LYF211-2F 4-Bolt Flange Bearing, Eccentric Lock, Double 2F Mud-Proof Seals

LYF211-2F 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 adopts metal flinger + NBR lip two-stage barrier to block mud, crop debris and workshop water splashes. Eccentric locking collar tightly clamps double extended inner ring for stable single-direction rotation under long heavy vibration. Spherical outer ring provides ±2.5° self-alignment to compensate shaft assembly misalignment. Side grease nipple supports periodic re-lubrication. Widely used for grain harvesters, heavy conveyors, grain sorting and textile heavy transmission rollers.

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• Dual 2F anti-fouling sealing system: Outer metal flinger throws off 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 full-circle uniform 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 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 LYF211 for direct mud-proof sealing upgrade.

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

• Large grain harvesters & 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

Dimension drawings and spec sheets available on request

• 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

• 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 LYF 211 2F bearing units pass multi-process strict quality inspection before shipment