LES 213 2F Extended Inner Ring Insert Bearing, Double Set Screw & Bilateral 2F Mud-Proof Seals

1. Product Overview

LES 213 2F heavy spherical outer insert bearing adopts fully extended double-side inner ring, 120° symmetric double set screws and bilateral 2F composite labyrinth seals, interchangeable with YAR213-2F standard model. Two-stage 2F seal consists of rotating metal anti-mud flinger and NBR rubber lip to block farm mud, crop straw and coarse industrial dust. Spherical outer ring achieves ±2.5° self-alignment to compensate slight shaft installation deflection. Pre-filled with high-temperature heavy-duty grease and fitted with relubrication nipple, widely used on large combine harvesters, heavy rotary tillers, outdoor mine heavy conveyors and large construction rotary equipment.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F composite labyrinth seal blocks large impurities by rotating metal flinger first, effectively reducing rubber lip wear compared with single-lip 2RS seals
• Double symmetric set screws evenly fasten inner ring to shaft, stable anti-slip under medium vibration and frequent forward-reverse rotation
• Fully extended long inner ring increases contact area with shaft for stronger locking under long-term alternating rotation
• Spherical outer ring automatically offsets assembly misalignment to avoid abnormal bearing internal stress
• Built-in grease filling port supports regular supplementary lubrication to extend continuous heavy-load service life
• GCr15 bearing steel with complete heat treatment provides stable large radial load capacity
• Standard 65×120×69.9mm 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 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

4. Technical Specifications

Full technical data and drawings available upon request

5. Why Choose GQZ Bearing

• 25+ years manufacturing experience of long inner ring 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 long inner ring 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

Click “Send Inquiry” or contact us now

8. FAQ