W 61801-2RS1/VT378
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61801-2RS1/VT378
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0053 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
21 mm
Outside diameter tolerance
-0.009mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
339 lbf
Radial static load rating
202 lbf
Limiting speed
43 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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W 61801-2RS1/VT378 Bearing Product Overview & Core Advantages
The W 61801-2RS1/VT378 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 sealed design (2RS1) which effectively protects against contaminants, making it suitable for applications where maintenance-free operation is essential. This bearing is engineered to handle primarily radial loads and is characterized by its compact dimensions, low weight, and operation across a wide temperature range.
W 61801-2RS1/VT378 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing |
| 61801 | Basic bearing designation for a single row deep groove ball bearing with a 12 mm bore. |
| 2RS1 | Contact seals on both sides. Provides superior protection against dust and moisture ingress compared to non-contact shields. |
| VT378 | Filling grease specification. This high-performance lubricant ensures smooth operation and long service life across the specified temperature range. |
W 61801-2RS1/VT378 Bearing Structural Features & Performance Benefits
- Robust Sealed Construction: The 2RS1 contact seals are the primary structural feature, effectively shielding the stainless steel ball and raceway assembly from contaminants. This results in a maintenance-free bearing with enhanced operational longevity, even in challenging environments.
- High Precision & Low Noise: Manufactured to ABEC 1 | ISO P0 tolerance class with a CN radial internal clearance, this bearing ensures consistent running accuracy and low vibration, which is critical for sensitive applications.
- Corrosion Resistance: The use of stainless steel for all critical components (rings, balls) provides excellent resistance to rust and corrosion, making it ideal for use in humid or washdown environments.
- Optimized Performance: The combination of the VT378 grease and the precision-ground components allows for a limiting speed of 43,000 rpm, suitable for a wide range of high-speed applications.
W 61801-2RS1/VT378 Bearing Typical Application Areas
- Medical and Dental Equipment: Ideal for small motors, pumps, and handheld tools requiring corrosion resistance and reliability.
- Food and Beverage Processing: Suitable for conveyors, mixers, and other machinery where washdowns are frequent and stainless steel construction is mandatory.
- Precision Instruments and Optical Devices: Used in scanners, encoders, and measuring instruments due to its low noise and high running accuracy.
- Small Electric Motors: A perfect fit for compact, high-speed motors in appliances, drones, and robotics, benefiting from its sealed and maintenance-free design.
