6321-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6321-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
8.09 kg
Tolerance class
P6
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
105 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
225 mm
Outside diameter tolerance
-0.03mm to 0
Width
49 mm
Width tolerance
-0.200mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
41365 lbf
Radial static load rating
34396 lbf
Limiting speed
4 X 1000 rpm
Lubrication
Required
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
Price available upon request.
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6321-2Z Bearing Product Overview & Core Advantages
The 6321-2Z is a double-row deep groove ball bearing designed for exceptional performance in demanding applications. This shielded bearing offers a compact and robust solution, capable of handling significant radial loads. Its key advantages include simplified assembly due to the integrated shields and suitability for applications requiring high reliability and operational consistency. The design is optimized for scenarios where space is at a premium and robust load support is essential.
6321-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6321 | Basic bearing designation indicating a double-row deep groove ball bearing with a 105 mm bore diameter. |
| 2Z | Signifies bearings with shields on both sides. This provides effective protection against coarse contaminants while allowing for higher limiting speeds compared to contact seals. |
6321-2Z Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The double-row design provides superior radial load rating and system rigidity compared to single-row bearings, making it ideal for supporting heavy loads and reducing deflection.
- Effective Contamination Protection: The non-contact steel shields (2Z) effectively protect the internal bearing components from large particulate contaminants, extending service life and reliability.
- Precision & Durability: Manufactured to P6 tolerance class with a standard CN radial internal clearance, this bearing ensures precise running accuracy. The stainless steel cage ensures high strength and corrosion resistance, contributing to stable performance.
- Broad Operating Range: With a specified operating temperature range from -30°C to 120°C, the bearing is suitable for a wide variety of industrial environments.
6321-2Z Bearing Typical Application Areas
This bearing is engineered for applications requiring robust performance and reliable operation, including:
- Industrial Gearboxes and Transmission Systems
- Electric Motors and Generators
- Heavy-Duty Conveyor Pulleys
- Material Handling Equipment
- Agricultural Machinery
