W 61811-2RS1
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61811-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.079 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
9 mm
Width tolerance
-0.15mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
1607 lbf
Radial static load rating
1911 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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W 61811-2RS1 Bearing Product Overview & Core Advantages
The W 61811-2RS1 is a metric single row deep groove ball bearing designed for high reliability and consistent performance. Its key advantage lies in its ability to efficiently handle radial loads while offering a compact cross-section. Manufactured entirely from stainless steel, it provides excellent corrosion resistance. The inclusion of integral seals (2RS1) and pre-applied grease lubrication ensures long-term, maintenance-free operation, making it an ideal precision bearing for applications demanding cleanliness and durability.
W 61811-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| W | Stainless Steel Bearing | Corrosion resistance for harsh environments. |
| 61811 | Series & Size Designation | Defines the bearing dimensions: 55mm bore, 72mm OD, 9mm width. |
| 2RS1 | Contact Seals on Both Sides | Superior protection against contaminants and retention of lubricant. |
W 61811-2RS1 Bearing Structural Features & Performance Benefits
- Robust Single Row Design: Provides a simple, effective, and economical solution for carrying radial loads.
- All-Stainless Steel Construction: Rings, balls, and cage are made from stainless steel, ensuring high corrosion resistance and suitability for washdown or chemical exposure.
- Sealed and Lubricated for Life: The 2RS1 nitrile rubber seals effectively shield the bearing interior from moisture and debris. Combined with factory-applied grease, this creates a maintenance-free system ideal for sealed or hard-to-reach locations.
- Standard Tolerance & Clearance: Built to P0 tolerance class and CN radial internal clearance, offering reliable and predictable performance for a wide range of general industrial applications.
W 61811-2RS1 Bearing Typical Application Areas
This bearing is well-suited for applications requiring corrosion resistance, compact size, and sealed operation. Key industries and equipment include:
- Food and Beverage Processing Machinery
- Medical and Laboratory Equipment
- Chemical Handling Pumps and Mixers
- Agricultural Machinery
- Electric Motors and Small Gearboxes
