6311-2RS1/C3GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6311-2RS1/C3GJN
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1350 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.015mm to 0
Width
29 mm
Width tolerance
-0.150mm to 0
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
C3
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:
$ 29.2
/ each
In Stock
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6311-2RS1/C3GJN Bearing Product Overview & Core Advantages
The 6311-2RS1/C3GJN is a sealed single row deep groove ball bearing engineered for demanding industrial applications requiring reliable performance under radial loads. This metric bearing features ABEC 1 precision and a C3 radial internal clearance, making it suitable for applications with moderate operational speeds and thermal expansion considerations. Its primary advantages include robust construction with chrome steel components, effective sealing for contaminant exclusion, and a high dynamic load rating of 16,096 lbf, ensuring longevity and dependable operation in various machinery.
6311-2RS1/C3GJN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6311 | Basic bearing designation: Deep Groove Ball Bearing, 55mm bore, 120mm OD, 29mm width. |
| 2RS1 | Bearing is equipped with two contact seals (RS1 type) on both sides, providing superior protection against contaminants and moisture retention. |
| C3 | Specifies a greater than normal radial internal clearance. Ideal for applications with shaft fits causing clearance reduction or where operational heat generation is expected. |
| GJN | Indicates the bearing is pre-lubricated with a specific polyurea-based grease. This grease offers good performance across the specified temperature range (-30°C to 120°C). |
6311-2RS1/C3GJN Bearing Structural Features & Performance Benefits
- Robust Single Row Design: Manufactured from chrome steel for rings, balls, and cage, this construction provides high strength, wear resistance, and consistent performance under radial dynamic loads.
- Effective Sealing Solution: The 2RS1 contact seals effectively shield the internal components from dust, dirt, and other contaminants, significantly extending the bearing's service life and reducing maintenance needs in harsh environments.
- Optimized Internal Clearance: The C3 clearance accommodates thermal expansion from high-speed operation or interference fits, preventing premature failure due to excessive preload and ensuring smooth running.
- Ready-to-Install Lubrication: Pre-lubricated with GJN grease, the bearing is maintenance-free for its initial service period, simplifying installation and providing immediate, reliable operation within its temperature range.
6311-2RS1/C3GJN Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable, sealed ball bearing solutions.
