7030 CD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7030 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
23.812 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
63225 lbf
Radial static load rating
85500 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 CD/P4ADT Bearing Product Overview & Core Advantages
The 7030 CD/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex tandem (DT) arrangement consists of two matched bearings, preloaded to deliver superior high rigidity and handle significant combined loads. Manufactured to P4A tolerance class, it ensures minimal runout and is ideal for high-precision, high-reliability systems. Its optimized design supports high rotational accuracy and stable performance under challenging operational conditions.
7030 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7030 | Standard bearing series designation, indicating bearing dimensions (150mm bore, 225mm OD, 70mm width). |
| C | Specifies a 15° contact angle, optimized for high axial load capacity. |
| D | Indicates the bearing is supplied as a duplex pair. |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy requirements. |
| DT | Signifies the Duplex Tandem arrangement, where two bearings are mounted to increase axial load capacity in one direction. |
7030 CD/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem arrangement and preload create an exceptionally stiff bearing system, capable of handling heavy combined loads (radial and axial) simultaneously. The 15° contact angle is specifically chosen for superior axial load support.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees high running accuracy and minimal vibration for precision machinery.
- High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 11,000 rpm. The open design allows for efficient lubrication management.
- Durable Construction: Components made from chrome steel provide high hardness and fatigue resistance, ensuring a long operational life under heavy loads.
7030 CD/P4ADT Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring utmost precision and rigidity.
- Precision Gearboxes: In industrial robotics and aerospace actuation systems.
- High-Frequency Motors and Spindles: Where high rotational speeds and accuracy are critical.
- Medical and Laboratory Equipment: Such as centrifuges and advanced imaging systems.
