HSS71913-E-T-P4S-UL

The HSS71913-E-T-P4S-UL stands as a pinnacle of FAG's super-precision engineering, specifically tailored for demanding spindle applications where thermal stability and extreme rotational speeds are non-negotiable. Featuring a 65mm bore and 90mm outer diameter, this single-row angular contact ball bearing utilizes small-sized steel balls to significantly reduce centrifugal force and internal friction during operation. The "E" designation confirms a 25° contact angle, providing an optimal balance between axial and radial load capacity. Designed with a non-contact lip seal on both sides, it ensures long-term grease retention and protection against contaminants without compromising the bearing's high-speed threshold of 18,000 rpm under grease lubrication.
What sets the HSS71913-E-T-P4S-UL apart is its P4S tolerance class, which exceeds standard P4 (ABEC-7) precision to deliver superior running accuracy and whisper-quiet performance. The integration of a textile laminated phenolic resin cage (T)-guided by the outer ring-allows for sustained operation at temperatures up to 100°C while maintaining structural integrity under rapid acceleration. As a universally matched single bearing with light preload (UL), it offers machine tool builders the flexibility to mount bearings in various configurations (back-to-back, face-to-face, or tandem) without complex adjustments. This makes it an indispensable component for modern CNC grinding spindles and high-performance machining centers requiring rigorous reliability.

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