Precision 1-3/4" CSA209-28 Eccentric Locking Collar Insert Bearing | 1-3/4" Bore x 85mm Outer Diameter x 43.7mm Width | Industrial & Agricultural Power Transmission Unit (Cross: SA209-28 Spherical OD, Timken/INA RA112RR/RA112-NPP, NTN AELS209-112N/AELS209-028N, AMI/Peer KHR209-28/FHR209-28, SKF YET209-112, FYH SAA209-28FP7)

🛡️ Specification & Global Interchange Hub

• Part Number Designation: CSA209-28 / SA209-28 (1-3/4 Inch Eccentric Collar Series)

• Comprehensive Brand Interchange Directory:

  • Universal Industrial Codes: SA209-28 (Spherical OD variant) / CSA209-28

  • Timken / INA Equivalent: RA112RR / RA112-NPP

  • NTN Equivalent: AELS209-112N / AELS209-028N

  • AMI / Peer Designation: KHR209-28 / FHR209-28

  • SKF Equivalent: YET209-112

  • FYH Equivalent: SAA209-28FP7

• Imperial Bore Dimension (d): 1-3/4 Inches (approx. 44.45 mm)

• Outer Ring Diameter (D): 85 mm (Spherical outer contour design)

• Total Assembly Width (B): 43.7 mm (Optimized profile for robust load capacity and secure housing fit)

• Material Architecture: High-Grade Chrome Steel (Vacuum degassed for enhanced fatigue life, shock resistance, and wear protection)

⭐ Engineering Architecture & Performance Merits

• Eccentric Locking Collar System: Features a matching eccentric locking collar that tightens securely onto the shaft via simple rotation, ensuring rapid, slip-resistant, and vibration-proof installation.

• Spherical Outer Ring Contour: Self-aligning design accommodates initial static misalignments between the shaft and housing supports under harsh operating conditions.

• Dual-Lip Contact Sealing: Equipped with reinforced rubber seals and metal flingers to effectively retain premium lithium grease while sealing out abrasive dust, dirt, and moisture.

• Pre-Lubricated & Maintenance-Ready: Factory-filled with high-performance anti-friction grease for immediate, reliable deployment in rugged industrial environments.

🚚 Target Industrial Sectors & Deployment Fields

• Heavy Agricultural Machinery: Combine harvesters, heavy grain augers, seeders, and large-scale tillage equipment drives.

• Material Handling & Bulk Conveying: Heavy-duty belt conveyors, sorting lines, and industrial roller beds.

• Industrial Equipment & Blowers: Large HVAC ventilation units, commercial air handlers, and high-capacity machinery pulley drives.