7002 ACD/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7002 ACD/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.06 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1814 lbf
Radial static load rating
1046 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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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7002 ACD/P4ADBA Bearing Product Overview & Core Advantages
The 7002 ACD/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a back-to-back (DB) matched arrangement, providing superior stability and the ability to withstand combined radial and axial loads. With its extra light preload (Class A) and optimized 25° contact angle, it delivers high running accuracy and is ideally suited for high-speed, high-precision machinery where uncompromising performance is critical.
7002 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7002 ACD/P4ADBA provides detailed technical specifications:
- 7002: Basic bearing designation (15mm bore, 32mm OD, 18mm width)
- AC: Angular Contact design
- D: Duplex (Two bearings supplied as a matched set)
- P4A: High precision tolerance class exceeding ABEC 7 standards
- DB: Back-to-Back mounting arrangement
- A: Extra Light Preload (Class A)
7002 ACD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide effective spread, significantly increasing moment rigidity and operational stability under complex loading conditions.
- Superior Load Capacity: Engineered with a 25° contact angle, this bearing efficiently handles combined radial and axial loads from both directions, making it suitable for applications with significant thrust requirements.
- Precision & High-Speed Performance: The P4A tolerance class ensures minimal runout and vibration. Combined with the lightweight, high-strength phenolic resin cage, it enables smooth operation at limiting speeds up to 95,000 rpm.
- Optimized Material Selection: Manufactured from high-grade chrome steel for rings and balls, the bearing offers excellent durability and fatigue life. The phenolic cage contributes to lower friction and is suitable for high-speed applications.
7002 ACD/P4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is ideally deployed in:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Spindles in PCB drilling and routing machines
- Precision Gearboxes and transmission systems
- Robotic Arm Joints and precision automation equipment
- Medical and Dental Handpiece drives
