7020 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7020 ACE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
2.25 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
16875 lbf
Limiting speed
16 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 924.88
/ each
In Stock
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7020 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7020 ACE/HCP4ADGA is a premium precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered as a universal matchable (SU) bearing, it can be paired with another identical bearing to form a preloaded duplex set, delivering superior rigidity and rotational accuracy. Its ceramic balls and P4A tolerance class make it ideal for high-speed operation and applications where minimal runout and high reliability are critical. This bearing is pre-lubricated and capable of handling combined radial and axial loads efficiently.
7020 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and specific internal design optimized for high-speed, high-precision applications. |
| HC | Refers to the Hybrid Ceramic construction, featuring ceramic balls for reduced weight, lower friction, and enhanced speed capability. |
| P4A | Denotes an ultra-precision tolerance class with very tight running accuracy, surpassing ABEC-7 standards. |
| DGA | Signifies a Universal Matchable (SU) bearing designed for "back-to-back" or "face-to-face" mounting to create a preloaded set. |
7020 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls within a steel ring structure significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (up to 16,000 rpm). This construction also offers improved resistance to wear and electrical arcing.
- High Rigidity & Load Capacity: The 25° contact angle and universal matchable (SU) design allow the bearing to be preloaded in pairs, resulting in a system with exceptional stiffness that can support significant combined radial and axial loads.
- Precision & Longevity: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures smooth, quiet operation and excellent guidance for the ceramic balls, contributing to a long service life and consistent performance in high-speed environments.
- Optimized for Precision Mounting: The specified bore and outside diameter tolerances ensure a precise fit, which is crucial for maintaining system accuracy and performance in demanding applications.
7020 ACE/HCP4ADGA Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Advanced Medical and Dental Equipment
- Aerospace Actuation and Control Systems
- Semiconductor Manufacturing Equipment
