707 ACE/P4A
Miniature Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
707 ACE/P4A
Basic Information
System of measurement
Metric
Weight
0.007 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.005mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.572 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
418 lbf
Radial static load rating
140 lbf
Limiting speed
175 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:
$ 101.67
/ each
In Stock
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707 ACE/P4A Bearing Product Overview & Core Advantages
The 707 ACE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Positioned in the P4 (ABEC-7) tolerance class, it is designed to handle significant axial loads in one direction while simultaneously supporting radial loads. Its compact design, featuring a 7 mm bore and 6 mm width, makes it ideal for space-constrained, high-performance assemblies. The bearing comes prelubricated and is available with a preload for enhanced rigidity and immediate operational readiness.
707 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 707 ACE/P4A provides detailed technical specifications through its suffixes:
- 707: Basic bearing series, indicating a metric, light series angular contact bearing with a 7mm bore.
- ACE: Designates specific internal design features, including the 25° contact angle and optimized internal geometry for combined loads.
- P4A: Indicates the tolerance class. P4 is equivalent to ABEC-7, denoting very high precision. The 'A' suffix often specifies a specific preload category for optimal stiffness and running accuracy.
707 ACE/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 (ABEC-7) tolerances, this bearing ensures minimal runout and vibration. The application of preload eliminates internal clearance, resulting in high system rigidity and precise shaft positioning, which is critical for spindles and precision instruments.
- Optimized Load Capacity: The 25° contact angle is engineered to efficiently support combined radial and axial loads, making it suitable for applications with substantial thrust requirements.
- High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 175,000 rpm.
- Durable Construction: Components made from chrome steel provide excellent wear resistance and fatigue life, ensuring long-term reliability in demanding conditions.
707 ACE/P4A Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Precision Drives
- Robotic Arms and Actuators
- Medical and Dental Handpieces
- Optical and Instrumentation Rotational Stages
