6011-ZNRJEM (C3)
6000 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6011-ZNRJEM (C3) Bearing Product Overview & Core Advantages
The 6011-ZNRJEM (C3) is a single row deep groove ball bearing engineered for high performance in demanding applications. Its core advantages stem from a combination of robust construction and specific design features. This bearing is designed to primarily handle radial loads efficiently while also accommodating moderate axial loads in both directions. A key feature is the integral snap ring on the outer ring, which simplifies axial location within a housing, saving space and reducing assembly complexity. Manufactured to ABEC 1 / ISO P0 tolerance standards and featuring a C3 radial internal clearance, it is well-suited for applications with expected thermal expansion or where a slightly looser fit is required for optimal performance.
Model Code In-Depth Analysis
| Model Segment | Technical Meaning | Benefit |
|---|---|---|
| 6011 | Standard designation for a metric single row deep groove ball bearing with a 55mm bore, 90mm OD, and 18mm width. | Defines the core bearing dimensions for interchangeability and selection. |
| Z | One side shielded. | Protects the bearing interior from large contaminants. |
| NR | Snap ring groove and snap ring fitted on the outer ring. | Enables secure and simplified axial location, reducing housing design complexity and cost. |
| JEM | JEM standard snap ring. | Specifies a standard, readily available snap ring type. |
| (C3) | Radial internal clearance greater than Normal (C0) group. | Accommodates thermal expansion in the shaft or housing, preventing preload and potential seizure in high-temperature or high-speed applications. |
6011-ZNRJEM (C3) Bearing Structural Features & Performance Benefits
Deep Groove Raceway & High-Quality Steel: The geometry of the raceways and the use of chrome steel for all components (rings, balls, cage) provide a high radial dynamic load rating of 6362 lbf and reliable operation.
Snap Ring Locating Feature: The integrated snap ring is a significant structural advantage. It provides a positive axial location for the bearing's outer ring, eliminating the need for complex shoulder machining in the housing, which saves space, weight, and manufacturing costs.
Shielded Design: The shield on one side helps retain lubricant and exclude larger particulate contaminants, enhancing bearing life in less-than-ideal environments.
Optimized Internal Clearance: The C3 clearance is a critical performance feature. It ensures smooth operation and prevents binding in applications where operational heat causes expansion of the bearing rings and surrounding components.
6011-ZNRJEM (C3) Bearing Typical Application Areas
The 6011-ZNRJEM (C3) is versatile and finds use in various industrial sectors where reliable radial load support and simplified mounting are key. Typical applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
