7032 ACD/P4AQBCB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7032 ACD/P4AQBCB
Basic Information
System of measurement
Metric
Weight
20.6 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
160 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
240 mm
Outside diameter tolerance
-0.004mm to 0
Width
152 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
25.4 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
109800 lbf
Radial static load rating
183375 lbf
Limiting speed
7.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7032 ACD/P4AQBCB Bearing Product Overview & Core Advantages
The 7032 ACD/P4AQBCB is a precision quadruplex matched bearing set designed for demanding applications requiring exceptional rigidity and accuracy. This angular contact ball bearing configuration features a back-to-back (QBC) arrangement of four bearings, enabling it to withstand combined radial and axial loads simultaneously. Manufactured to P4A tolerance class with a light preload (Class B), it delivers superior running accuracy, high system stiffness, and reliable performance in high-precision machinery. Its open design allows for customized lubrication schemes to optimize performance.
7032 ACD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7032 | Basic bearing series, defining the standard boundary dimensions (Bore: 160mm, OD: 240mm, Width: 38mm per bearing). |
| ACD | Angular Contact Design with a 25° contact angle, optimized for carrying significant axial loads. |
| P4A | Indicates a high precision tolerance class, providing extremely tight dimensional and running accuracy limits. |
| QBC | Signifies a Quadruplex Back-to-Back matched set. This arrangement provides high moment stiffness and stability. |
| B | Denotes a Light Preload (Class B), which minimizes deflection and ensures precise shaft positioning without excessive friction or heat generation. |
7032 ACD/P4AQBCB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, which is critical for maintaining precision under heavy combined loads.
- Superior Load Capacity: The 25° contact angle and the use of four bearings in a set significantly increase the axial and radial load-carrying capacity, making it suitable for applications with demanding load requirements.
- Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, contributing to the high accuracy of the overall system. The light preload eliminates internal clearance for precise shaft rotation.
- Optimized High-Speed Operation: The phenolic cage is lightweight and possesses excellent sliding properties, contributing to lower friction and stable operation at the specified limiting speed.
- Robust Material Construction: Made from chrome steel for both rings and balls, the bearing offers high durability, wear resistance, and a long operational lifespan.
7032 ACD/P4AQBCB Bearing Typical Application Areas
This precision matched bearing set is engineered for high-performance applications where extreme rigidity, accuracy, and reliability are paramount. Key industries and machinery include:
- High-Precision Machine Tool Spindles (e.g., grinding, milling, and turning centers)
- High-Speed Machining Centers
- Industrial Pumps and Compressors
- Precision Gearboxes and Drives
- Aerospace and Defense Positioning Systems
