7007 ACD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 ACD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
0.46 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
42 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7312 lbf
Radial static load rating
6075 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
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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7007 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 7007 ACD/P4ATBTB is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. This triplex back-to-back (TBT) matched set is preloaded to Light / Class B, delivering superior stiffness and stability under combined loads (radial and axial). Manufactured to an ultra-precise P4A tolerance class, it is engineered for high-performance scenarios requiring minimal runout and smooth operation at elevated speeds. Its compact design integrates three bearings into a single, highly rigid unit.
7007 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series, defining the bearing dimensions (35mm bore, 62mm OD, 14mm width per bearing). |
| ACD | Angular Contact design with a 25° contact angle, optimized for carrying high axial loads. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy requirements beyond standard P4. |
| TBT | Specifies the matched arrangement as Triplex Back-to-Back, consisting of three bearings mounted together. |
7007 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The triplex back-to-back (TBT) arrangement and light preload create an extremely rigid bearing system that effectively resists moment loads and minimizes shaft deflection, ensuring precise positioning.
- Superior Load Capacity: The 25° contact angle and triple-bearing configuration provide excellent capability for handling combined radial and axial loads simultaneously.
- High-Speed Performance: The phenolic cage offers low weight and excellent sliding properties, contributing to stable operation and a high limiting speed of 56,000 rpm. The open design allows for efficient lubrication management.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees high running accuracy and low vibration levels.
- Durable Construction: Components made from chrome steel provide high fatigue life and wear resistance, suitable for a wide temperature range from -30°C to 110°C.
7007 ACD/P4ATBTB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-rigidity machinery, including:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-Frequency Spindles
- Precision Gearboxes
- Robotic Drives and Actuators
- Aerospace Control Systems
