LE 311 2F Reinforced Heavy-Duty Insert Ball Bearing 55mm Bore 120mm OD Spherical

The LE 311 2F is a reinforced heavy-duty insert ball bearing designed for the most demanding positions in large agricultural equipment. With a 55mm bore, an enlarged 120mm OD, and a 66.0mm inner ring, it achieves an impressive 71.5 kN kN dynamic load rating — significantly exceeding standard large-bore bearings.

The reinforced cross-section and premium internal geometry are engineered for appliions where bearing loads fluctuate between heavy static loading during transport and high dynamic forces during field operation. The 2F seal system with heavy-duty flinger provides uncompromising contamination protection.

Selected by professional equipment engineers for critical bearing positions where standard bearings have proven inadequate under intensive agricultural use.

Get a quote within 24 hours for your project.

Full technical data and drawings available upon request.

This bearing is widely used in:

• Large self-propelled sprayer and spreader chassis
• Heavy-duty sugar beet harvester main rotors
• Industrial-grade potato and root crop harvester webs
• Large wood chipper and forestry mulcher rotors
• Cotton harvester spindle and doffer drives
• Mining and quarry conveyor head pulleys (agricultural-related material handling)

Suitable for extreme radial loads, severe impact and vibration, abrasive dust, and continuous high-intensity operation.

• Massive 71.5 kN kN dynamic load rating — handles the most demanding agricultural shaft positions
• Enlarged 120mm OD distributes extreme radial forces across a larger housing contact area
• 66.0mm inner ring with maximum wall thickness for ultimate shaft support and alignment
• Spherical outer surface (±2°) absorbs heavy frame flex in wide agricultural implements
• Eccentric locking collar with precision-machined deep groove for rock-solid shaft clamping
• 2F seal with reinforced flinger — tested in extreme dust, mud, and high-pressure cleaning environments
• Super-finished raceways with optimized internal clearance for minimal friction under heavy load
• Available in standard (2F) and heat-stabilized (2F.SH) variants for high-temperature appliions

Engineered without compromise for agricultural equipment that operates at the limits of bearing technology.

• 25+ years experience in industrial bearing manufacturing and export
• Exported to 50+ countries worldwide with reliable logistics
• Rich experience in OEM and custom bearing projects
• 100% quality inspection with precision CNC machining and strict heat treatment control
• Fast response within 24 hours for all inquiries
• Stable supply capacity for long-term cooperation

We focus on quality, reliability, and long-term partnership with every customer.

Looking for a reliable agricultural bearing supplier?

Send your inquiry to get:

• Fast quotation within 24 hours
• Technical support from experienced engineers
• Custom solution suggestions for your appliion
• Competitive factory-direct pricing

Click Send Inquiry or contact us now to discuss your bearing requirements.

Q1: Can you provide custom bearings?

Yes, we support OEM and custom production based on your drawings, samples, or technical requirements.

Q2: What is the delivery time?

Standard models: 7–15 working days. Custom products: depending on specifiions and order quantity.

Q3: Do you provide samples?

Yes, sample orders are welcome for quality evaluation before bulk purchase.

Q4: What is the difference between 2F and 2F.SH?

2F is the standard version suitable for operating temperatures -20°C to +100°C. 2F.SH is the heat-stabilized version for appliions up to +150°C.