6308-2RZ
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6308-2RZ
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.65 kg
Tolerance class
P6
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.013mm to 0
Width
23 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
9509 lbf
Radial static load rating
5395 lbf
Limiting speed
8.5 X 1000 rpm
Lubrication
Grease
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
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In Stock
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6308-2RZ Bearing Product Overview & Core Advantages
The 6308-2RZ is a metric single row deep groove ball bearing designed for exceptional performance in demanding applications. This sealed bearing excels at handling primarily radial loads and offers high operational reliability. Its compact design, combined with P6 tolerance class precision and pre-applied grease lubrication, makes it an ideal choice for applications requiring high rotational accuracy, long service life, and minimal maintenance.
6308-2RZ Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| -2RZ | Non-contact rubber seals on both sides | Provides excellent protection against contamination while minimizing friction and heat generation, contributing to the high limiting speed. |
6308-2RZ Bearing Structural Features & Performance Benefits
- Robust Load Capacity: Engineered with a single row deep groove raceway, this bearing efficiently supports high radial dynamic load ratings of 9509 lbf and radial static load ratings of 5395 lbf, ensuring durability under significant stress.
- High-Speed Capability: The combination of a low-friction stainless steel cage, optimized internal geometry, and effective sealing allows for a high limiting speed of 8,500 rpm.
- Precision & Reliability: Manufactured to P6 tolerance class with a standard CN radial internal clearance, it guarantees consistent running accuracy and smooth operation, which is critical for precision machinery.
- Long-Term, Maintenance-Free Operation: The integral 2RZ rubber seals effectively retain the factory-applied grease lubrication and exclude contaminants, enabling extended service intervals and reliable performance across a wide temperature range from -30°C to 120°C.
6308-2RZ Bearing Typical Application Areas
This versatile bearing is widely used in various industrial sectors due to its balanced performance characteristics. Common applications include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., Conveyors)
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial load support
