
Engineered for compact industrial machinery, agricultural equipment, and specialized conveyor assemblies, the CSB209-28 1-3/4 inch set screw insert ball bearing combines precision 1-3/4" x 85mm x 19mm narrow inner ring dimensions with dual set screws for secure, space-saving shaft mounting. Designed for smooth rotation under moderate loads, it acts as an exact direct replacement for Peer FHSR209-28 / SL-1-3/4, Fafnir/FAG YA112RR / AY1-3/4-NPP, Asahi/NTN ASS209-112N / SB209-28, Dodge/IPTCI BR209-28 / CSB209-28N, and Browning/Morse SLS-128.
🛡️ Specification & Global Interchange Hub
Part Number Designation: CSB209-28 / CSB209-28N (1-3/4 Inch Narrow Inner Ring Set Screw Series)
Comprehensive Brand & Cross-Reference Directory:
Peer / Link-Belt Equivalent: FHSR209-28 / SL-1-3/4
Fafnir / FAG Equivalent: YA112RR / AY1-3/4-NPP
Asahi / NTN Equivalent: ASS209-112N / SB209-28
Dodge / IPTCI Equivalent: BR209-28 / CSB209-28N
Browning / Morse Equivalent: SLS-128
Imperial Bore Dimension (d): 1-3/4 Inches (approx. 44.45 mm)
Outer Ring Diameter (D): 85 mm (Spherical outer contour for self-alignment)
Total Width (B): 19 mm (Narrow inner ring design tailored for limited space applications)
Material Architecture: High-Grade Chrome Steel (Vacuum degassed for enhanced fatigue resistance and durability)
⭐ Engineering Architecture & Performance Merits
Compact Narrow-Width Design: Optimized 19mm width allows seamless integration into space-constrained housings and specialized agricultural frames.
Dual Set Screw Locking System: Positioned on the inner ring to provide a reliable, slip-resistant grip on shafts under steady rotational forces.
Spherical Outer Ring Contour: Accommodates initial angular misalignments between the shaft and supporting structures, extending operating life.
Advanced Seal Protection: Fitted with high-efficiency contact seals to lock in lubrication and prevent environmental contaminants from entering the raceway.
🚚 Target Industrial Sectors & Deployment Fields
Agricultural Machinery: Specialized seeders, light grain handling equipment, and compact harvester components.
Material Handling: Compact roller conveyors, belt idlers, and packaging machinery drives.
General Industrial Systems: HVAC blower units, textile machinery, and light commercial drives.

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