6218 2S1 HC5C3GJN
6000 Series HC5/HC5C3 Hybrid Ceramic Bearings
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Part No.
Part No.
6218 2S1 HC5C3GJN
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2150 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
160 mm
Outside diameter tolerance
-0.025mm to 0
Width
30 mm
Width tolerance
-0.200mm to 0
Performance
Temperature range
-30°to 200 °C
Radial dynamic load rating
21604 lbf
Radial static load rating
16074 lbf
Limiting speed
4 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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6218 2S1 HC5C3GJN Bearing Product Overview & Core Advantages
The 6218 2S1 HC5C3GJN is a single row deep groove ball bearing engineered for exceptional performance in demanding applications. This precision bearing is distinguished by its hybrid ceramic construction, featuring Silicon Nitride (Si3N4) balls and chrome steel rings, which significantly enhances its operational capabilities. It is designed to primarily handle high radial loads and is optimized for high-speed operation. Its key advantages include reduced friction, extended service life, and the ability to perform reliably across a wide temperature range from -30°C to 200°C, making it a superior choice for high-reliability scenarios.
6218 2S1 HC5C3GJN Bearing Model Code Explained, Specifications & Naming Convention
The model number 6218 2S1 HC5C3GJN provides a detailed technical specification. Below is a breakdown of its components:
- 6218: Standard designation for a single row deep groove ball bearing with a 90mm bore and 160mm outside diameter.
- 2S1: Indicates the bearing is supplied with a special heat stabilization treatment, suitable for operating temperatures up to 200°C.
- HC5: Signifies the Hybrid Ceramic construction with Silicon Nitride (Si3N4) balls.
- C3: Denotes a greater than normal radial internal clearance, which is beneficial for applications with thermal expansion or where interference fits are used.
- GJN: Specifies the use of a high-temperature, solid lubricant (Molybdenum Disulphide) fill.
6218 2S1 HC5C3GJN Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and Silicon Nitride balls results in lower density, reduced centrifugal forces, and higher stiffness. This directly contributes to superior high-speed performance, lower operating temperatures, and dramatically increased bearing life compared to all-steel equivalents.
- High Load Capacity: With a dynamic load rating of 21,604 lbf and a static load rating of 16,074 lbf, this bearing is built to withstand significant radial loads.
- Optimized for High Speeds: The hybrid construction and C3 clearance allow for a high limiting speed of 4,000 rpm, making it ideal for demanding rotational applications.
- Robust & Reliable: The heat-stabilized rings (2S1) and solid lubricant fill (GJN) ensure dimensional stability and consistent performance even at elevated temperatures, offering a maintenance-free solution for many applications.
6218 2S1 HC5C3GJN Bearing Typical Application Areas
This high-performance ball bearing is ideally suited for advanced industrial applications, including:
- High-Speed Spindles in machine tools and machining centers
- Electric motors and generators requiring high limiting speeds
- Precision instruments and medical equipment
- Aerospace components and auxiliary power units (APUs)
- Turbochargers and other high-temperature, high-RPM machinery
