216-ZNR
200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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216-ZNR Bearing Product Overview & Core Advantages
The 216-ZNR is a single row deep groove ball bearing designed for high-performance industrial applications requiring reliable radial load capacity and secure axial positioning. This metric bearing features an integral snap ring on its outer ring, enabling simplified housing design and preventing creep in demanding operating conditions. Manufactured with chrome steel rings and balls, and a stainless steel cage, it delivers excellent durability and consistent performance. Its shielded design and pre-lubricated state ensure long service life with minimal maintenance, making it an ideal choice for applications where reliability and ease of installation are critical.
216-ZNR Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| 216 | Standard bore diameter series designation | Indicates standard dimensions for easy interchangeability. |
| Z | Shielded on one side | Protects against contaminants while allowing high-speed operation. |
| NR | Snap ring groove and snap ring fitted on outer ring | Eliminates the need for a separate shoulder, simplifying assembly and securing the bearing axially. |
216-ZNR Bearing Structural Features & Performance Benefits
- Robust Load Capacity & High Rigidity: The single row deep groove raceway geometry is optimized to handle significant radial loads (Dynamic: 19,783 lbf, Static: 19,109 lbf). The solid construction with chrome steel components provides high rigidity and resistance to deformation under load.
- Axial Location & Simplified Design: The integrated snap ring is a key structural feature. It acts as a positive locating shoulder, preventing axial movement of the bearing within the housing. This allows for more compact and cost-effective housing designs without the need for complex machining.
- Enhanced Contamination Protection & Longevity: The shielded (Z) design effectively retains lubricant and excludes larger particulate contaminants. Combined with the pre-applied grease lubrication, this ensures consistent performance and extends the bearing's operational life, reducing the need for re-lubrication.
- Stable High-Speed Operation: The lightweight, durable stainless steel cage ensures stable ball guidance, contributing to smooth operation and a high limiting speed of 5,000 rpm. The standard CN radial internal clearance is suitable for a wide range of common operating conditions.
216-ZNR Bearing Typical Application Areas
The 216-ZNR is engineered for a variety of industrial machinery and equipment where secure mounting and reliable radial load support are essential. Common applications include:
- Electric Motors and Gearboxes: For supporting shafts and providing axial location in compact housings.
- Material Handling Equipment: Conveyor rollers, pulleys, and other components requiring robust bearing performance.
- Agricultural Machinery: Implement drives and transmission systems where contamination resistance is beneficial.
- Industrial Fans and Blowers: Providing reliable support for fan shafts at operational speeds.
- General Industrial Machinery: A versatile choice for pumps, compressors, and other equipment with standard duty cycles.
