7030 ACD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7030 ACD/P4ADT
Basic Information
System of measurement
Metric
Weight
8.35 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
150 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
225 mm
Outside diameter tolerance
-0.004mm to 0
Width
70 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
23.812 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
59625 lbf
Radial static load rating
81000 lbf
Limiting speed
11 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.
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7030 ACD/P4ADT Bearing Product Overview & Core Advantages
The 7030 ACD/P4ADT is a precision angular contact ball bearing configured as a Duplex Tandem (DT) matched set. Engineered for applications demanding exceptional accuracy and rigidity, this bearing excels at handling combined loads, primarily heavy thrust loads in one direction. Its P4A tolerance class ensures superior running accuracy, making it ideal for high-precision, high-reliability machinery where uncompromising performance is critical.
7030 ACD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7030 | Basic bearing designation indicating a 150 mm bore, 225 mm OD, and 70 mm width. |
| AC | Angular Contact design with a 25° contact angle for optimal thrust load capacity. |
| D | Duplex (Two bearings supplied as a set). |
| P4A | High precision tolerance class for superior dimensional and running accuracy. |
| DT | Matched arrangement: Duplex Tandem. This configuration stacks bearings to maximize axial load capacity in a single direction. |
7030 ACD/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The Duplex Tandem (DT) arrangement of two preloaded bearings creates an exceptionally rigid system capable of supporting very high unidirectional thrust loads and radial loads simultaneously.
- Precision Performance: Manufactured to P4A tolerance class with a 25° contact angle, this bearing delivers minimal runout and smooth, precise operation under high speeds.
- Optimized High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, contributing to stable operation at the high limiting speed of 11,000 rpm.
- Durability & Reliability: Components made from chrome steel and a precisely calculated ball complement (22 balls) ensure long service life and consistent performance under demanding conditions.
7030 ACD/P4ADT Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles (especially for milling and grinding)
- High-Speed Precision Spindles
- Industrial Pumps and Compressors
- Aerospace Positioning Systems
- Other machinery requiring high rigidity and exceptional axial load capacity.
