6904zz
6900 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6904zz Bearing Product Overview & Core Advantages
The 6904zz is a single row deep groove ball bearing featuring integral shielded construction. Engineered for radial load applications, this metric bearing offers a compact design with a 20mm bore, 37mm outside diameter, and a 9mm width. Manufactured to ABEC-1 precision tolerances, it ensures reliable performance in a wide range of industrial applications. Its primary advantages include robust construction, consistent operation, and compliance with ROHS and REACH environmental standards.
6904zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6904 | Basic Bearing Series & Size | Denotes a deep groove ball bearing with a 20mm bore, 37mm OD, and 9mm width. |
| zz | Double Metal Shields (Non-Contact) | Provides effective protection against contamination from both sides while maintaining high-speed capability. |
6904zz Bearing Structural Features & Performance Benefits
Optimized Load Handling: The single row deep groove raceway geometry is designed to support significant radial loads (dynamic: 1436 lbf, static: 828 lbf), making it a versatile choice for various machinery.
Precision & Consistency: Built to ABEC-1 tolerance class with a C0 radial internal clearance (0.006mm to 0.020mm), ensuring smooth and predictable operation.
Durable Material Construction: Components made from chrome steel (rings and balls) and a stainless steel cage provide excellent wear resistance and corrosion protection, contributing to a long service life.
Shielded Protection: The zz shields help retain lubricant and exclude larger particulate contaminants, enhancing bearing reliability in demanding environments.
6904zz Bearing Typical Application Areas
The 6904zz bearing is commonly specified in applications requiring reliable radial load support and compact dimensions, including:
- Electric Motors and Small Gearboxes
- Industrial Fans and Blowers
- Power Tools and Appliances
- Conveyor System Idlers
- Agricultural Machinery Components
