Heavy-Duty HC207-21 Insert Ball Bearing | 1-5/16" Bore x 72mm Outer Diameter x 20mm Width (Dual Set Screws Cross G1105KRRB, UEL207-105D1, YEL207-105, VE-221, NA207-21, INS-SXR-105, R-21E)

🛠️ Engineering Parameters & OEM Matrix

• Model Designation: HC207-21 (1-5/16" Bore)

• OEM Cross-Reference List: G1105KRRB, UEL207-105D1, YEL207-105, VE-221, NA207-21, UG207-21, INS-SXR-105, R-21E, RA021RR

• Imperial Inner Bore: 1-5/16 Inches (1.3125" / 33.3375 mm)

• Outer Diameter: 72 mm

• Overall Thickness / Width: 20 mm (Extended wide inner ring geometry)

• Alloy Material: High-Carbon GCr15 Chrome Steel

• Locking Mechanism: Dual Socket Set Screws (Staggered design for superior shaft bite)

• Outer Surface Contour: Spherical Profile (Accommodates initial angular misalignment)

• Seal Architecture: Dual-Lip Rubber Contact Seals with Heavy-Duty Steel Flingers

✨ Advanced Performance Benefits

• Zero-Slip Shaft Grip: Dual set screws anchor firmly onto the shaft upon torque application, neutralizing rotational play and axial shifting under heavy cyclic loads.

• Balanced Load Distribution: The wider inner ring configuration spreads radial and tilting forces evenly, reducing localized stress and extending component lifespan.

• Plug-and-Play Adaptability: Engineered to drop seamlessly into standard 207-series pillow blocks, flange units, and take-up assemblies without housing alterations.

• Industrial-Grade Shielding: Pre-packed with high-temperature, water-resistant grease and protected by dual lip seals to lock out abrasive soil, grain dust, and moisture.

⚙️ Target Operational Environments

• Heavy Agricultural Implements: Combine harvester auxiliary drives, high-capacity grain augers, and heavy tractor machinery.

• Industrial Material Handling: Aggregate conveyor systems, heavy-duty sorting lines, and automated bulk transfer units.

• Commercial Drive Units: Large industrial ventilation blowers, fan banks, and processing gear trains.