LES 207 2F Spherical Outer Insert Ball Bearing with Dual 2F Multi-Layer Labyrinth Dust-Proof Composite Seals

1.Product Overview

LES 207 2F is a medium-large metric insert ball bearing equipped with spherical outer ring and bilateral 2F composite labyrinth sealing unit. Two symmetric M6 set screws are mounted on extended double-side inner ring to lock 35mm shafts firmly during frequent forward and reverse rotation. Its exclusive 2F seal structure consists of outer metal dust flinger and inner NBR rubber lip, which effectively blocks heavy mud, crop debris and industrial abrasive dust. Pre-filled with high-temperature long-life grease and reserved re-lubrication grease nipple, this bearing is widely matched to heavy agricultural harvesting equipment, heavy-duty belt conveyors and outdoor medium-load processing machinery under severe dusty working conditions.

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2.Key Advantages

• 2F double composite labyrinth seal intercepts large impurities via metal flinger first, greatly reducing rubber lip abrasion vs ordinary single-lip 2RS seals
• Spherical outer ring provides ±2.5° self-aligning capacity to compensate minor shaft deflection and housing assembly offset errors
• Dual symmetric M6 set screws evenly clamp inner ring to shaft, effectively preventing slipping under heavy alternating rotation loads
• Built-in grease nipple allows periodic supplementary lubrication to prolong continuous operation service cycle
• GCr15 bearing steel undergoes standardized heat treatment to maintain stable heavy radial load bearing capacity
• Standard 35×72×42.9mm overall dimensions fully interchangeable with UC207 series for all standard cast iron bearing housings

Helps reduce maintenance cost and improve machine performance

3.Applications

This bearing is widely used in:

• Heavy grain harvester and rotary tiller main roller assemblies
• Heavy-load industrial belt conveyor support roller positions
• Medium-large woodworking feeding rotary drive equipment
• Outdoor heavy packaging and sorting transmission units
• Large agricultural irrigation system power transfer rotary shafts

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 professional manufacturing experience of labyrinth sealed spherical insert bearings
• Products exported to over 50 countries worldwide
• Custom OEM services for special anti-rust coating and modified sealing structures
• Complete multi-process inspection for sealing dust resistance, dimensional tolerance 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 Control

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

Ensuring stable performance of each bearing

7.Get a Quote Now

Looking for a professional supplier of medium-large heavy dust-proof 2F sealed insert bearings?

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

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8.FAQ