7034 ACD/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7034 ACD/P4ADBA
Basic Information
System of measurement
Metric
Weight
14 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
170 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
260 mm
Outside diameter tolerance
-0.004mm to 0
Width
84 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
26.988 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
73125 lbf
Radial static load rating
104625 lbf
Limiting speed
11 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
No drawings available at the moment, will be launched soon
Price:
$ 2583.6
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7034 ACD/P4ADBA Bearing Product Overview & Core Advantages
The 7034 ACD/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. This matched pair is arranged in a Back-to-Back (DB) configuration, providing superior stability and the ability to withstand combined radial and axial loads from both directions. Manufactured to P4A tolerance class, it ensures minimal runout and vibration, making it ideal for high-precision, high-rigidity spindles and other critical machinery components.
7034 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7034 ACD/P4ADBA provides detailed technical specifications:
- 7034: Basic bearing series, indicating a 170mm bore, 260mm OD, and 84mm width.
- A: Denotes a 25° contact angle, optimized for carrying significant axial loads.
- CD: Indicates a Duplex Back-to-Back (DB) arrangement of two matched bearings.
- P4A: Specifies the tolerance class, signifying very high precision for both dimensional and running accuracy.
- DBA: Confirms the Extra light preload (Class A) applied to the duplex set, minimizing friction and heat generation at high speeds.
7034 ACD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back design creates a rigid bearing system that effectively resists moment loads and supports heavy combined loads. With a dynamic load rating of 73,125 lbf, it offers exceptional longevity under demanding conditions.
- Precision & High-Speed Performance: Built to P4A precision standards and featuring a lightweight phenolic cage, this bearing achieves a high limiting speed of 11,000 rpm while maintaining smooth, quiet operation.
- Optimized Internal Geometry: The 25° contact angle is engineered to provide an optimal balance between radial and axial load-carrying capacity.
- Superior Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance.
7034 ACD/P4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is engineered for advanced machinery where accuracy and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motor Spindles.
- Industrial Pumps and Compressors requiring high shaft stability.
- Aerospace and Medical Equipment positioning systems.
