LSS 210 2F Double Set Screw Insert Bearing, Dual-Side 2F Mud-Proof Labyrinth Seals

1. Product Overview

LSS 210 2F is large spherical outer insert bearing equipped with bilateral 2F composite labyrinth seals and symmetric double set screws. The two-stage 2F seal combines rotating metal flinger and NBR rubber lip to isolate farm mud, straw waste and workshop dust. Spherical outer ring realizes ±2.5° self-alignment to offset slight shaft installation deflection. Pre-filled with high-temperature heavy-duty grease and fitted with relubrication nipple, it matches large grain harvesters, rotary tillers, outdoor heavy conveyors and construction rotary parts.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F composite labyrinth seal repels large impurities via metal flinger first, greatly reducing rubber lip wear compared with standard 2RS single lip seals
• 120° symmetric double set screws evenly fasten inner ring to shaft, stable anti-slip performance under medium vibration and frequent forward-reverse rotation
• Spherical outer ring automatically adjusts to minor shaft misalignment and avoids abnormal internal bearing stress
• Built-in grease filling port supports regular supplementary lubrication to extend continuous operation service life
• GCr15 bearing steel with complete heat treatment guarantees stable heavy radial load capacity
• Standard 50×90×51.6mm dimensions fit all standard cast iron bearing housings for direct replacement

Helps reduce maintenance cost and improve machine performance

3. Applications

This bearing is widely used in:

• Large grain combine harvester roller support assemblies
• Heavy agricultural rotary tillage transmission shafts
• Outdoor industrial heavy-duty conveyor roller units
• Medium construction machinery rotary drive components
• Muddy outdoor woodworking feeding equipment

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

4. Technical Specifications

Full technical data and drawings available upon request

5. Why Choose GQZ Bearing

• 25+ years manufacturing experience of double set screw 2F sealed spherical insert bearings
• Products exported to 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

6. Quality Assurance

• 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

7. CTA

Get a Quote Now

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

Send your inquiry to get:

• 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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8. FAQ