6304-2ZNR
6300 Series Snap Ring Bearings
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Part No.
Part No.
6304-2ZNR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.16 kg
Tolerance class
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
-0.12mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
57.9 mm
Width of snap ring
1.12 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
3777 lbf
Radial static load rating
1754 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Grease
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
No drawings available at the moment, will be launched soon
Price:
$ 3.6
/ each
In Stock
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6304-2ZNR Bearing Product Overview & Core Advantages
The 6304-2ZNR is a single row deep groove ball bearing engineered for superior performance in demanding applications. This precision bearing features integral shielded protection and a critical snap ring groove on its outer ring, enabling secure and space-saving axial location within a housing. Its design is optimized to handle significant radial loads while operating efficiently across a wide temperature range. Manufactured to P0 tolerance class with standard CN radial internal clearance, it delivers reliable, high-quality performance for industrial machinery requiring robust and maintenance-friendly solutions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6304 | Basic bearing series, indicating a medium-duty, single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. |
| 2Z | Designates non-contact shields on both sides. This provides effective protection against contamination while minimizing friction, contributing to a high limiting speed. |
| NR | Indicates a snap ring groove on the outer ring. This feature simplifies bearing mounting and axial retention in the housing, reducing assembly complexity and cost. |
6304-2ZNR Bearing Structural Features & Performance Benefits
- Robust Load Capacity: Constructed from high-grade Chrome Steel for both rings and balls, this bearing offers a dynamic load rating of 3777 lbf and a static load rating of 1754 lbf, ensuring durability under substantial radial loads.
- High-Speed Capability: The combination of low-friction 2Z shields and a lightweight, durable stainless steel cage allows for a high limiting speed of 15,000 rpm, making it suitable for high-speed applications.
- Simplified Assembly & Axial Location: The integrated snap ring groove (NR) eliminates the need for complex housing shoulders or end caps, providing a secure and compact axial locating solution.
- Maintenance-Free Operation: The bearing is pre-lubricated with grease and sealed with shields, offering long-term, maintenance-free operation and protection against lubricant loss and contaminant ingress.
- Precision & Consistency: Manufactured to P0 (Normal) tolerance class, it guarantees dimensional accuracy and reliable performance for a wide range of industrial applications.
6304-2ZNR Bearing Typical Application Areas
This versatile bearing is ideally suited for applications requiring reliable performance, ease of installation, and contamination protection. Key sectors include:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (e.g., conveyor systems)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
