Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
7215AC Angular Contact Ball Bearing - High Precision Versatile Performance
Basic Parameters
Bore diameter (d): 75mm
Outer diameter (D): 130mm
Width (B): 25mm
Contact angle: 25° (suffix "AC" denotes standard angle)
Weight: Approximately 3.6~3.8kg (typical range)
Structure: Single-row, non-separable design with inner/outer rings and ball assembly. Cage options include pressed steel (J steel stamping) for heavy loads or brass solid cage for high-speed stability.
Core Performance Specifications
Load Capacity
Dynamic load rating (Cr): 79~83kN (typical range, varies by manufacturer)
Automotive transmissions: Used in passenger car or light truck differentials.
Marine gearboxes: Corrosion-resistant variants (SUS440C) for saltwater environments.
Precision Equipment
CNC machine tool spindles: Provides rigidity for milling and turning operations (custom P5 precision).
Industrial robotics: Enables precise positioning in robotic arms handling payloads up to 300kg.
Maintenance & Lubrication Guidelines
Lubrication
Grease: Lithium-based grease (NLGI 2) with 15%-20% cavity filling; synthetic polyurea grease recommended for temperatures >120°C.
Oil: Circulating oil systems with ISO VG 32-46 oils for high-speed applications to enhance heat dissipation.
Inspection Intervals
Monitor vibration and temperature every 8-10 hours in heavy-duty cycles.
Replace lubricant every 3,000~6,000 hours depending on load severity.
Certifications & Compatibility
Standards compliance: Meets ISO 9001:2015 and industry standards (e.g., ISO 281 for load ratings).
Cross-brand compatibility: Interchangeable with equivalent standard models from brands like NSK, SKF, and NACHI.
Customization Options
Material Upgrades
Ceramic variants: Full ceramic (Si3N4 balls) for non-magnetic or high-speed applications (dynamic load: ~55kN, static load: ~48kN).
Stainless steel: SUS440C for marine or chemical processing environments (corrosion resistance up to 800 hours in salt spray tests).
Special Configurations
Phosphating coatings: Improves wear resistance in dusty or abrasive conditions.
Laser-etched part numbers: Enhances traceability in critical infrastructure applications.
Summary
The 7215AC angular contact ball bearing balances high load capacity (up to 83kN dynamic), precision, and adaptability, making it ideal for medium-to-heavy duty industrial, transportation, and precision equipment. Its standardized design simplifies installation, while material and sealing options extend usability across diverse environments. With proper lubrication and maintenance, it delivers reliable performance in high-load, high-speed 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...
