6304-2RSJEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304-2RSJEM Bearing Product Overview & Core Advantages
The 6304-2RSJEM is a single row deep groove ball bearing designed for exceptional reliability in demanding applications. This sealed bearing excels at handling primarily radial loads and offers robust performance within a compact envelope. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides a cost-effective solution for applications requiring consistent operation and long service life without maintenance.
6304-2RSJEM Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Benefit |
|---|---|---|
| 6304 | Standard designation for a metric single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. | Defines the core bearing dimensions and type. |
| 2RS | Contact seals on both sides of the bearing. | Provides superior protection against contaminant ingress and retains lubricant, enabling a maintenance-free design. |
| JEM | A designation for the specific cage material and construction, in this case, a pressed steel cage. | Offers high strength and durability, suitable for a wide range of operating conditions. |
6304-2RSJEM Bearing Structural Features & Performance Benefits
- Optimized Raceway Geometry: The deep groove raceways are precision-engineered to facilitate smooth rotation and efficient radial load distribution, contributing to low noise and vibration levels.
- Robust Sealing Solution: The integral 2RS contact seals are a key structural feature, creating an effective barrier against dust, moisture, and other contaminants. This significantly extends the bearing's operational life in harsh environments.
- High-Strength Cage: The pressed steel cage (JEM) ensures precise ball guidance and separation, maintaining stability at the specified limiting speed of 14,000 rpm.
- Standard Internal Clearance: The CN radial internal clearance is suitable for most common applications, providing a balance between operational smoothness and thermal expansion management.
6304-2RSJEM Bearing Typical Application Areas
The 6304-2RSJEM is a versatile component found in a wide array of industrial machinery and equipment, including:
- Electric Motors and Small Gearboxes
- Material Handling Conveyor Systems
- Industrial Fans and Blowers
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)