608-ZRZ/VK251
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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608-ZRZ/VK251 Bearing Product Overview & Core Advantages
The 608-ZRZ/VK251 is a single row deep groove ball bearing designed for reliable performance in compact applications. This metric bearing excels in handling radial loads and offers a versatile solution where space is limited. A key feature is its hybrid sealing configuration—one side shielded and one side sealed—providing effective contamination protection while maintaining smooth operation. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers consistent precision and is pre-lubricated with VK251 grease for immediate use across a broad temperature range.
608-ZRZ/VK251 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 608 | Standard series designation for a deep groove ball bearing with 8mm bore, 22mm OD, and 7mm width. |
| Z | One side features a shield (non-contact metal shield). |
| RZ | One side features a low-friction contact seal made from synthetic rubber (NBR). |
| /VK251 | Pre-lubricated with VK251 grease, suitable for a temperature range of -30°C to +120°C. |
608-ZRZ/VK251 Bearing Structural Features & Performance Benefits
Optimized Sealing for Versatility: The unique ZRZ configuration combines a metal shield on one side for high-speed capability and a contact seal on the other for superior contaminant exclusion. This dual approach extends bearing service life in diverse environments.
Robust Load Capacity: The deep groove raceway and chrome steel construction enable efficient handling of the specified radial dynamic load rating of 630 lbf, making it suitable for applications with significant radial forces.
Precision and Consistency: Built to ABEC 1 (ISO P0) tolerance class with a standard CN radial internal clearance, this bearing ensures reliable running accuracy and low vibration, which is critical for smooth operation.
Ready-to-Use Lubrication: The factory-applied VK251 grease provides long-term lubrication, supporting operation up to the limiting speed of 34,000 rpm and across the full specified temperature range, reducing maintenance needs.
608-ZRZ/VK251 Bearing Typical Application Areas
- Small Electric Motors: Ideal for use in compact fans, power tools, and drone motors.
- Office Automation Equipment: Commonly found in printers, scanners, and copiers.
- Precision Instruments: Suitable for medical devices, optical equipment, and measuring instruments.
- Consumer Electronics: Used in computer hard disk drives, gaming consoles, and small appliances.
