LYF215-2S 4-Bolt Flange Bearing, Eccentric Lock, Double 2S Dust Seals

LYF215-2S four-bolt square cast iron flange bearing unit, matched with YEL215-2S double extended inner ring eccentric lock insert bearing. Double-sided thickened 2S NBR double-lip contact rubber seals block fine dust, water vapor and light flying debris. Eccentric locking collar tightly clamps the double extended inner ring to maintain stable one-way continuous rotation under long heavy vibration. Spherical outer ring provides ±2.5° self-alignment to offset shaft assembly misalignment. Side grease nipple supports periodic supplementary lubrication. Widely used for grain harvesters, belt conveyors, packaging equipment and textile heavy transmission rollers in indoor or slightly dusty semi-outdoor environments.

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• Dual 2S double-layer rubber lip sealing forms reliable dual dust-proof barrier, effectively slows grease leakage and extends bearing service cycle under light dust conditions.
• Eccentric locking collar provides uniform full-circle clamping force, stable anti-loosening under mechanical vibration, no scratches on shaft surface.
• HT200 grey cast iron square four-bolt flange housing with high structural rigidity, flat mounting surface for quick bolt installation and disassembly during maintenance.
• Spherical outer ring automatically compensates shaft installation offset, eliminates extra internal stress, reduces abnormal friction, wear and running noise.
• Reserved side grease fitting hole for regular grease replenishment, suitable for long-hour non-stop heavy load operation.
• GCr15 fully quenched bearing steel with stable heavy radial load capacity, compact overall size to save equipment layout space.
• Standard unified metric dimensions, fully interchangeable with single-sided sealed LYF215 for sealing upgrade.

Reduce daily maintenance frequency and ensure stable continuous operation of general agricultural and industrial machinery

• Medium & large grain harvesters, light rotary tillers
• General heavy-duty belt conveyors, grain drying & sorting production lines
• Feed and food packaging equipment, textile heavy transmission rollers
• Indoor workshops, slightly humid & low-dust semi-outdoor production equipment

• 25+ years professional manufacturer of double sealed eccentric lock four-bolt flange bearing units.
• Each production batch passes dust resistance aging, vibration endurance and heavy load durability tests before delivery.
• Support OEM customized anti-rust coating, housing surface paint color and sealing structure optimization.
• Fast formal quotation and one-on-one professional installation technical guidance within 24 hours for all RFQs.
• Stable mass production capacity to meet long-term bulk order demands from global machinery manufacturers and distributors.

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

• Raw GCr15 bearing steel hardness & chemical composition inspection
• HT200 cast iron housing toughness & tensile strength test
• High-precision raceway grinding surface roughness inspection
• Double 2S rubber seal dust resistance cycle aging durability test
• Eccentric collar anti-slip vibration impact test
• Low-noise continuous rotation heavy load performance test
• Full dimension tolerance sorting & 100% visual appearance inspection before packing

All LYF 215 2S bearing units pass multi-process strict quality inspection before shipment

Q1: What’s the difference between 2S rubber seal and 2F composite mud-proof seal?
2S is double-lip pure rubber contact seal, suitable for indoor low-dust, light splash working conditions, cost-effective; 2F adds metal flinger, two-stage barrier, strong mud resistance for outdoor muddy farm environments.

Q2: What equipment fits LYF 215 2S?
Heavy machinery with flat four-hole mounting base requiring fixed one-way rotation, working in indoor or less muddy semi-outdoor scenarios, such as grain conveyors, packaging machines and indoor harvester auxiliary parts.

Q3: Can LYF 215 2S replace ordinary single-seal LYF215?
Yes, inner bore, outer diameter and flange mounting hole dimensions adopt unified international metric standards, no modification to equipment mounting base during replacement.