LSS 211 2F Double Set Screw Insert Bearing, Dual-Side 2F Mud-Proof Labyrinth Seals

1. Product Overview

LSS 211 2F is heavy spherical outer insert bearing with standard short inner ring, dual symmetric set screws and bilateral 2F composite labyrinth seals. Two-stage 2F seal with rotating metal flinger and rubber lip blocks farm mud, straw waste and industrial dust. Spherical outer ring provides ±2.5° self-aligning performance to offset slight shaft deflection. Pre-filled with high-temperature heavy-duty grease and equipped with relubrication nipple, ideal for large harvesters, rotary tillers, outdoor heavy conveyors and construction rotary parts with narrow installation space.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F composite labyrinth seal intercepts large impurities via metal flinger first, effectively reducing rubber lip abrasion compared with ordinary 2RS seals
• 120° symmetric double set screws evenly lock inner ring to shaft, stable anti-slip under medium vibration and forward-reverse rotation
• Standard short inner ring saves axial space, perfect for equipment with limited mounting length
• Spherical outer ring automatically compensates assembly misalignment to avoid abnormal bearing stress
• Built-in grease port supports regular refilling to extend continuous running service life
• GCr15 bearing steel with full heat treatment delivers stable heavy radial load capacity
• Standard 55×100×55.6mm dimensions match 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 supports
• Heavy agricultural rotary tillage transmission shafts
• Outdoor industrial heavy-duty conveyor roller units
• Medium construction machinery rotary drive components
• Muddy outdoor woodworking feeding equipment with compact installation space

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 compact 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 compact 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