LYF206 2F Square 4-Bolt Flange Bearing Unit, Double 2F Flinger-Rubber Anti-Mud Seals

1. Product Overview

LYF 206 2F four-bolt square grey cast iron flange bearing unit, matched with YEL206-2F eccentric lock insert bearing with double extended inner ring. Double-sided 2F composite seal adopts centrifugal metal flinger + NBR rubber lip two-stage barrier structure, outer flinger throws mud and coarse debris away by centrifugal force, inner rubber lip blocks fine dust and moisture. Eccentric locking collar tightly clamps double extended inner ring to realize stable single-direction continuous rotation. Spherical outer ring provides ±2.5° self-alignment to compensate shaft installation deflection and misalignment. Dual-layer sealing effectively blocks mud, crop residues, industrial dust and splashing water. Side grease nipple supports periodic re-lubrication, widely used on medium-heavy farm machinery, medium-duty belt conveyors, packaging and textile transmission equipment.
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2. Key Advantages

• Dual 2F anti-contamination sealing system: Metal flinger throws mud and dust via centrifugal force; inner rubber lip isolates fine particles and moisture, superior anti-fouling performance than single 2S rubber seals in muddy semi-outdoor working environments.
• Eccentric lock collar provides uniform full-circle clamping force, stable anti-slip under medium-heavy continuous vibration, no scratch damage on shaft surface, designed for constant single-direction rotation equipment.
• HT200 grey cast iron square four-hole flange housing, high structural rigidity, flat mounting surface for quick bolt fixing, compact overall size saves equipment layout space, easy disassembly for maintenance.
• ±2.5° self-aligning spherical outer ring eliminates extra internal stress caused by shaft offset, reduces abnormal bearing wear and running noise.
• Reserved side grease fitting enables regular supplementary lubrication, extends bearing service cycle and cuts equipment maintenance downtime.
• GCr15 fully heat-treated bearing steel with stable medium-heavy radial load capacity, outstanding wear and impact resistance.
• Standard unified metric dimensions, fully interchangeable with single-seal LYF206 bearing units for direct heavy mud-proof sealing upgrade.

Reduce maintenance workload and ensure long-term stable operation of medium-heavy agricultural & industrial machinery

3. Applications

• Medium-heavy rotary tillers, grain harvesters, grain drying & sorting production lines
• Medium-duty belt conveyors, feed processing machinery
• Textile looms, food processing heavy transmission rollers
• Indoor & semi-outdoor equipment operating in dusty, humid and muddy environments

4. Technical Specifications

Dimension drawings and technical data sheets can be provided upon request

5. Why Choose GQZ Bearing

• 25+ years professional manufacturing of double 2F sealed four-bolt square flange bearing units
• Products supplied to more than 50 countries worldwide
• Custom OEM anti-rust coating, surface paint and personalized sealing optimization schemes
• Full pre-delivery inspection covering mud resistance, locking tightness and load durability test
• Fast formal quotation and one-on-one professional medium-heavy duty bearing technical support within 24 hours for all RFQs
• Stable mass production supply chain to meet long-term bulk order demands

We supply consistent stable quality, on-time delivery and long-term win-win cooperation with global buyers

6. Quality Assurance

• Raw bearing steel chemical composition and hardness inspection
• High-precision raceway grinding and surface roughness detection
• 2F double seal mud & dust resistance cycle aging durability test
• Eccentric collar anti-slip vibration impact test
• Dynamic load and low-noise continuous rotation performance test
• Full dimension sorting and 100% visual appearance inspection before packaging

All bearing units pass multi-process strict quality testing before shipment

7. CTA

8. FAQ