6304-2Z/C3WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6304-2Z/C3WT
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
144 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.013mm to 0
Width
15 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
3574 lbf
Radial static load rating
1765 lbf
Limiting speed
14 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
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In Stock
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6304-2Z/C3WT Bearing Product Overview & Core Advantages
The 6304-2Z/C3WT is a single row deep groove ball bearing engineered for robust performance in demanding applications. This shielded bearing is designed to primarily handle radial loads while also accommodating moderate axial loads in both directions. Its key advantages include a high radial dynamic load rating of 3574 lbf, a generous C3 radial internal clearance suitable for applications with thermal expansion, and integral shields that protect against contamination. Manufactured to ABEC 1 | ISO P0 tolerance standards, it offers a reliable and cost-effective solution for a wide range of industrial machinery.
6304-2Z/C3WT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Code | Technical Meaning |
|---|---|---|
| Basic Designation | 6304 | Standard single row deep groove ball bearing with 20mm bore, 52mm OD, and 15mm width. |
| Seal/Shield Type | 2Z | Fitted with steel shields on both sides. This provides effective protection against solid contaminants while allowing for higher limiting speeds compared to contact seals. |
| Internal Clearance | C3 | Denotes a greater than normal radial internal clearance. This is ideal for applications with interference fits or where operational heat causes significant thermal expansion of the shaft and housing. |
6304-2Z/C3WT Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured entirely from chrome steel for the rings, balls, and cage, this bearing ensures high strength and durability. The deep groove raceway geometry is optimized to support high radial dynamic and static load ratings, making it suitable for heavy-duty operations.
- Optimized for Thermal Applications: The C3 clearance is a critical feature that prevents bearing seizure or excessive preload in applications where temperature fluctuations are common, ensuring consistent performance and extended service life.
- Contamination Protection & Maintenance: The non-contact 2Z steel shields effectively retain the factory-applied grease and exclude larger particulate contaminants. This design contributes to a maintenance-free operation in many environments and supports a high limiting speed of 14,000 rpm.
- Precision & Consistency: Produced to ABEC 1 (ISO P0) tolerance class, this bearing guarantees runout and dimensional accuracy suitable for a vast majority of industrial applications, ensuring smooth operation and ease of installation.
6304-2Z/C3WT Bearing Typical Application Areas
This versatile shielded ball bearing is commonly specified in:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (e.g., conveyors)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
