LES 208 2F Spherical Outer Insert Ball Bearing, Dual Symmetric Set Screws &

1. Product Overview

LES 208 2F is a large-size metric spherical outer insert ball bearing equipped with bilateral 2F composite labyrinth sealing assembly and dual symmetric M6 set screws on full extended double-side inner ring. Its exclusive two-stage 2F sealing unit consists of outer metal anti-mud flinger and inner NBR rubber contact lip, forming dual barrier to intercept heavy farm mud, crop straw, coarse industrial dust and splashing cooling water. The spherical outer surface delivers ±2.5° self-aligning capacity to offset minor shaft deflection and housing assembly offset errors. Factory pre-filled with high-temperature heavy-load grease and reserved built-in relubrication nipple, this bearing is widely matched to large grain combine harvesters, heavy rotary tillage equipment, outdoor mine light belt conveyors and medium construction machinery rotary drive units.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F dual composite labyrinth seal intercepts large solid impurities via metal flinger first, drastically reducing abrasion of inner rubber lip compared with ordinary single-lip 2RS contact seals
• Dual 120° symmetric M6 grub screws evenly clamp inner ring on shaft circumference, stable anti-slip performance under medium vibration and frequent forward-reverse alternating rotation
• Spherical outer ring provides automatic self-alignment capacity, eliminating abnormal bearing stress caused by shaft installation misalignment
• Reserved grease filling port supports periodic supplementary lubrication to extend continuous heavy-load running service cycle
• GCr15 high carbon chromium bearing steel undergoes standardized quenching and tempering for stable large radial load bearing capacity
• Standard 40×80×49.2mm dimensional specifications fully interchangeable with YAR208-2F / UC208 series for all standard cast iron bearing housings

Helps reduce maintenance cost and improve machine performance

3. Applications

This bearing is widely used in:

• Large grain combine harvester main roller support assemblies
• Heavy agricultural rotary tillage and soil preparation transmission shafts
• Outdoor industrial heavy-duty mine auxiliary belt conveyor roller units
• Medium-size construction machinery outdoor rotary drive components
• Outdoor large woodworking log feeding rotary equipment

Ideal for customers looking for reliable and long-life bearing solutions

4. Technical Specifications

Full technical data and drawings available upon request

5. Why Choose GQZ Bearing

• 25+ years professional manufacturing experience of 2F labyrinth sealed double set screw spherical insert bearings
• Products exported to more than 50 countries worldwide
• Custom OEM services for special anti-rust coating and modified sealing structures
• Complete multi-process inspection for mud resistance, locking tightness and load performance before shipment
• Fast professional technical reply within 24 hours for all customer inquiries
• Stable mass production supply chain for long-term bulk order cooperation

We focus on quality, reliability, and long-term partnership

6. Quality Assurance

• Raw bearing steel composition and hardness inspection
• Raceway ultra-precision grinding and surface roughness testing
• 2F composite labyrinth seal anti-mud durability cycle fatigue test
• Double set screw locking anti-slip vibration impact inspection
• Dynamic load capacity and low-noise rotation performance test
• Final dimension sorting and visual appearance check before packing

Ensuring stable performance of each bearing

7. CTA

Get a Quote Now

Looking for a professional supplier of large heavy mud-proof double set screw 2F sealed insert bearings?

Send your inquiry to get:

• Fast formal quotation within 24 hours
• One-on-one technical support from bearing professional engineers
• Custom surface anti-rust and sealing optimization solutions
• Direct factory price without intermediate markup

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8. FAQ