6312-2Z/C3HT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6312-2Z/C3HT Bearing Product Overview & Core Advantages
The 6312-2Z/C3 is a single row deep groove ball bearing engineered for high-performance applications requiring reliable operation under significant radial loads. Its shielded design (2Z) provides effective protection against contaminant ingress while maintaining low running torque. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing delivers consistent precision and is pre-set with a greater radial internal clearance (C3), making it exceptionally suitable for applications involving thermal expansion or where interference fits are used. The combination of robust construction and optimized internal geometry ensures high operational reliability and long service life.
6312-2Z/C3HT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| 6312 | Basic Bearing Series & Size Code | Denotes a medium-duty, single row deep groove ball bearing with a 60mm bore, 130mm OD, and 31mm width. |
| 2Z | Shielded on Both Sides | Provides effective non-contact sealing against dust and debris, retaining lubricant and extending bearing life without significantly increasing friction. |
| C3 | Greater Radial Internal Clearance | A clearance greater than normal (CN). Ideal for applications with thermal gradients, heavy interference fits, or where lower operational temperatures are desired. |
6312-2Z/C3HT Bearing Structural Features & Performance Benefits
- Optimized Internal Geometry: The deep groove raceway and high-grade chrome steel construction are designed to handle high radial dynamic load ratings of 18,412 lbf, ensuring durability under demanding conditions.
- Effective Contamination Protection: The non-contact steel shields (2Z) protect the internal components from particulate contamination, making the bearing suitable for environments where sealing is crucial but low starting torque is required.
- Thermal & Fit Accommodation: The C3 radial internal clearance provides operational stability in applications prone to shaft and housing thermal expansion or where press fits reduce the internal clearance.
- High-Speed Capability: With a limiting speed of 5,300 rpm, the bearing is capable of reliable performance in a wide range of industrial machinery. The pressed steel cage ensures stability at high rotational speeds.
- Versatile Material Compatibility: All critical components—rings, balls, and cage—are manufactured from high-carbon chrome steel, providing a uniform thermal expansion coefficient and excellent wear resistance.
6312-2Z/C3HT Bearing Typical Application Areas
The 6312-2Z/C3 is a versatile component found in numerous industrial sectors. Its robust design and protective features make it ideal for:
- Electric Motors and Generators: Providing reliable support for shafts under radial loads with minimal maintenance.
- Industrial Gearboxes and Transmissions: Handling high speeds and loads in power transmission systems.
- Material Handling Equipment: Such as conveyor pulleys and rollers, where contamination resistance is key.
- Agricultural Machinery: Withstanding the harsh and dusty environments common in farming equipment.
- Ventilation and Fan Systems: Operating efficiently at high speeds with low noise and vibration.
