6004-2ZNR Q66
6000 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6004-2ZNR Q66 Bearing Product Overview & Core Advantages
The 6004-2ZNR Q66 is a single row deep groove ball bearing engineered for exceptional radial load capacity and operational reliability. This precision bearing features integral shielded protection and a snap ring groove on its outer ring, enabling simplified axial location within a housing. Its high-quality chrome steel construction ensures durability and consistent performance, making it an ideal component for applications demanding high reliability and long service life.
6004-2ZNR Q66 Bearing Model Code Explained, Specifications & Naming Convention
- 6004: Basic designation indicating a metric, single row deep groove ball bearing with a 20mm bore, 42mm OD, and 12mm width.
- 2Z: Signifies that the bearing is equipped with non-contact shields on both sides, providing effective protection against contaminants while minimizing friction.
- NR: Denotes that the outer ring has a snap ring groove, allowing for secure and simplified axial positioning without the need for complex housing shoulders or lock nuts.
- Q66: A manufacturer-specific suffix, often indicating a specific internal clearance (CN) or a special quality/selection process.
6004-2ZNR Q66 Bearing Structural Features & Performance Benefits
The bearing's single row deep groove raceway geometry is optimized for handling significant radial loads. The use of chrome steel for all critical components (rings, balls, cage) provides high hardness and wear resistance. The non-contact shields (2Z) effectively seal the bearing from dust and debris without significantly increasing torque or heat generation, contributing to its high limiting speed of 17,000 rpm. The inclusion of the snap ring groove (NR) enhances design flexibility and reduces assembly costs by providing a positive locating feature. Manufactured to ABEC 1 / ISO P0 tolerance class, it offers reliable performance for a wide range of industrial applications.
6004-2ZNR Q66 Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
