608-2RSH/C2HLHT23
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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608-2RSH/C2HLHT23 Bearing Product Overview & Core Advantages
The 608-2RSH/C2HLHT23 is a metric single row deep groove ball bearing designed for high reliability in compact applications. Its primary advantage lies in its sealed construction (2RSH), which provides superior protection against contamination, and the specified C2 radial internal clearance, making it suitable for applications requiring precise running accuracy and minimal thermal expansion effects. This bearing is engineered to handle primarily radial loads efficiently and is characterized by its low friction and long service life, making it an ideal choice for high-speed operations up to 34,000 rpm.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 608 | Basic bearing series, indicating a standard metric deep groove ball bearing with an 8 mm bore, 22 mm OD, and 7 mm width. |
| 2RSH | Contact seals on both sides. The "RSH" suffix denotes high-performance nitrile rubber (NBR) seals with steel reinforcements, offering excellent exclusion of contaminants and retention of lubricant. |
| C2 | Radial internal clearance group. C2 is smaller than normal (CN) clearance, which is beneficial for applications requiring high precision and reduced noise and vibration. |
| HLHT23 | This suffix combination indicates the bearing is pre-lubricated with a specific high-temperature, high-speed grease. This factory-applied lubrication ensures immediate operation and long-term performance within the specified temperature range. |
608-2RSH/C2HLHT23 Bearing Structural Features & Performance Benefits
- Robust Sealing: The double-sided 2RSH contact seals are a key structural feature. They provide a high degree of protection against dust, moisture, and other contaminants, significantly enhancing bearing life in harsh environments. This makes the bearing effectively maintenance-free for its entire service life.
- Optimized Internal Geometry: The deep groove raceway and high-precision chrome steel components (rings, balls, cage) are manufactured to ABEC 1 / ISO P0 tolerance standards. This ensures smooth operation, low vibration, and consistent performance.
- High-Speed Capability: The combination of the deep groove design, precision cage, and specialized HLHT23 grease allows this bearing to achieve a high limiting speed of 34,000 rpm. The grease is formulated to maintain stability and lubricity at high rotational velocities.
- Precise Running Characteristics: The C2 radial clearance is tighter than standard, which minimizes internal play. This results in more precise shaft guidance, reduced noise levels, and is particularly advantageous in applications where thermal expansion is a concern.
608-2RSH/C2HLHT23 Bearing Typical Application Areas
The 608-2RSH/C2HLHT23 is versatile and finds use in a wide range of compact, high-speed machinery. Its sealed and pre-lubricated design makes it a preferred choice for:
- Electric Motors: Small fans, blowers, and precision spindle motors.
- Office Automation Equipment: Printers, scanners, and copiers.
- Medical Devices: Small pumps, dental handpieces, and laboratory equipment.
- Power Tools: High-speed drills, grinders, and sanders.
- Food Processing Machinery: Equipment requiring sealed bearings for hygiene and washdown conditions.
