S7004 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7004 ACE/P4A
Basic Information
System of measurement
Metric
Weight
0.067 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.006mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1609 lbf
Radial static load rating
731 lbf
Limiting speed
48 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 119.26
/ each
In Stock
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S7004 ACE/P4A Bearing Product Overview & Core Advantages
The S7004 ACE/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a preload, enabling it to handle significant combined loads (radial and axial) simultaneously. Manufactured to P4 (ABEC-7) tolerance class, it guarantees high running accuracy and is pre-lubricated for immediate use. Its compact design, with a 20 mm bore and 12 mm width, makes it ideal for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
S7004 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
The S7004 ACE/P4A model code provides detailed technical specifications:
- S7004: Basic bearing series designation, indicating a 20mm bore and 42mm outside diameter.
- ACE: A specific internal design code from the manufacturer, typically relating to internal geometry, preload level, and performance characteristics.
- P4A: Denotes the tolerance class. P4 is equivalent to ABEC-7, indicating a very high precision grade for superior running accuracy and low vibration.
S7004 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 25° contact angle and application of preload provide high axial and radial stiffness, ensuring precise shaft positioning and reduced deflection under load. The P4 precision guarantees minimal running vibration and exceptional dimensional stability.
- Superior Load Capacity: Engineered to support combined loads effectively, with a dynamic load rating of 1609 lbf and a static load rating of 731 lbf, making it robust for demanding applications.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction at high speeds, contributing to a high limiting speed of 48,000 rpm.
- Sealed and Lubricated for Longevity: The bearing is sealed to protect against contamination and is pre-lubricated with a high-performance grease suitable for a temperature range of -30°C to 110°C, offering long-term, maintenance-free operation.
S7004 ACE/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Electric Motors
- Precision Grinding Spindles
- Medical and Dental Handpieces
- Aerospace Instrumentation
- High-Frequency Spindles
