LEF211-2F 4-Bolt Flange Bearing, Eccentric Lock, Double 2F Mud-Proof Seals

LEF211-2F four-bolt square cast iron flange bearing unit, matched with YEL211-2F double extended inner ring eccentric lock insert bearing. Double-sided 2F composite seal combines metal flinger and NBR lip rubber for two-stage mud & dust isolation. Eccentric locking collar clamps extended inner ring tightly for stable one-way rotation under heavy vibration. Spherical outer ring provides ±2.5° self-alignment to compensate shaft installation misalignment. Side grease nipple allows regular re-lubrication. Widely used for agricultural harvesters, heavy belt conveyors, grain sorting and textile transmission rollers.
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• Dual 2F anti-fouling seal: Outer metal flinger throws mud and large debris by centrifugal force; inner rubber lip blocks fine dust and water mist, much better anti-pollution than single 2S rubber seals.
• Eccentric collar full-circle clamping force, anti-loose under long-time vibration, no scratch on shaft surface, ideal for fixed single rotation equipment.
• HT200 grey cast iron square flange housing with high rigidity, quick bolt mounting, compact structure to save assembly space.
• ±2.5° self-aligning spherical outer ring eliminates assembly stress, reduces abnormal bearing wear and running noise.
• Reserved grease fitting for periodic lubrication, extend service life and cut maintenance downtime.
• GCr15 fully quenched bearing steel, stable heavy radial load capacity, good wear & impact resistance.
• Standard unified metric dimensions, fully interchangeable with single-seal LEF211 for direct mud-proof upgrade.

Reduce maintenance workload and guarantee stable operation of heavy farm & industrial equipment

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

Dimension drawings and spec sheets available on request

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

Factory direct price, stable quality and on-time delivery for global machinery buyers

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

All LEF 211 2F bearing units pass multi-process strict inspection before shipment