624
600 Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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624 Bearing Product Overview & Core Advantages
The 624 bearing is a metric single row deep groove ball bearing designed for reliable performance in compact applications. Engineered with chrome steel rings and balls for durability, this bearing excels at handling radial loads with high efficiency. Its open design allows for versatile lubrication options, while the stainless steel cage ensures stable operation. With an ABEC1 tolerance class and standard internal clearance, it provides a cost-effective solution for applications requiring consistent performance and high limiting speeds.
624 Bearing Model Code Explained, Specifications & Naming Convention
| Code | Technical Meaning |
|---|---|
| 6 | Single row deep groove ball bearing series |
| 24 | Bore diameter code (4mm) |
| Open | No seals or shields, enabling high-speed operation and custom lubrication |
| MC3 | Standard radial internal clearance group (0.002-0.013mm) |
624 Bearing Structural Features & Performance Benefits
Optimized Load Distribution: The deep groove raceway and 7 precision balls work in conjunction to provide excellent radial load capacity, with a dynamic rating of 249 lbf and static rating of 88 lbf.
High-Speed Capability: The stainless steel cage maintains ball alignment and reduces friction, enabling operation at limiting speeds up to 40,000 rpm. The open construction minimizes heat generation during high-speed rotation.
Precision Engineering: Manufactured to ABEC1 tolerance standards with precise dimensional control (bore diameter tolerance: -0.008mm to 0), ensuring consistent performance and easy installation.
Material Excellence: Constructed from chrome steel rings and balls for superior hardness and wear resistance, complemented by a stainless steel cage that provides corrosion resistance and mechanical stability.
624 Bearing Typical Application Areas
- Small electric motors and miniature DC motors
- Precision instruments and laboratory equipment
- Office automation devices including printers and scanners
- Medical devices and dental handpieces
- Robotics and small automation systems
- Computer cooling fans and small blowers
- Radio-controlled models and hobby applications
