
Engineered for extreme-capacity industrial drives, the SER211-34 insert bearing features a precise 2-1/8" x 100mm x 55.6mm dimension profile, heavy-duty GCr15 chrome steel construction, and an eccentric locking collar for secure, self-tightening shaft retention. Factory-greased and dual-sealed for extreme operational durability.
⚙️ Dimensions & Technical Specs
Item Model: SER211-34
Bore Diameter (d): 2-1/8 Inches (2.125" / 53.975 mm)
Outer Diameter (D): 100 mm
Total Width / Thickness (B): 55.6 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 utilizes operational rotation to clamp down tightly, minimizing vibration and preventing axial shaft migration under heavy continuous loads.
Heavy-Duty Durability: Forged from top-tier chrome steel to deliver exceptional resistance to surface friction fatigue, heavy radial-axial stresses, and wear.
Housing Adaptability: The outer spherical geometry integrates seamlessly with standard 211-series pillow block and flanged housings, absorbing minor structural deflections.
Contaminant Defense: Factory-packed with high-temperature grease and guarded by double-lip seals to block out abrasive dust, dirt, and moisture.
🚜 Typical Applications
Agricultural Equipment: Large-scale combine harvesters, heavy-duty grain augers, balers, and tractor implement drives.
Conveyor Systems & Logistics: Massive roller beds, extra-large belt drive pulleys, and industrial sorting lines.
Industrial Machinery: Heavy ventilation blower fans, large HVAC mechanical units, and high-power transmission setups.


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