7009 CD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7009 CD/P4ADT
Basic Information
System of measurement
Metric
Weight
0.47 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
75 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10530 lbf
Radial static load rating
10125 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7009 CD/P4ADT Bearing Product Overview & Core Advantages
The 7009 CD/P4ADT is a precision angular contact ball bearing supplied as a duplex tandem (DT) matched pair. Engineered for high-precision applications, this bearing is preloaded and manufactured to P4A tolerance class for exceptional running accuracy. Its primary advantage lies in its ability to handle significant combined loads (radial and axial) in one direction, making it an ideal, compact solution for high-rigidity spindles and systems demanding maximum stiffness and positional accuracy.
7009 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing designation indicating a 45 mm bore, 75 mm OD, and 32 mm width. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| D | Indicates the bearing is part of a duplex tandem (DT) preloaded pair. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy requirements. |
| Open | Seal type: The bearing is supplied without seals or shields, allowing for customized lubrication schemes in controlled environments. |
7009 CD/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem arrangement combines two bearings to create a single, highly rigid unit capable of supporting high axial loads in one direction. The 15° contact angle is ideal for this configuration, balancing speed and load capabilities.
- Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Optimized High-Speed Design: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 46,000 rpm. The open design facilitates efficient air circulation and advanced lubrication methods for thermal management.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and long service life under demanding conditions.
7009 CD/P4ADT Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Spindles in PCB drilling and routing machines
- High-Frequency Motors and Spindle Drives
- Other applications requiring high rigidity, precise axial positioning, and high-speed capability.
