LES 216 2F Extended Inner Ring Insert Bearing, Double Set Screw Dual-Side 2F Mud-Proof Seals

1. Product Overview

LES 216 2F heavy spherical outer insert bearing features fully extended bilateral inner ring, symmetric double set screws and bilateral 2F composite labyrinth seals, interchangeable with YAR216-2F standard model. Two-stage 2F seal with rotating metal anti-mud flinger and NBR rubber lip blocks farm mud, crop straw and coarse workshop dust. Spherical outer ring delivers ±2.5° self-aligning performance to offset slight shaft installation deflection. Pre-filled with high-temperature heavy-duty grease and fitted with relubrication nipple, widely matched to large grain combine harvesters, heavy rotary tillage machines, outdoor mine heavy conveyors and large construction rotary drive assemblies.

Get a quote within 24 hours for your project

2. Key Advantages

• 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 M10 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 80×140×82.6mm 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 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