LYS 218 2F Eccentric Collar Insert Bearing, Dual-Side 2F Mud-Proof Labyrinth Seals

1.Product Overview

LYS 218 2F heavy spherical outer insert bearing is equipped with bilateral 2F composite labyrinth seals and anti-loosening eccentric locking collar, fully interchangeable with YEL218-2F standard model. The full-circumference eccentric collar provides uniform clamping force, effectively preventing inner ring slipping under heavy impact and continuous vibration loads. Two-stage 2F seal with rotating metal flinger and NBR rubber lip blocks thick farm mud, crop straw residues and coarse mineral dust. Pre-filled with high-temperature heavy-duty grease and built-in relubrication nipple, widely used on large grain combine harvesters, heavy rotary tillage machines, outdoor mine heavy conveyors and large construction rotary drive assemblies.
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2.Key Advantages

• 2F composite labyrinth seal throws off large solid impurities via rotating metal flinger first, greatly reducing rubber lip abrasion compared with ordinary single-lip 2RS seals
• Eccentric locking collar delivers full-circle shaft clamping, far stronger anti-slip stability than double set screws under severe vibration and frequent forward-reverse rotation
• Spherical outer ring offers ±2.5° self-aligning capacity to compensate minor shaft installation deflection and avoid abnormal internal bearing stress
• Built-in grease nipple supports regular supplementary lubrication to extend continuous heavy-load service cycle
• GCr15 bearing steel with complete quenching and tempering heat treatment ensures stable heavy radial load bearing capacity
• Standard 90×160×101.6mm dimensions fit all standard cast iron bearing housings for direct replacement

Helps reduce maintenance cost and improve machine performance

3.Applications

This bearing is widely used in:

• Large grain combine harvester main roller supports
• Heavy agricultural rotary tillage transmission shafts
• Outdoor industrial heavy-duty mine conveyor roller units
• Large construction machinery outdoor rotary drive components
• Muddy outdoor large log feeding woodworking 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 manufacturing experience of eccentric lock 2F sealed spherical insert bearings
• Products exported to more than 50 countries worldwide
• Custom OEM services for anti-rust coating and modified sealing structures
• Complete multi-process inspection for 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 fatigue test
• Eccentric collar 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 heavy mud-proof eccentric lock 2F sealed insert bearings?
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Fast formal quotation within 24 hours
One-on-one technical support from bearing professional engineers
Custom anti-rust and sealing optimization solutions
Direct factory price without intermediate markup

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8.FAQ