LYS 207 2F Spherical Outer Insert Ball Bearing, Eccentric Lock Collar & Dual-Side 2F Metal Finger Composite Labyrinth Seals

1. Product Overview

LYS 207 2F is a medium-large metric spherical outer insert ball bearing with bilateral 2F composite labyrinth sealing assembly and eccentric locking collar. Different from set-screw locked LES/LSS series, it relies on an offset eccentric ring to achieve tight shaft clamping, which delivers stronger anti-slip performance under heavy alternating impact loads. Its exclusive 2F sealing unit combines outer metal anti-mud flinger and inner NBR rubber contact lip, which intercepts thick mud, crop straw debris and coarse industrial dust effectively. Factory pre-filled with high-temperature heavy-duty grease and reserved relubrication grease nipple, this bearing is widely matched to heavy grain harvesters, rotary tillage machines and outdoor heavy-duty belt conveyors with extremely harsh muddy working environments.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F double composite labyrinth seal firstly blocks large mud and straw impurities via metal flinger, drastically reducing rubber lip abrasion compared with single-lip 2RS contact seals
• Eccentric locking collar provides uniform circumferential clamping force on the shaft, far better anti-slip effect than double set screws under heavy impact vibration loads
• Spherical outer ring delivers ±2.5° self-aligning capacity to compensate minor shaft deflection and housing assembly offset errors
• Built-in grease nipple supports periodic supplementary lubrication to prolong continuous heavy-load operation service cycle
• GCr15 bearing steel undergoes standardized quenching and tempering to maintain stable heavy radial load bearing capacity
• Standard 35×72×51.1mm overall dimensions fully interchangeable with YEL207-2F series for all standard cast iron bearing housings

Helps reduce maintenance cost and improve machine performance

3. Applications

This bearing is widely used in:

• Heavy-duty grain combine harvester main roller assemblies
• Large agricultural rotary tillage and soil preparation equipment shafts
• Outdoor heavy-load mine auxiliary belt conveyor support rollers
• Construction machinery outdoor rotary transmission units
• Forestry logging heavy material conveying 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 eccentric collar locked 2F labyrinth sealed spherical insert bearings
• Products exported to over 50 countries worldwide
• Custom OEM services for special anti-rust coating and modified sealing structures
• Complete multi-process inspection for sealing mud resistance, eccentric 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 test
• Eccentric collar locking anti-slip impact fatigue 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 eccentric collar heavy mud-proof 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