6312-2Z/C3GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6312-2Z/C3GJN Bearing Product Overview & Core Advantages
The 6312-2Z/C3GJN is a single row deep groove ball bearing designed for exceptional performance in demanding applications. This shielded bearing features a robust construction capable of handling significant radial loads, making it a versatile and reliable component. Its key advantages include high operational reliability, a wide operating temperature range, and compliance with major environmental standards. The combination of C3 radial internal clearance and ABEC 1 precision ensures stable performance under various operational conditions, including thermal expansion.
6312-2Z/C3GJN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6312 | Standard bearing series with 60mm bore, 130mm OD, 31mm width | Standardized dimensions for easy replacement and interchangeability |
| 2Z | Non-contact steel shields on both sides | Effective contamination protection with minimal impact on limiting speed |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in applications with high temperature differentials |
| GJN | Polyurea thickened grease, light load, standard temperature range | Pre-lubricated for immediate operation with good high-speed performance |
6312-2Z/C3GJN Bearing Structural Features & Performance Benefits
Optimized Load Capacity: The single row deep groove raceway geometry is engineered to efficiently support high radial dynamic load ratings of 18,412 lbf, while also accommodating moderate axial loads in both directions. This makes it suitable for applications with combined loading scenarios.
Shielded Protection: The non-contact 2Z shields provide a robust barrier against contaminants like dust and debris, significantly extending bearing service life without the torque increase associated with contact seals. This design maintains a high limiting speed of 5,300 rpm.
Enhanced Operational Stability: The C3 radial clearance is specifically selected for applications where shaft and housing fits or operational temperatures may lead to a reduction in internal clearance. This prevents pre-loading and ensures smooth, low-vibration operation.
Material Integrity: Manufactured entirely from chrome steel for rings, balls, and cage, this bearing offers high hardness, wear resistance, and dimensional stability across its specified temperature range of -30°C to 120°C.
6312-2Z/C3GJN Bearing Typical Application Areas
- Electric Motors and Generators: A primary application due to its ability to handle radial loads at high speeds.
- Industrial Gearboxes and Transmissions: Used in various stages for supporting shafts and gears.
- Material Handling Equipment: Conveyor pulleys, rollers, and other components requiring reliable, shielded bearings.
- Agricultural Machinery: Implements and machinery where contamination protection is critical.
- General Industrial Machinery: Pumps, fans, and blowers that operate under standard load and speed conditions.
