6311NR J
6300 Series Snap Ring Bearings
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Part No.
Part No.
6311NR J
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
55 mm
Bore diameter tolerance
-0.015 mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.015 mm to 0
Width
29 mm
Width tolerance
-0.12 mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
16096 lbf
Radial static load rating
10116 lbf
Limiting speed
5.6 X 1000 rpm
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:
$ 21.76
/ each
In Stock
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6311NR J Bearing Product Overview & Core Advantages
The 6311NR J is a single row deep groove ball bearing engineered for superior performance in radial load applications. This metric bearing features an open design and is distinguished by its snap ring groove on the outer ring, which facilitates secure axial location and simplifies housing design. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers reliable, consistent operation. Its high radial dynamic load rating of 16,096 lbf and robust construction with chrome steel components make it an excellent choice for demanding industrial environments requiring high reliability and long service life.
6311NR J Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| NR | Snap Ring Groove on the outer ring | Enables secure axial positioning, simplifies assembly, and reduces the need for complex housing shoulders. |
| J | Pressed steel cage, ball guided | Provides robust guidance for the balls, contributing to stable operation and high limiting speed. |
6311NR J Bearing Structural Features & Performance Benefits
- Snap Ring Locating Feature: The integrated snap ring groove allows for positive axial location of the bearing within the housing. This design enhances assembly accuracy, reduces component count, and increases the overall rigidity of the mounting arrangement.
- High Load Capacity: The single row deep groove raceway geometry is optimized to handle significant radial loads, with a high dynamic load rating ensuring durability under demanding conditions.
- Optimized for Speed: The combination of the J-type pressed steel cage and open design allows for effective lubrication management, supporting a high limiting speed of 5,600 rpm for efficient operation.
- Precision & Reliability: Manufactured from high-grade chrome steel and conforming to ABEC 1 | ISO P0 tolerances, this bearing guarantees consistent performance, low noise, and extended service life in a wide temperature range from -30°C to 120°C.
6311NR J Bearing Typical Application Areas
This versatile bearing is ideally suited for a wide range of industrial machinery and equipment, including:
- Electric Motors and Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Industrial Fans and Blowers
- Pump and compressor systems where secure axial location is required.
