LEF215-2F 4-Bolt Flange Bearing, Eccentric Lock, Double 2F Mud-Proof Seals

1. Product Overview

LEF215-2F four-bolt square cast iron flange bearing unit, matched with YEL215-2F double extended inner ring eccentric lock insert bearing. Double-sided 2F composite seal adopts metal flinger + NBR lip two-stage barrier to block mud, crop debris and cooling water splashes. Eccentric locking collar tightly clamps double extended inner ring for stable single-direction rotation under long heavy vibration. Spherical outer ring offers ±2.5° self-alignment to compensate shaft assembly misalignment. Side grease nipple supports periodic supplementary lubrication. Widely used for large grain harvesters, heavy belt conveyors, grain sorting equipment and textile heavy transmission rollers.
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2. Key Advantages

• Dual 2F anti-fouling sealing system: Outer metal flinger throws mud clumps via centrifugal force; inner rubber lip blocks fine dust and water mist, far better anti-mud performance than single 2S rubber seals.
• Eccentric collar delivers uniform full-circle clamping force, anti-loose under continuous vibration, no scratch on shaft surface, ideal for fixed single rotation equipment.
• HT200 grey cast iron square flange housing, high structural rigidity, quick bolt mounting & disassembly, compact size saves equipment layout space.
• ±2.5° self-aligning spherical outer ring eliminates assembly offset stress, reduces abnormal bearing wear and running noise.
• Reserved grease fitting for regular lubrication, extend service life and cut equipment maintenance downtime.
• GCr15 fully heat-treated bearing steel, stable heavy radial load capacity, excellent wear & impact resistance for long-hour heavy-duty operation.
• Standard unified metric dimensions, fully interchangeable with single-seal LEF215 for direct mud-proof sealing upgrade.

Reduce maintenance workload and guarantee stable operation of heavy agricultural & industrial machinery

3. Applications

• Large grain harvesters, field rotary tillers
• Heavy-duty belt conveyors, grain drying & sorting production lines
• Feed processing equipment, textile heavy transmission rollers
• Dusty, humid, muddy indoor and semi-outdoor production equipment

4. Technical Specifications

Dimension drawings and spec sheets can be provided upon request

5. Why Choose GQZ Bearing

• 25+ years professional manufacturer of 2F sealed eccentric lock four-bolt flange bearing units.
• Every batch passes mud resistance aging, vibration endurance and heavy load durability tests before delivery.
• Support OEM custom anti-rust coating, housing paint color and sealing upgrade schemes.
• Fast formal quotation and one-on-one professional installation technical support within 24h for all RFQs.
• Stable mass production capacity to meet long-term bulk order demands from global machinery manufacturers.

Factory direct price, consistent quality and on-time batch delivery for overseas buyers

6. Quality Assurance

• Raw bearing steel hardness & chemical composition inspection
• High-precision raceway grinding surface roughness test
• 2F double composite seal mud splash cycle aging durability test
• Eccentric collar anti-slip vibration impact test
• Low-noise continuous rotation heavy load performance test
• Full dimension sorting & 100% visual appearance inspection before packing

All LEF 215 2F bearing units pass multi-process strict quality inspection before shipment

8. FAQ

Q1: What’s the advantage of 2F seal over single 2S rubber seal?
2F two-stage composite seal first repels large mud blocks by metal flinger, then isolates tiny dust and water mist with rubber lip, outstanding protection for muddy outdoor agricultural equipment.

Q2: What machinery fits LEF 215 2F?
Heavy equipment with 4-hole flat mounting base running in fixed single rotation, such as large harvesters, heavy conveyors and grain processing machines working in muddy field environments.

Q3: Can LEF 215 2F replace ordinary single-seal LEF215?
Yes, inner bore, outer diameter and flange mounting dimensions follow unified international metric standards, no modification to equipment mounting base during replacement.