W 61904-2RS1
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61904-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.035 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
37 mm
Outside diameter tolerance
-0.011mm to 0
Width
9 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
1243 lbf
Radial static load rating
821 lbf
Limiting speed
12 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
No drawings available at the moment, will be launched soon
Price:
$ 5.16
/ each
In Stock
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W 61904-2RS1 Bearing Product Overview & Core Advantages
The W 61904-2RS1 is a single row deep groove ball bearing designed for precision applications requiring high reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle primarily radial loads efficiently, while its sealed design (2RS1) and pre-lubrication ensure long-term, maintenance-free operation. This makes it an ideal, compact solution for applications demanding high rotational accuracy and durability in challenging environments.
W 61904-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing |
| 61904 | Bearing series and size designation (9mm width, 20mm bore, 37mm OD) |
| 2RS1 | Contact rubber seals on both sides, providing superior protection against contamination and moisture. |
W 61904-2RS1 Bearing Structural Features & Performance Benefits
- Robust Construction & Corrosion Resistance: Manufactured from stainless steel for rings, balls, and cage, this bearing is inherently resistant to rust and corrosion, making it suitable for wet or chemically aggressive environments.
- High-Speed Capability: The deep groove raceway and optimized stainless steel cage contribute to stable operation at high rotational speeds, with a limiting speed of 12,000 rpm.
- Effective Sealing & Long Service Life: The 2RS1 contact seals effectively retain lubricant and exclude contaminants, while the pre-applied grease lubrication ensures consistent performance across the specified temperature range (-30° to 120 °C), resulting in a long, maintenance-free service life.
- Precision Performance: Built to P0 (Normal) tolerance class and standard CN radial internal clearance, it provides reliable and precise rotation for a wide range of industrial applications.
W 61904-2RS1 Bearing Typical Application Areas
This bearing is ideally suited for applications where corrosion resistance, high-speed operation, and reliability are critical. Key sectors include:
- Food & Beverage Processing Equipment
- Medical and Laboratory Devices
- Chemical Handling Pumps and Mixers
- Precision Electric Motors and Small Gearboxes
- Agricultural Machinery (for components exposed to weather)
