6304 NR
6300 Series Snap Ring Bearings
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Part No.
Part No.
6304 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.15 kg
Tolerance class
P0
Seal type
Open
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
19 X 1000 rpm
Lubrication
None
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:
$ 4.18
/ each
In Stock
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6304 NR Bearing Product Overview & Core Advantages
The 6304 NR is a single row deep groove ball bearing designed for high-performance industrial applications requiring reliable radial load capacity and precise operation. Its key distinguishing feature is the snap ring groove on the outer ring, which facilitates secure axial location within a housing without the need for complex housing shoulders, offering significant design and assembly advantages. Manufactured with precision tolerances (P0 class) and high-grade materials, this bearing delivers consistent performance, making it an ideal choice for applications demanding high rotational speeds and operational reliability.
6304 NR Bearing Model Code Explained, Specifications & Naming Convention
The model designation 6304 NR can be broken down as follows:
- 63: Indicates the bearing series, defining the dimensional boundary and performance characteristics.
- 04: Specifies the bore diameter code; a bore diameter of 20 mm.
- NR: Denotes that the outer ring is equipped with a snap ring groove. This feature allows for the installation of a snap ring to axially locate the bearing securely in the housing.
6304 NR Bearing Structural Features & Performance Benefits
- Snap Ring Groove for Simplified Design: The integrated snap ring groove on the outer ring eliminates the need for complex and costly housing shoulders. This simplifies housing design, reduces material usage, and enables faster, more secure assembly.
- High-Speed Capability: The combination of a stainless steel cage and an open design allows for effective lubrication management, contributing to a high limiting speed of 19,000 rpm.
- Robust Load Capacity: Engineered with chrome steel rings and balls, this bearing offers a high dynamic load rating of 3777 lbf and a static load rating of 1754 lbf, ensuring durability under significant radial loads.
- Standard Internal Clearance: The standard CN radial internal clearance makes it suitable for a wide range of common operating conditions and fits.
6304 NR Bearing Typical Application Areas
The 6304 NR bearing is widely used in various industrial sectors due to its versatile design and reliable performance. Common applications include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
