6311-2ZN/C3
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6311-2ZN/C3 Bearing Product Overview & Core Advantages
The 6311-2ZN/C3 is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This metric bearing features shielded seals (2Z) on both sides for robust contamination protection and a C3 radial internal clearance for stable operation under thermal expansion in various operating conditions. Its construction from high-grade chrome steel ensures durability and a long service life. Engineered to handle primarily radial loads with high efficiency, it is a reliable and versatile component for a wide range of machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6311 | Basic bearing designation indicating a medium series, single row deep groove ball bearing with a 55 mm bore. |
| 2Z | Denotes shielded seals on both sides of the bearing. This provides effective protection against solid contaminants while allowing for relatively high-speed operation. |
| N | Indicates a snap ring groove on the outer ring. This feature allows for simplified axial location and secure mounting within a housing. |
| /C3 | Specifies a greater than normal radial internal clearance. This is ideal for applications with expected thermal expansion, such as in electric motors, or where interference fits are used. |
6311-2ZN/C3 Bearing Structural Features & Performance Benefits
- Robust Shielded Design: The double-shielded (2Z) construction effectively prevents the ingress of dust and other particles, enhancing bearing life and reliability in contaminated environments without the higher friction of contact seals.
- Optimized Load Capacity: As a single row deep groove ball bearing, it is primarily designed to support high radial loads (Dynamic: 16,096 lbf, Static: 10,116 lbf), making it a workhorse for many mechanical power transmission systems.
- Simplified Mounting with Snap Ring: The outer ring snap ring groove (N) facilitates easy axial positioning and secure retention, reducing assembly complexity and cost.
- Stable Thermal Performance: The C3 clearance group ensures operational stability by accommodating shaft expansion under elevated temperatures, preventing preload and potential seizure.
- Precision Manufacturing: Manufactured to ABEC 1 | ISO P0 tolerance class, this bearing offers consistent quality and performance suitable for a broad spectrum of industrial applications.
6311-2ZN/C3 Bearing Typical Application Areas
The 6311-2ZN/C3 is widely used across various industries due to its balanced performance characteristics. Common applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial load support
