6212-ZNBRJEM (C3)
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6212-ZNBRJEM (C3)
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
762 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.015mm to 0
Width
22 mm
Width tolerance
-0.150mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring Groove
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
1178 lbf
Radial static load rating
8138 lbf
Limiting speed
5.6 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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6212-ZNBRJEM (C3) Bearing Product Overview & Core Advantages
The 6212-ZNBRJEM (C3) is a single row deep groove ball bearing engineered for robust performance in demanding industrial applications. Its core advantages stem from a combination of a snap ring groove on the outer ring for secure axial location, shielded design for contaminant protection, and a C3 radial internal clearance suitable for applications with thermal expansion or heavy interference fits. This configuration offers reliable operation, simplified mounting, and excellent value for a wide range of machinery.
6212-ZNBRJEM (C3) Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6212 | Basic designation for a single row deep groove ball bearing with a 60mm bore. | Standardized dimensions for interchangeability. |
| Z | Shield on one side. | Protects against contaminants from one direction. |
| N | Snap ring groove on the outer ring. | Enables secure axial location within a housing, simplifying design and assembly. |
| BR | Brass cage (inferred from JEM context, a common designation). | Provides high strength and stability, suitable for high-speed applications. |
| JEM | Manufacturer-specific suffix, often indicating a pressed steel cage variant or specific internal design. | Denotes a specific performance grade or construction from the manufacturer. |
| (C3) | Radial internal clearance greater than normal (C0). | Accommodates thermal expansion from operation or heavy interference fits, preventing preload and ensuring smooth running. |
6212-ZNBRJEM (C3) Bearing Structural Features & Performance Benefits
- Snap Ring Groove for Secure Mounting: The outer ring snap ring groove (N suffix) allows for simple and secure axial location within a housing, eliminating the need for complex end covers or shoulders. This feature enhances design flexibility and reduces assembly time.
- Shielded Design for Contaminant Exclusion: The integral shield (Z suffix) offers effective protection against large particulate contaminants, extending bearing life and reliability in moderately dirty environments without the higher friction of contact seals.
- Optimized Internal Clearance for Stable Operation: The C3 clearance is a critical feature for applications prone to thermal expansion or where press fits are used. It prevents excessive preload that can lead to overheating and premature failure, ensuring stable performance under varying thermal conditions.
- Robust Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing provides a substantial radial dynamic load rating of 1178 lbf and a radial static load rating of 8138 lbf, making it suitable for significant radial loads.
6212-ZNBRJEM (C3) Bearing Typical Application Areas
The 6212-ZNBRJEM (C3) is ideally suited for a variety of industrial machinery where reliable radial load support and secure mounting are paramount. Key application areas include:
- Electric Motors and Generators: For supporting rotor shafts, where the snap ring simplifies housing design.
- Gearboxes and Power Transmission Systems: Handles radial loads from gears and pulleys, with C3 clearance accommodating thermal changes.
- Industrial Fans and Blowers: Operates reliably at the specified limiting speed in environments protected by the shield.
- Agricultural and Construction Machinery: Provides durability in applications requiring robust bearing performance and easy installation.
- Material Handling Equipment: Such as conveyor pulleys and rollers, benefiting from the combination of load capacity and mounting security.
