this bearing delivers superior performance longevity in moderate-to-high speed applications. The C3 internal clearance accommodates typical industrial thermal expansion and slight shaft misalignment, ensuring consistent running accuracy and mitigating premature failure associated with preload. With a dynamic load rating exceeding 9.5 kN, the LS 103 BK provides the necessary capacity margin for electric motors, gearboxes, and critical pumping systems.
Selecting the FAFNIR LS 103 BK drastically reduces Total Cost of Ownership (TCO) by extending relubrication intervals and minimizing unplanned downtime. The integrated sealing solution maintains factory-applied fill-for-life grease while effectively blocking ingress of dust, moisture, and abrasive particles common in manufacturing and aggregate industries. This reliability makes the LS 103 BK the preferred choice for purchasing engineers seeking a high-precision replacement part that meets or exceeds OEM specifications, guaranteeing reliable operation across high duty cycles and demanding operational temperatures. Standardizing on FAFNIR quality ensures system integrity and maximized Mean Time Between Failure (MTBF).
Key Features
Integrated LS Single-Lip Seal ensures maximum lubricant retention and superior contamination exclusion.
C3 internal clearance designed for high-heat industrial applications, preventing binding due to thermal expansion.
Precision raceway geometry minimizes friction and heat generation, maximizing energy efficiency.
High Basic Dynamic Load Rating (Cr 9.56 kN) provides exceptional durability under vibrational and heavy radial loads.
Manufactured from FAFNIR's specialized high-purity steel for extended fatigue life and corrosion resistance.
