6215-ZNRJEM/C3
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6215-ZNRJEM/C3 Bearing Product Overview & Core Advantages
The 6215-ZNRJEM/C3 is a single row deep groove ball bearing engineered for robust performance in demanding industrial applications. This metric bearing is distinguished by its shielded design and a snap ring fitted on the outer ring, which facilitates secure axial location within a housing. Manufactured to ABEC 1 | ISO P0 tolerance standards, it offers reliable precision for general machinery. A key feature is its greater radial internal clearance (C3), making it particularly suitable for applications involving thermal expansion or where interference fits are used. Its construction from high-grade chrome steel ensures durability and a long service life under substantial radial loads.
6215-ZNRJEM/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| 6215 | Standard bearing series designation, indicating a medium-duty, single row deep groove ball bearing with a 75mm bore. | Proven, versatile design for a wide range of applications. |
| ZNR | Indicates a snap ring groove on the outer ring and a shielded configuration on one side. | The snap ring simplifies housing design and assembly, providing secure axial location. The shield offers basic protection against contaminants. |
| JEM | Manufacturer-specific code, often related to the cage design or internal optimization. | Contributes to the bearing's overall stability and performance consistency. |
| /C3 | Specifies a greater radial internal clearance than the standard CN group. | Accommodates thermal expansion from high speeds or heavy loads and interference fits, preventing premature failure due to binding. |
6215-ZNRJEM/C3 Bearing Structural Features & Performance Benefits
Optimized for Radial Loads: The single row deep groove raceway geometry is fundamentally designed to support high radial dynamic load ratings (15,152 lbf), making it a workhorse for rotating shafts.
Secure Axial Location: The integrated snap ring on the outer ring eliminates the need for complex housing shoulders or locknuts, simplifying assembly and ensuring the bearing remains correctly positioned.
Contaminant Protection: The non-contact shielded design helps retain lubrication and excludes larger particulate contaminants, enhancing operational reliability in moderately dirty environments.
Enhanced Operational Range: The C3 radial clearance is a critical feature for applications with significant thermal gradients or heavy press fits, preventing excessive preload and associated heat generation, which supports stable operation up to the limiting speed.
Material Integrity: All core components—rings, balls, and cage—are manufactured from chrome steel, providing excellent hardness, wear resistance, and consistent performance across the specified temperature range.
6215-ZNRJEM/C3 Bearing Typical Application Areas
The 6215-ZNRJEM/C3 is ideally suited for a broad spectrum of industrial machinery where reliable radial load support and simplified mounting are paramount. Key sectors include:
- Electric Motors and Generators: For supporting rotor shafts, especially where end-play needs to be controlled by the housing.
- Gearboxes and Power Transmission Systems: Used in various stages to support gears and shafts under significant radial forces.
- Material Handling Equipment: Conveyor pulleys, rollers, and other components requiring robust bearing support.
- Industrial Pumps and Fans: Suitable for the shaft support in medium-duty centrifugal pumps and blowers.
- Agricultural and Construction Machinery: Applied in drivelines, wheels, and other high-load, high-vibration environments.
