S7004 CE/HCP4BVG275
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7004 CE/HCP4BVG275
Basic Information
System of measurement
Metric
Weight
0.059 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
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:
$ 118.64
/ each
In Stock
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S7004 CE/HCP4BVG275 Bearing Product Overview & Core Advantages
The S7004 CE/HCP4BVG275 is a high-precision, single-row **Angular Contact Ball Bearing** engineered for demanding applications requiring exceptional speed capability and rigidity. Its primary advantage lies in its ability to efficiently support combined loads (radial and axial loads simultaneously) due to its defined **contact angle**. Manufactured to **P4 (ABEC-7) tolerance class**, this bearing guarantees superior running accuracy. The combination of a **Ceramic ball** material and a lightweight **Phenolic cage** enables very **high limiting speeds**, making it an ideal solution for high-performance spindles and precision machinery where reliability is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7004 | Denotes the bearing series and size (20mm bore, 42mm OD). |
| C | Specifies a 15° **contact angle**. |
| E | Indicates optimized internal design for high-speed operation. |
| HC | Signifies the use of **Hybrid Ceramic** balls (Silicon Nitride). |
| P4 | Identifies the **tolerance class** (ABEC-7), ensuring high precision. |
| BVG275 | Likely refers to a specific manufacturer's designation for preload, cage type, and/or lubrication. |
S7004 CE/HCP4BVG275 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of **Ceramic (Silicon Nitride) balls** significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially at **high speeds**. This also provides better resistance to electrical erosion.
- High-Speed Phenolic Cage: The lightweight and robust **Phenolic cage** offers excellent dimensional stability and low friction, which is crucial for achieving the high **limiting speed** of 65,000 rpm.
- Precision Ground Raceways: Manufactured to **P4 tolerance**, the raceways and geometry ensure minimal runout and vibration, leading to superior positional accuracy and smooth operation.
- Preload & High Rigidity: The bearing is supplied with **preload**, which eliminates internal clearance. This results in enhanced system **rigidity**, improved rotational accuracy, and superior dynamic response.
- Sealed & Lubricated: The **sealed** design with factory-applied lubrication protects against contamination and provides long-term, maintenance-free operation within the specified temperature range.
S7004 CE/HCP4BVG275 Bearing Typical Application Areas
This **precision angular contact ball bearing** is ideally suited for applications demanding high rotational accuracy and speed, such as:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- High-Frequency Motors and Spindles: Where minimal vibration and heat generation are critical.
- Precision Robotics: Arm joints and rotary actuators requiring high rigidity and responsiveness.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
