S7007 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7007 ACEGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.14 kg
Tolerance class
P4A
Seal type
Sealed
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
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2498 lbf
Radial static load rating
1418 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
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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S7007 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S7007 ACEGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. As a universally matchable single bearing, it is designed to be paired with an identical unit to form a duplex set (DB/DF/DT), enabling it to accommodate combined loads (radial and axial) simultaneously. Its core advantages stem from a P4A super-precision tolerance class, an extra light preload (Class A), and the use of ceramic balls, which collectively deliver superior high-speed performance, reduced friction, and extended service life in critical machinery.
S7007 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series, 35mm bore, 62mm OD, 14mm width. |
| AC | 25° contact angle. |
| EGA | Pre-greased with a specific high-performance grease lubrication. |
| HC | Hybrid Ceramic: Features ceramic balls and steel rings. |
| P4A | Tolerance class equivalent to ABEC 7, with enhanced running accuracy requirements. |
S7007 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (41,000 rpm). It also provides inherent electrical insulation and superior resistance to wear.
- Phenolic Resin Cage: The lightweight and robust cage material ensures excellent dimensional stability at high speeds, contributing to smooth and quiet operation.
- Super-Precision P4A Tolerance: Manufactured to the tightest dimensional and running accuracy standards, this bearing ensures minimal vibration and exceptional positional accuracy in the spindle assembly.
- Optimized Grease & Sealing: Pre-lubricated with high-speed grease and featuring integral seals, the bearing offers long-term, maintenance-free operation within a wide temperature range (-30°C to 110°C).
- Universal Matchability (SU): As a universal matchable bearing, any two S7007 ACEGA/HCP4A bearings can be paired in any arrangement (back-to-back, face-to-face, or tandem) without selective mounting, simplifying installation and inventory.
S7007 ACEGA/HCP4A Bearing Typical Application Areas
This high-speed precision bearing is ideally suited for applications where extreme rotational accuracy and velocity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instruments: Measuring devices and laboratory equipment.
- High-Frequency Motors: Spindles for PCB drilling and dental handpieces.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units (APUs).
