W 61904
W Series Stainless Steel Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 61904
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.033 kg
Tolerance class
P0
Seal type
Open
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
26 X 1000 rpm
Lubrication
None
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
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
W 61904 Bearing Product Overview & Core Advantages
The W 61904 is a single row deep groove ball bearing designed for high-precision applications requiring reliable radial load capacity. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its open design and P0 tolerance class make it a versatile and cost-effective solution for general machinery where high rotational accuracy and smooth operation are essential. This bearing is particularly valued for its compact cross-section and robust performance within its specified temperature range.
W 61904 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Manufacturer's prefix/series identifier. |
| 61904 | Standard bearing designation following ISO 15: 6 = Single Row Deep Groove, 19 = Series 19 (light), 04 = Bore diameter code (04 * 5 = 20 mm bore). |
| (No Suffix) | Indicates an open (unsealed) bearing with standard radial internal clearance (CN) and no pre-lubrication. |
W 61904 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for applications exposed to moisture, chemicals, or washdown environments.
- High-Speed Capability: The optimized deep groove raceway and stainless steel cage contribute to stable operation at high rotational speeds, with a limiting speed of 26,000 rpm.
- Radial Load Capacity: The deep groove geometry is engineered to support significant radial dynamic load ratings (1243 lbf) and static load ratings (821 lbf), ensuring durability and long service life.
- Precision & Low Friction: Built to P0 (Normal) tolerance class and featuring an open design, this bearing offers precise running accuracy and low running torque, ideal for smooth and efficient operation.
- Wide Temperature Range: The stainless steel construction allows for operation in a temperature range from -30°C to 120°C.
W 61904 Bearing Typical Application Areas
- Medical and Dental Equipment
- Food Processing and Packaging Machinery
- Precision Instruments and Optical Devices
- Small Electric Motors and Gearboxes
- Office Automation Equipment
- Chemical and Pharmaceutical Apparatus
