623-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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623-2Z Bearing Product Overview & Core Advantages
The 623-2Z is a metric single row deep groove ball bearing designed for high-performance applications requiring compact design and reliable operation. This shielded bearing excels in handling radial loads and is pre-lubricated with grease for long service life. Its P6 tolerance class ensures high running accuracy, making it suitable for precision mechanisms where space is limited and operational reliability is critical.
Model Code Breakdown
- 623: Basic model number denoting a deep groove ball bearing with a 3mm bore, 10mm OD, and 4mm width.
- -2Z: Signifies that the bearing is equipped with non-contact shields on both sides. These shields protect against contamination from solid particles while minimizing friction, allowing for higher limiting speeds compared to contact seals.
623-2Z Bearing Structural Features & Performance Benefits
Robust Construction for High Reliability: Manufactured from chrome steel rings and balls with a stainless steel cage, the 623-2Z offers excellent durability and corrosion resistance. The deep groove raceway geometry is optimized for efficient radial load distribution.
Optimized for Speed and Longevity: The combination of non-contact shields (2Z) and pre-applied grease lubrication enables a high limiting speed of 60,000 rpm. This setup reduces friction and heat generation, contributing to extended bearing life and consistent performance within a wide temperature range of -30°C to 120°C.
Precision and Stability: Built to P6 tolerance and standard CN radial internal clearance, this bearing provides precise running accuracy and stable operation, minimizing vibration and noise in sensitive applications.
623-2Z Bearing Typical Application Areas
The 623-2Z is ideally suited for compact, high-speed devices across various industries, including:
- Small Precision Motors (e.g., in drones, miniature fans)
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation and Control Systems
- Textile Machinery Spindles
