7036 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7036 ACD/P4A Bearing Product Overview & Core Advantages
The 7036 ACD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rigidity. Designed to accommodate primarily axial loads in one direction, as well as combined radial and axial loads, this bearing features a 25° contact angle for optimal load distribution. Its P4 (ABEC-7) tolerance class ensures exceptional running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing is preloaded to eliminate internal clearance, providing enhanced system stiffness and rotational accuracy right from installation.
7036 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7036 | Basic bearing series, defining the standard dimensions: 180mm bore, 280mm outside diameter, 46mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high-capacity internal design, typically featuring larger and/or more balls. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific dimensional and running accuracy requirements. The 'A' suffix often denotes a controlled contact angle and preload. |
7036 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The angular contact design and application of preload result in a very stiff bearing assembly, critical for minimizing deflection under load in precision spindles. The P4 tolerance class guarantees tight control over all dimensions and runout.
- Optimized Load Capacity: With a 25° contact angle and a high-capacity internal geometry (denoted by suffix 'D'), this bearing excels at handling high axial loads in one direction and combined loads. The radial dynamic load rating of 51,525 lbf and static load rating of 61,875 lbf confirm its robust performance.
- High-Speed Capability: The lightweight and durable phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 6,300 rpm. The open design facilitates efficient lubrication and cooling.
- Premium Materials: Manufactured from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and a long operational life under demanding conditions.
7036 ACD/P4A Bearing Typical Application Areas
The 7036 ACD/P4A is specified for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: Applications in PCB drilling, semiconductor manufacturing, and precision grinding.
- High-Frequency Motors: Spindles for electric motors operating at high rotational speeds.
- Robotics: High-accuracy joints and rotary actuators.
