The 7204 BECBJ is a single-row angular contact ball bearing manufactured by SKF, designed to support combined loads (both radial and axial) while providing high precision and rigidity.
The suffix BECBJ indicates:
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B → 40° contact angle (optimal for high axial loads)
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E → Optimized internal design for enhanced performance
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CB → Normal internal clearance
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J → Pressed steel cage, ball-centered
This bearing is ideal for high-speed applications where rotational accuracy, durability, and stability are critical, such as machine tool spindles, compressors, precision electric motors, and robotics.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 7204 BECBJ |
| Bearing Type | Angular contact ball bearing (single row) |
| Inner Diameter (d) | 20 mm |
| Outer Diameter (D) | 47 mm |
| Width (B) | 14 mm |
| Contact Angle | 40° |
| Cage | Pressed steel (J) |
| Internal Clearance | Normal (CB) |
| Speed Limit (Grease) | ~13,000 rpm |
| Speed Limit (Oil) | ~18,000 rpm |
| Material | Hardened steel |
| Operating Temperature | -30 °C / +120 °C |
Key Features
✔ Supports high axial loads in one direction
✔ High rigidity and precision for dynamic applications
✔ Steel cage → Durable and wear-resistant
✔ Optimized internal geometry → Maximum efficiency and service life
✔ Suitable for paired mounting in DB, DF, or DT configurations
Typical Applications
🔹 Machine tools (spindles, rotary heads)
🔹 High-precision motors and pumps
🔹 Robotics and industrial automation
🔹 Compressors and lightweight turbines
🔹 High-speed instrumentation
📦 Choose the SKF 7204 BECBJ bearing for high performance, reliability, and precision in the most demanding mechanical applications! ⚙️
