
Engineered for light-duty industrial machinery, conveyor assemblies, and specialized mechanical housings, the CSB204-12 3/4 inch narrow series insert ball bearing combines precision 3/4" x 47mm x 14mm dimensions with a streamlined narrow inner ring and secure locking design. Designed for efficient shaft mounting in compact spaces under moderate radial loads, it serves as an exact direct replacement for Fafnir/FAG YA012RR / AY12-NPP, Peer/Link-Belt FHSR204-12 / SL-12, Browning/Morse SLS-112, and corresponding Asahi / NTN narrow-series equivalents.
🔧 Specification & Global Interchange Hub
Part Number Designation: CSB204-12 (3/4 Inch Narrow Series Insert Bearing)
Comprehensive Brand & Interchange Directory:
Fafnir / FAG Equivalent: YA012RR / AY12-NPP
Peer / Link-Belt Equivalent: FHSR204-12 / SL-12
Browning / Morse Equivalent: SLS-112
Asahi / NTN Equivalent: Corresponding Narrow-Series Interchange Units
Imperial Bore Dimension (d): 3/4 Inches (approx. 19.05 mm)
Outer Ring Diameter (D): 47 mm
Total Assembly Width (B): 14 mm (Streamlined narrow profile optimized for space-saving housing assemblies)
Material Architecture: High-Grade Chrome Steel (Vacuum degassed for enhanced fatigue life, wear resistance, and long-term durability)
🌟 Engineering Architecture & Performance Merits
Streamlined Narrow Design: Features a compact profile tailored for applications where axial space is strictly limited without compromising load performance.
Spherical / Cylindrical Contour Adaptability: Precision-ground outer configurations engineered to fit seamless standard bearing housings.
Effective Contact Sealing: Equipped with robust rubber seals to effectively retain high-grade grease while sealing out environmental dust and moisture.
Pre-Lubricated & Maintenance-Ready: Factory-filled with high-performance anti-friction grease for immediate, reliable deployment upon installation.
🚛 Target Industrial Sectors & Deployment Fields
Compact Conveyor Systems: Lightweight belt conveyors, gravity roller beds, and sorting lines.
Agricultural & Light Equipment: Small seeders, lawn and turf care machinery, and minor auger drives.
General Industrial Machinery: Light ventilation fans, textile equipment, packaging machinery, and small motor assemblies.

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