7007 ACD/P4ATBTD
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 ACD/P4ATBTD
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
Heavy / Class D
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/P4ATBTD Bearing Product Overview & Core Advantages
The 7007 ACD/P4ATBTD is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This bearing features a triplex back-to-back (TBT) matched arrangement and a heavy preload (Class D), delivering superior system stiffness and rotational precision. Its design is optimized to handle combined loads—significant radial and axial loads simultaneously—making it ideal for high-performance machinery where positional accuracy and minimal deflection are critical. Manufactured to P4A tolerance class, it ensures consistent, high-precision operation.
7007 ACD/P4ATBTD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards for superior running accuracy. |
| TBT | Triplex Back-to-Back matched set arrangement. Three bearings are supplied as a pre-matched set. |
| D | Heavy preload classification, maximizing system rigidity. |
7007 ACD/P4ATBTD Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Stability: The triplex back-to-back (TBT) arrangement with a heavy preload creates an extremely rigid bearing system that effectively resists moment loads and minimizes shaft deflection under heavy cutting forces or operational stresses.
- High Load Capacity: The 25° contact angle and robust construction enable high radial dynamic load rating (7312 lbf) and static load rating (6075 lbf), providing reliable performance under combined loads.
- Precision and High-Speed Capability: The P4A tolerance class guarantees precise internal geometry and smooth operation. The lightweight phenolic cage contributes to lower inertia and stable operation at high speeds, with a limiting speed of 56,000 rpm.
- Durability and Reliability: Components made from chrome steel offer high wear resistance and durability. The bearing comes lubricated for immediate use and operates within a temperature range of -30°C to 110°C.
7007 ACD/P4ATBTD Bearing Typical Application Areas
This bearing is engineered for high-precision, high-stiffness applications, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads where extreme rigidity and accuracy are non-negotiable.
- High-Speed Precision Drives: In applications such as high-frequency motors and precision spindles.
- Industrial Robotics: For critical joints and arm assemblies requiring high moment stiffness and positional accuracy.
- Aerospace Actuation Systems: Where reliable performance under combined loads in compact spaces is essential.
