6312-ZNBRJ
6300 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6312-ZNBRJ Bearing Product Overview & Core Advantages
The 6312-ZNBRJ is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable performance in demanding applications. This metric bearing features shielded construction for contaminant protection and a snap ring groove on the outer ring for simplified axial location and secure mounting. Manufactured to ABEC 1 | ISO P0 tolerance standards with standard CN radial internal clearance, it delivers consistent precision and smooth operation across a wide temperature range from -30°C to 120°C. Its robust chrome steel construction throughout rings, balls, and cage ensures high durability and long service life.
6312-ZNBRJ Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| Z | Shield on one side | Basic protection against contaminants |
| N | Snap ring groove on outer ring | Simplifies axial positioning and reduces housing design complexity |
| BR | Brass cage design | Enhanced strength and stability at moderate speeds |
| J | Pressed steel cage design | Note: Specification shows chrome steel cage, verify actual configuration |
6312-ZNBRJ Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway profile enables excellent radial load capacity (18,412 lbf dynamic / 11,735 lbf static) while accommodating moderate axial loads in both directions.
Snap Ring Groove Integration: The outer ring snap ring groove provides positive axial location, eliminating the need for complex housing shoulders and reducing assembly time.
Shielded Protection: The integrated shield offers effective contaminant exclusion while maintaining low friction operation compared to contact seals.
Precision Manufacturing: Built to ABEC 1 | ISO P0 standards with controlled bore diameter tolerance (-0.015mm to 0) and outside diameter tolerance (-0.018mm to 0) for consistent performance in precision applications.
High-Speed Capability: The combination of deep groove design and optimized cage enables operation at limiting speeds up to 5,300 rpm.
6312-ZNBRJ Bearing Typical Application Areas
- Electric Motors: Main shaft support in industrial motors and generators
- Gearboxes & Transmissions: Power transmission systems requiring reliable radial support
- Industrial Pumps: Centrifugal and rotary pump applications
- Material Handling Equipment: Conveyor systems, pulley assemblies
- Agricultural Machinery: Implement drives and power take-off units
- Automotive Components: Auxiliary drives, alternators, and compressor applications
