LSS 207 2F Spherical Outer Insert Ball Bearing, Double Set Screw Lock & Bilateral 2F Metal Finger Labyrinth Seals

1. Product Overview

LSS 207 2F is a medium-heavy metric spherical outer insert ball bearing built with dual-sided 2F composite labyrinth sealing system and symmetric double M6 set screws on extended full-length inner ring. The unique 2F sealing assembly integrates a metal anti-mud flinger and NBR rubber contact lip, forming dual-stage barrier to block thick mud, crop straw, abrasive dust and splashing water in harsh field environments. Spherical outer surface delivers ±2.5° self-aligning performance to offset minor shaft deflection and assembly misalignment. Pre-filled with high-temperature heavy-duty grease and fitted with built-in relubrication nipple, this bearing is widely installed on grain harvesters, rotary tillers, outdoor heavy belt conveyors and medium-size construction auxiliary machinery.

Get a quote within 24 hours for your project

2. Key Advantages

• 2F dual composite labyrinth seal intercepts large solid impurities via metal flinger first, effectively reducing abrasion of inner rubber lip compared to ordinary single-lip 2RS sealed bearings
• Dual symmetric M6 grub screws lock the inner ring evenly on shaft circumference, stable anti-slip performance under medium vibration and alternating forward-reverse rotation
• Spherical outer ring provides automatic self-alignment capacity, eliminating abnormal bearing stress caused by shaft installation offset
• Reserved grease filling port supports periodic supplementary lubrication to extend continuous heavy-load running cycle
• GCr15 high carbon chromium bearing steel undergoes standardized quenching and tempering for stable medium-heavy radial load bearing capacity
• Standard 35×72×42.9mm dimensional specifications fully interchangeable with YAR207-2F / 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:

• Medium-heavy grain combine harvester roller support assemblies
• Agricultural rotary tillage and soil preparation equipment transmission shafts
• Outdoor industrial heavy-duty belt conveyor roller units
• Medium-size construction machinery outdoor rotary drive components
• Woodworking outdoor log feeding rotary 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 professional manufacturing experience of 2F labyrinth sealed double set screw spherical insert bearings
• Products exported to more than 50 countries worldwide
• Custom OEM services for special 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 fatigue 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

Looking for a professional supplier of medium-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 surface anti-rust and sealing optimization solutions
• Direct factory price without intermediate markup

Click “Send Inquiry” or contact us now

8. FAQ