6308-2Z/C3-GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6308-2Z/C3-GJN
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
620 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
915 lbf
Radial static load rating
5395 lbf
Limiting speed
7.5 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:
$ 11.91
/ each
In Stock
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6308-2Z/C3-GJN Bearing Product Overview & Core Advantages
The 6308-2Z/C3-GJN is a single row deep groove ball bearing engineered for robust performance in demanding industrial applications. This shielded bearing excels in handling primarily radial loads while also accommodating moderate axial loads in both directions. Its key advantages include a generous C3 radial internal clearance for stable operation under thermal expansion, factory-fitted shields for contaminant exclusion, and high-quality chrome steel construction for durability. Designed to ABEC 1 | ISO P0 tolerance standards, it offers reliable, cost-effective performance for a wide range of machinery.
6308-2Z/C3-GJN Bearing Model Code Explained, Specifications & Naming Convention
The model number 6308-2Z/C3-GJN provides a complete technical specification. Below is a detailed breakdown:
- 6308: Basic model number indicating a medium-duty, single row deep groove ball bearing with a 40mm bore, 90mm OD, and 23mm width.
- 2Z: Designates that the bearing is shielded on both sides. These non-contact steel shields protect the internal components from contamination while minimizing friction.
- C3: Specifies a greater than normal radial internal clearance. This is critical for applications where thermal expansion is expected, preventing preload and ensuring smooth operation.
- GJN: Indicates the bearing is lubricated with a specific polyurea-thickened grease. This grease offers excellent performance across the bearing's operating temperature range of -30°C to 120°C.
6308-2Z/C3-GJN Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured from high-carbon chrome steel for both rings, balls, and cage, this bearing provides high strength and resistance to wear. With a dynamic load rating of 915 lbf and a static load rating of 5395 lbf, it is built to withstand significant radial forces.
- Optimized for Thermal Stability: The C3 clearance is a key performance feature, allowing for dimensional changes due to heat generation without inducing binding or failure, which is vital for maintaining performance in continuous operation.
- Long-Term Reliability with Sealing & Lubrication: The 2Z shields effectively keep contaminants out and the factory-applied GJN grease in, contributing to a long service life with minimal maintenance. This makes it a maintenance-free solution for many applications.
- Balanced High-Speed Performance: The combination of a precision-machined steel cage, optimized internal geometry, and effective grease lubrication enables a limiting speed of 7,500 rpm, suitable for a wide range of operational demands.
6308-2Z/C3-GJN Bearing Typical Application Areas
The 6308-2Z/C3-GJN is a versatile component found in numerous industrial sectors. Its combination of load capacity, speed, and sealed construction makes it ideal for:
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Pumps and Fans
