RLS 28
RLS Series Single Row Deep Groove Ball Bearings
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Part No.
Part No.
RLS 28
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.46 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
3.5"
Bore diameter tolerance
-0.00031" to 0.00019"
Outside diameter
6.5"
Outside diameter tolerance
-0.00181" to -0.00129"
Width
1.125"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
21492 lbf
Radial static load rating
16523 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
None
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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RLS 28 Bearing Product Overview & Core Advantages
The RLS 28 is a single row deep groove ball bearing designed for demanding industrial applications requiring high precision and reliability. Engineered to primarily handle radial loads, this bearing features a P6 tolerance class for superior running accuracy. Its open design allows for versatile lubrication options, while the robust construction using chrome steel rings and balls with a stainless steel cage ensures exceptional durability and consistent performance in a wide temperature range from -30°C to 120°C.
RLS 28 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| RLS 28 | Basic bearing designation, indicating a specific bearing size and internal design. |
| Open (Seal Type) | No integral seals or shields. This allows for high-speed operation and custom lubrication schemes. |
| P6 (Tolerance Class) | Denotes a precision bearing with tighter dimensional and running accuracy tolerances than standard bearings. |
| CN (Radial Internal Clearance) | Standard (normal) radial internal clearance group, suitable for most common operating conditions. |
RLS 28 Bearing Structural Features & Performance Benefits
- High Precision and Rigidity: The P6 tolerance class ensures minimal runout and vibration, making it ideal for applications requiring high positional accuracy. The single-row deep groove ball bearing construction provides robust support and high rigidity.
- Superior Load Capacity: With a radial dynamic load rating of 21,492 lbf and a radial static load rating of 16,523 lbf, this bearing is built to handle significant radial forces reliably.
- Optimized for High-Speed Operation: The combination of a stainless steel cage and an open design contributes to a high limiting speed of 5,300 rpm, reducing friction and heat generation.
- Versatile Application Range: The open seal type and wide operating temperature range provide flexibility in lubrication and environment, allowing it to perform in various industrial settings.
RLS 28 Bearing Typical Application Areas
This bearing is commonly specified in:
- Industrial Gearboxes and Transmissions
- Electric Motors and Generators
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Precision Machinery requiring P6 tolerance levels
