
Engineered for extreme structural resilience and smooth rotational endurance in demanding industrial drives, high-throughput automated conveyors, and rugged agricultural machinery, the SB208-25 insert bearing delivers precise 1-9/16" x 80mm x 18mm dimensions manufactured from premium GCr15 high-carbon alloy steel. Equipped with an extended inner ring and dual heavy-duty set-screws for rock-solid shaft anchoring, it serves as a flawless direct OEM drop-in replacement for YAT208-109, YA109RRB, FHS208-25, LS-125, AS208-109, and L-25.
⭐ Engineering Specifications & Interchange Guide
Series Designation: SB208-25 (1-9/16" Precision Imperial Profile)
OEM Cross-Reference: SB208-25, YAT208-109, YA109RRB, FHS208-25, LS-125, AS208-109, L-25, GE109KRRB
Imperial Bore (d): 1-9/16 Inches (1.5625" / 39.6875 mm)
Outer Diameter (D): 80 mm
Overall Width (B): 18 mm (Optimized heavy-duty cross-section for superior radial support)
Material Composition: GCr15 Premium Bearing-Grade Chrome Steel
Locking Configuration: Extended Inner Ring with Twin Heavy-Duty Set-Screws
Outer Ring Geometry: Spherical Contour (Self-aligning to compensate for initial shaft deflection)
Sealing Mechanism: Advanced Dual-Lip Contact Seals paired with Protective Steel Slingers
🚗 Performance Highlights & Benefits
Slip-Free Shaft Anchoring: The dual set-screw locking collar grips securely onto transmission shafts, eliminating rotational slip under continuous vibrational loads.
Low-Friction Dynamics: Super-finished internal raceways reduce friction coefficients, keeping operating temperatures cool and stable at high speeds.
Effortless Retrofitting: Designed for universal drop-in compatibility inside standard 208-series pillow blocks, flanged housings, and take-up units.
Reliable Contaminant Defense: Factory pre-greased and tightly sealed to effectively block out abrasive dust, moisture, and fine debris.
⚙️ Target Industrial Applications
Material Handling: Automated sorting lines, heavy roller conveyors, and belt drive modules.
Agricultural Machinery: Combine harvester components, grain augers, and agricultural blowers.
General Industrial Drives: Packaging equipment, textile machinery, and commercial power transmission units.

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