7218 BECCM
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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7218 BECCM Bearing Product Overview & Core Advantages
The 7218 BECCM is a **high-precision angular contact ball bearing** engineered for demanding applications requiring exceptional **rotational accuracy** and **rigidity**. This **single row bearing** features a 40° **contact angle**, optimized for handling significant **combined loads**—simultaneously managing substantial radial forces and unidirectional axial thrust. Manufactured to **P6 (ABEC-3) tolerance class**, it guarantees superior running precision and is pre-lubricated for immediate operation. Its robust construction ensures **high-speed capability** and reliable performance in precision machinery.
7218 BECCM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7218 | Standard bearing series designation indicating a 90 mm bore and 160 mm outside diameter. |
| BE | Designates a **40° contact angle** and an optimized internal geometry for high axial load capacity. |
| CC | Indicates the bearing is manufactured to a **P6 tolerance class** (ABEC-3), ensuring high dimensional and running accuracy. |
| M | Signifies a **brass cage (machined)**, which provides high strength, excellent guidance, and stability at high speeds. |
7218 BECCM Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 40° contact angle and precisely calculated raceway curvature are engineered for maximum **axial load rating** and **stiffness**, making it ideal for applications with high thrust loads.
High-Speed Machined Brass Cage: The **brass cage (M)** ensures exceptional dimensional stability and low wear at the **limiting speed** of 5,000 rpm, contributing to smooth operation and long service life.
Superior Material & Precision: Constructed from **chrome steel** for both rings and balls, the bearing offers high fatigue life. The **P6 tolerance class** guarantees minimal runout and vibration for precise positioning.
Pre-Lubricated & Ready-to-Use: The bearing comes lubricated from the factory, facilitating easy installation and providing immediate protection against wear within its specified **temperature range** of -30° to 110 °C.
7218 BECCM Bearing Typical Application Areas
- Machine Tool Spindles: Provides high rigidity and accuracy for milling, grinding, and turning centers.
- High-Frequency Motors & Spindles: Suitable for applications requiring high rotational speeds and precise torque transmission.
- Precision Gearboxes: Handles combined radial and axial loads in industrial transmission systems.
- Pumps and Compressors: Offers reliable performance in equipment with significant axial thrust components.
