321M
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
321M
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
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
-0.2mm to 0
Chamfer dimension
2.5 mm
Inner Ring Dimensions
Inner ring width
49 mm
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
16800 lbf
Radial static load rating
16800 lbf
Lubrication
None
Radial internal clearance
CN
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
Price:
$ 264.78
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
321M Bearing Product Overview & Core Advantages
The 321M is a single row deep groove ball bearing engineered for robust radial load capacity in demanding industrial applications. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides reliable performance and consistent operation. Its open design allows for versatile lubrication options, while the all-chrome steel construction ensures high durability and a broad operating temperature range from -30°C to 120°C. This bearing is an excellent choice for applications requiring dependable support and long service life under primarily radial loads.
321M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 321M | Basic bearing designation, indicating a specific bearing size and internal geometry. |
| Open (Seal Type) | No integral seals or shields, allowing for high-speed operation and custom lubrication regimes. |
| CN (Clearance) | Specifies standard radial internal clearance for normal operating conditions. |
| None (Lubrication) | Supplied without factory lubrication, providing flexibility for application-specific greases or oils. |
321M Bearing Structural Features & Performance Benefits
- High Load Capacity: The single row deep groove raceway design is optimized to handle significant radial loads, with a dynamic and static load rating of 16,800 lbf.
- Precision Engineering: Manufactured to ABEC 1 precision class, ensuring smooth running and reduced vibration for consistent performance.
- Robust Construction: All components, including rings, balls, and cage, are made from chrome steel, providing high strength and resistance to wear.
- Versatile Application: The open seal type and standard CN clearance make it suitable for a wide range of operating speeds and conditions, allowing for optimal performance with user-selected lubricants.
- Dimensional Stability: Tight dimensional tolerances on the bore diameter (105 mm), outside diameter (225 mm), and width (49 mm) ensure precise fit and alignment in assemblies.
321M Bearing Typical Application Areas
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial support
