S7012 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7012 ACE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.8 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5850 lbf
Radial static load rating
5512 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Grease
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
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In Stock
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S7012 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7012 ACE/HCP4ADGA is a super-precision angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. As a universal matchable (SU) bearing supplied in a set of two, it is designed to accommodate combined radial and axial loads simultaneously. Its construction with a phenolic cage and ceramic balls enables exceptional limiting speeds and thermal stability, making it ideal for high-precision spindles requiring extreme accuracy and reliability.
S7012 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7012 ACE/HCP4ADGA provides detailed technical specifications:
- S70: Super-precision angular contact ball bearing series
- 12: Bore diameter code (60 mm)
- ACE: Specific internal design and contact angle (25°)
- HC: Hybrid Ceramic (Steel rings with ceramic balls)
- P4A: Tolerance class P4A, denoting ultra-precision running accuracy
- DGA: Preload designation: Extra light (Class A)
S7012 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and universal matchable (SU) design of the two-bearing set provide superior rigidity and the ability to handle significant combined loads.
- Exceptional High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 31,000 rpm. This hybrid construction also minimizes heat generation.
- Ultra-Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for achieving the highest levels of rotational accuracy.
- Pre-Lubricated & Sealed: The bearing is pre-lubricated with grease and features integral seals, offering a maintenance-free solution within its specified temperature range.
S7012 ACE/HCP4ADGA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing equipment.
- High-Frequency Motors and Turbochargers.
- Other machinery requiring ultra-precision, high-speed, and high-rigidity bearing solutions.
