7004 CE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7004 CE/HCP4BVG275
Basic Information
System of measurement
Metric
Weight
0.056 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
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1667 lbf
Radial static load rating
754 lbf
Limiting speed
65 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 98.96
/ each
In Stock
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7004 CE/HCP4BVG275 Bearing Product Overview & Core Advantages
The 7004 CE/HCP4BVG275 is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single-row bearing features a 15° contact angle and is supplied with a preload, delivering superior running accuracy and high rigidity. Its optimized design, incorporating ceramic balls and a phenolic cage, enables outstanding high-speed capabilities and reliable operation under combined loads. As a P4 (ABEC-7) tolerance class component, it is ideal for high-reliability, precision machinery.
7004 CE/HCP4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
The model number 7004 CE/HCP4BVG275 provides detailed technical specifications through its suffixes:
- 7004: Basic series number indicating a 20mm bore, 42mm OD, and 12mm width.
- C: Denotes a 15° contact angle.
- E: Indicates an optimized internal design for enhanced performance.
- HCP4: Specifies the P4 (ABEC-7) tolerance class for ultra-precision.
- B: Indicates a 40° contact angle (Note: This may represent a specific internal configuration variant).
- VG: Signifies the bearing is lubricated.
- 275: A manufacturer-specific code, often relating to preload level or special grouping.
7004 CE/HCP4BVG275 Bearing Structural Features & Performance Benefits
- High Rigidity and Running Accuracy: The application of a preload eliminates internal clearance, resulting in significantly increased stiffness and precise shaft positioning, which is critical for machine tool spindles.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage reduces centrifugal forces and friction, allowing for a high limiting speed of 65,000 rpm.
- Excellent Load Capacity: The angular contact design efficiently supports combined radial and axial loads simultaneously, with a dynamic load rating of 1667 lbf.
- Extended Service Life and Reliability: Ceramic balls offer superior wear resistance and lower thermal expansion compared to steel, contributing to a longer operational lifespan and consistent performance within a temperature range of -30° to 110 °C.
7004 CE/HCP4BVG275 Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and servo motors requiring high rigidity and accuracy.
- High-Frequency Spindles: PCB drilling and routing machinery.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
