LES 218 2F Extended Inner Ring Insert Bearing, Double Set Screw Dual-Side 2F Mud-Proof Seals

LES 218 2F heavy spherical outer insert bearing features fully extended bilateral inner ring, symmetric double set screws and bilateral 2F composite labyrinth seals, interchangeable with YAR218-2F standard model. Two-stage 2F seal with rotating metal anti-mud flinger and NBR rubber lip blocks farm mud, crop straw and coarse industrial dust. Spherical outer ring provides ±2.5° self-aligning function to offset slight shaft installation deflection. Pre-filled with high-temperature heavy-duty grease and equipped with relubrication nipple, widely used on large combine harvesters, heavy rotary tillers, outdoor mine heavy conveyors and large construction rotary equipment.

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• 2F composite labyrinth seal intercepts large impurities via rotating metal flinger first, greatly reducing rubber lip abrasion compared with single-lip 2RS seals
• 120° symmetric double M12 set screws evenly clamp inner ring to shaft circumference, stable anti-slip under medium vibration and frequent forward-reverse rotation
• Fully extended long inner ring enlarges shaft contact area for stronger locking during long-time alternating rotation
• Spherical outer ring automatically compensates assembly misalignment to avoid abnormal internal bearing stress
• Built-in grease port supports regular supplementary lubrication to extend continuous heavy-load service life
• GCr15 bearing steel with complete heat treatment guarantees stable heavy radial load capacity
• Standard 90×160×86.0mm dimensions fit all standard cast iron bearing housings for direct replacement

Helps reduce maintenance cost and improve machine performance

This bearing is widely used in:

• Large grain combine harvester main roller supports
• Heavy agricultural rotary tillage transmission shafts
• Outdoor industrial heavy-duty mine conveyor roller units
• Large construction machinery outdoor rotary drive components
• Muddy outdoor large log feeding woodworking equipment

Ideal for customers looking for reliable and long-life bearing solutions

Full technical data and drawings available upon request

• 25+ years manufacturing experience of long inner ring double set screw 2F sealed spherical insert bearings
• Products exported to more more than 50 countries worldwide
• Custom OEM services for anti-rust coating and modified sealing structures
• Complete multi-process inspection for mud resistance, locking tightness and load performance before shipment
• Fast professional technical reply within 24 hours for all customer inquiries
• Stable mass production supply chain for long-term bulk order cooperation

We focus on quality, reliability, and long-term partnership

• Raw bearing steel composition and hardness inspection
• Raceway ultra-precision grinding and surface roughness testing
• 2F composite labyrinth seal anti-mud durability cycle test
• Double set screw locking anti-slip vibration impact inspection
• Dynamic load capacity and low-noise rotation performance test
• Final dimension sorting and visual appearance check before packing

Ensuring stable performance of each bearing

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Looking for a professional supplier of heavy mud-proof long inner ring double set screw 2F sealed insert bearings?

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• Fast formal quotation within 24 hours
• One-on-one technical support from bearing professional engineers
• Custom anti-rust and sealing optimization solutions
• Direct factory price without intermediate markup

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