7004 ACE/P4BVG275
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7004 ACE/P4BVG275
Basic Information
System of measurement
Metric
Weight
0.064 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
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:
$ 98.46
/ each
In Stock
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7004 ACE/P4BVG275 Bearing Product Overview & Core Advantages
The 7004 ACE/P4BVG275 is a precision angular contact ball bearing designed for high-performance applications requiring exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a preload, enabling it to handle combined radial and axial loads simultaneously with high rigidity. Manufactured to P4 (ABEC-7) tolerance class, it guarantees superior running accuracy, making it ideal for high-speed spindles and other precision machinery.
7004 ACE/P4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
The model number 7004 ACE/P4BVG275 can be broken down as follows:
- 7004: Basic series number, indicating a metric bearing with a 20mm bore, 42mm outside diameter, and 12mm width.
- ACE: Designates specific internal design features, including the 25° contact angle and a phenolic resin cage.
- P4: Indicates the tolerance class is P4 (equivalent to ABEC-7), signifying very high precision.
- BVG275: Specifies the preload level and that the bearing is lubricated with a specific high-performance grease suitable for the designated temperature range.
7004 ACE/P4BVG275 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 25° contact angle and application of preload eliminate internal clearance, resulting in a stiff bearing assembly that minimizes deflection under load and ensures precise shaft positioning, critical for high-speed and high-accuracy applications.
- Optimized for High-Speed Operation: The lightweight phenolic resin cage is engineered for stability and low friction at high rotational speeds, contributing to the bearing's impressive limiting speed of 48,000 rpm. The optimized internal geometry further enhances high-speed performance.
- Superior Load Capacity: The angular contact design allows the bearing to efficiently support significant combined loads (radial and axial). With a dynamic load rating of 1609 lbf and a static load rating of 731 lbf, it offers reliable performance in demanding conditions.
- Ready-to-Install and Lubricated: The bearing comes pre-lubricated with a high-quality grease, simplifying installation and ensuring immediate, reliable operation within its specified temperature range of -30°C to 110°C.
7004 ACE/P4BVG275 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for applications where high speed, high rigidity, and exceptional accuracy are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Instruments: Measuring devices, optical scanners, and laboratory equipment.
- High-Speed Motors and Pumps: Where minimal runout and stable operation are required.
- Robotics and Automation: Joints and drive systems requiring precise motion control.
