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Features

Specifications

Type: High Speed Precision Bearings

Bearing Material: Bearing Steel GCr15

Bore: 35 Mm

Outer Diameter: 80 Mm

Width: 21 Mm

Model: Customizable

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7307AC Angular Contact Ball Bearings

Angular Contact Ball Bearings Customizable

Customizable High Speed Precision Bearings

Basic Infomation

Place of Origin: CHINA

Brand Name: Kesle

Payment & Shipping Terms

Delivery Time: 5-8 work days

Payment Terms: T/T,Western Union,MoneyGram,PayPal

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7307AC Angular Contact Ball Bearings Customizable High Speed Precision Bearings

Product Description

7307AC Angular Contact Ball Bearings Customizable High Speed Precision Bearings

7307AC Angular Contact Ball Bearing High Speed Precision Performance For Precision Equipment

Basic Parameters

Bore diameter (d)	35mm
Outer diameter (D)	80mm
Width (B)	21mm
Contact angle	25° (suffix "AC" denotes standard angle)
Weight	Approximately 0.47kg
Structure	Single-row, non-separable design with inner/outer rings and ball assembly

Core Performance Specifications

Load Capacity

Dynamic load rating (Cr): 38.2~40kN
Static load rating (C0r): 24.9~26.3kN
Material: GCr15/SUJ2 high-carbon chromium bearing steel, heat-treated to achieve surface hardness of HRC58-62

Speed & Precision

Limiting speed:
- Grease-lubricated: 7,500~8,000rpm
- Oil-lubricated: 10,000~11,000rpm
Precision class: Standard P0 (customizable to P5 for high-accuracy applications)

Technical Features

Axial-radial load capability: Supports combined radial and unidirectional axial loads; paired installation required for bidirectional axial loads
High-speed stability: Optimized raceway geometry and low-friction cage design enable smooth operation at elevated speeds

Structural & Environmental Adaptability

Tolerance Compatibility

Shaft: H7/k6
Housing: J7

Environmental Resistance

Standard version: Suitable for -20°C to 120°C operating temperatures
High-temperature variants: Up to 300°C with special heat-resistant materials
Corrosion-resistant options: Stainless steel available for harsh environments

Sealing Options

Open design (standard)
Optional 2RS (rubber seals) or ZZ (metal shields) for dust/moisture protection

Typical Applications

Industrial Machinery

Machine tool spindles: Provides precision and rigidity for high-speed machining
Gearboxes and reducers: Handles radial loads and torque transmission in heavy-duty systems
Pumps and compressors: Resists axial thrust from fluid pressure

Automotive & Transportation

Turbochargers: Supports high-speed rotation under extreme temperatures
Differential drives: Ensures smooth power transfer in vehicle drivetrains

Energy & Precision Equipment

Electric motor shafts: Optimized for low noise and vibration
Robotics: Enables precise positioning in robotic joints

Maintenance & Lubrication Guidelines

Lubrication

Grease: Lithium-based grease with 10%-15% cavity filling; synthetic grease recommended for high-temperature applications
Oil: Circulating oil systems preferred for continuous high-speed operation to enhance heat dissipation

Inspection Intervals

Monitor temperature and noise during operation
Replace lubricant every 2,000~5,000 hours depending on load and environment

Certifications & Compatibility

Standards compliance: Meets ISO 281 (load ratings) and ISO 15 (precision)
Cross-brand compatibility: Interchangeable with equivalent models from major manufacturers

Customization Options

Parameter Adjustments

Contact angle: 15° or 40° available via special order
Surface coatings: Phosphating or black oxide for corrosion resistance

Special Configurations

Full ceramic for non-magnetic or high-speed applications
Laser-etched part numbers for traceability

Summary

The 7307AC angular contact ball bearing combines high load capacity, precision, and adaptability, making it ideal for critical 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, heavy-load scenarios.

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Contact Person :	orlenda li
Tel :	+8613713334285

7307AC Angular Contact Ball Bearings Customizable High Speed Precision Bearings

7307AC Angular Contact Ball Bearings

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