7202 ACD/P4ADBB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7202 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.086 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
35 mm
Outside diameter tolerance
-0.004mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2632 lbf
Radial static load rating
1440 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7202 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7202 ACD/P4ADBB is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This duplex back-to-back (DB) arrangement provides superior stiffness and the ability to withstand combined loads, including significant radial and bidirectional axial forces. Manufactured to P4A tolerance class and featuring a light preload (Class B), it ensures high running accuracy and stable performance in high-speed operations, making it ideal for high-precision machinery and high-rigidity systems.
7202 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7202 | Basic bearing series, indicating a 15mm bore, 35mm OD, and 22mm width. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Duplex (Two bearings as a set). |
| /P4A | High precision tolerance class (P4A), exceeding ABEC 7 standards for minimal runout and vibration. |
| DBB | Duplex Back-to-Back arrangement, providing high moment rigidity. |
7202 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and supports substantial combined radial and axial loads from both directions.
- Precision Performance: Manufactured to P4A tolerance class with a light preload, this bearing minimizes axial and radial runout, ensuring high positional accuracy and smooth operation.
- Optimized High-Speed Operation: The phenolic resin cage offers low weight and excellent high-speed characteristics, contributing to a limiting speed of 95,000 rpm. The standard lubrication is suitable for the specified operating range.
- Superior Material Construction: Components made from chrome steel provide high hardness, wear resistance, and long service life under demanding conditions.
7202 ACD/P4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision and high-speed applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
