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High Load Angular Contact Ball Bearings 7206AC High Precision Ball Bearings
Product Overview
The 7206AC angular contact ball bearing delivers high-precision performance with exceptional load capacity, making it ideal for demanding industrial applications requiring reliability and precision.
Basic Parameters
Bore diameter (d)
30mm
Outer diameter (D)
62mm
Width (B)
16mm
Contact angle
25° (suffix "AC" denotes standard angle)
Weight
Approximately 0.198~0.208kg (varies by manufacturer)
Structure
Single-row, non-separable design with inner/outer rings and ball assembly. Cage options include pressed steel (J steel stamping), brass solid, or hard fiber (e.g., phenolic resin).
Material
GCr15/SUJ2 high-carbon chromium bearing steel (HRC58-62), with optional ceramic (Si3N4 balls) or stainless steel (SUS440C) variants for specialized environments.
Speed & Precision
Limiting speed (grease-lubricated): 12,000~14,000rpm
Limiting speed (oil-lubricated): 16,000~19,000rpm
Precision class: Standard P0 (customizable to P5/P4 for high-accuracy machinery)
Paired installation (e.g., back-to-back) required for bidirectional loads
High-speed stability: Optimized raceway geometry reduces friction and heat generation
Tolerance compatibility: Shaft H7/k6, Housing J7
Environmental Adaptability
Temperature range: Standard -20°C to 120°C
High-temperature variants: Up to 300°C with special heat-resistant materials
Sealing options: Open design (standard) with optional 2RS (rubber seals) or ZZ (metal shields)
Typical Applications
Industrial Machinery
Machine tool spindles: Provides rigidity for high-speed machining (CNC lathes and milling machines)
Gearboxes and reducers: Handles radial loads in heavy-duty transmission systems
Pumps and compressors: Resists axial thrust from fluid pressure
Automotive & Transportation
Electric motor shafts: Optimized for low noise and vibration in EV drivetrains
Heavy-duty vehicle differentials: Supports high torque in commercial truck axles
Precision Equipment
Robotics: Enables precise positioning in robotic joints and linear actuators
Medical devices: Used in high-speed dental handpieces and diagnostic imaging equipment
Maintenance & Lubrication Guidelines
Lubrication: Lithium-based grease (NLGI 2) with 10%-15% cavity filling; synthetic polyurea grease recommended for high-temperature applications
Oil systems: Circulating oil systems preferred for continuous high-speed operation
Inspection intervals: Monitor temperature and noise every 8-12 hours of operation
Lubricant replacement: Every 2,000~5,000 hours depending on load and environment
Certifications & Compatibility
Standards compliance: Meets ISO 9001:2015 and industry standards (ISO 281 for load ratings)
Cross-brand compatibility: Interchangeable with equivalent models from major manufacturers (NSK 7206AC, Timken 7206AC)
Summary
The 7206AC angular contact ball bearing combines robust load capacity (up to 28.1kN dynamic), precision, and adaptability, making it ideal for heavy-duty industrial and automotive applications. Its non-separable design and standardized interfaces simplify installation, while material and sealing options extend its usability across diverse environments. Paired with proper lubrication and maintenance, this bearing delivers reliable performance in high-speed, high-load scenarios.
Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was... Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was...
