SER207-21 Insert Ball Bearing | 1-5/16" x 72mm x 42.9mm, Eccentric Locking Collar for Agricultural & Conveyor Systems

⚙️ Dimensions & Technical Specs

Item Model: SER207-21

Bore Diameter (d): 1-5/16 Inches (1.3125" / 33.337 mm)

Outer Diameter (D): 72 mm

Total Width / Thickness (B): 42.9 mm (Wide inner ring configuration)

Material Composition: Premium GCr15 High-Carbon Chrome Steel

Locking Mechanism: Eccentric Locking Collar (Self-tightening rotation design)

Outer Ring Profile: Spherical Outer Ring (Accommodates housing misalignment)

Sealing Technology: Dual Rubber Contact Seals

💡 Key Performance Highlights

Self-Tightening Eccentric Collar: The locking collar rotates with the shaft to lock down securely, minimizing vibration and preventing axial shaft migration under continuous unidirectional loads.

Heavy-Duty Durability: Forged from top-tier chrome steel to deliver exceptional resistance to surface wear, friction fatigue, and radial-axial stress.

Housing Flexibility: The outer spherical geometry integrates seamlessly with standard 207-series pillow block and flange housings, absorbing minor structural deflections.

Contaminant Shielding: Factory-packed with premium grease and guarded by double-lip seals to block out abrasive dirt, dust, and moisture.

🚜 Typical Applications

Agricultural Equipment: Grain augers, seeders, and harvester auxiliary drives.

Conveyor & Logistics: Powered roller beds, belt conveyors, and sorting lines.

Industrial Machinery: Ventilation fans, blower assemblies, and general power transmission units.