7215 ACD/P4ATGAGMM1
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7215 ACD/P4ATGAGMM1
Basic Information
System of measurement
Metric
Weight
3.63 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.004mm to 0
Width
75 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
33300 lbf
Radial static load rating
39600 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7215 ACD/P4ATGAGMM1 Bearing Product Overview & Core Advantages
The 7215 ACD/P4ATGAGMM1 is a premium double row angular contact ball bearing engineered for applications demanding exceptional precision and reliability. This precision bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and bidirectional axial loads. Its compact double-row design offers high rigidity and stable rotational accuracy, making it ideal for high-speed spindles and other precision machinery. Manufactured to a P4A tolerance class and featuring a universal matchable (SU) design, it ensures superior performance in the most demanding operational environments.
7215 ACD/P4ATGAGMM1 Bearing Model Code Explained, Specifications & Naming Convention
The model number 7215 ACD/P4ATGAGMM1 is decoded as follows:
- 7215: Basic series designation (75mm bore, 130mm OD).
- ACD: Double Row Angular Contact ball bearing with a 25° contact angle.
- P4A: High Precision Tolerance Class, exceeding ABEC-7/ISO P4 standards.
- T: Cage material is Phenolic (fiberglass reinforced).
- GA: Universal Matchable (SU) arrangement, allowing for flexible mounting in sets.
- GMM1: Specific internal design and grease lubrication specification.
7215 ACD/P4ATGAGMM1 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row construction provides superior radial and axial stiffness, enabling the bearing to handle combined loads effectively. The optimized contact angle of 25° ensures excellent performance under complex loading conditions.
- Precision & Speed: Manufactured to P4A tolerance standards, this bearing guarantees minimal runout and vibration. The lightweight phenolic cage contributes to lower inertia, facilitating high-speed operation up to 22,000 rpm.
- Matched Set Flexibility: The Universal Matchable (SU) designation means bearings can be mounted in sets (typically 3) without selective assembly, simplifying installation and ensuring preload consistency for maximum system rigidity.
- Material & Lubrication: Components are made from high-grade chrome steel for durability and long service life. The bearing is pre-lubricated with grease, suitable for a standard operating temperature range of -30°C to 110°C.
7215 ACD/P4ATGAGMM1 Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key sectors include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Industrial Pumps & Compressors
- High-Frequency Motors and Spindles
- Robotics and Automation Equipment
- Medical and Laboratory Instrumentation
