W 61901
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61901
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0098 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
24 mm
Outside diameter tolerance
-0.009mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
564 lbf
Radial static load rating
328 lbf
Limiting speed
40 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
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In Stock
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W 61901 Bearing Product Overview & Core Advantages
The W 61901 is a metric, single row deep groove ball bearing engineered for high-performance applications requiring precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily handle radial loads and is characterized by its compact design with a 6 mm width, making it ideal for space-constrained assemblies. Its P0 tolerance class and CN radial internal clearance ensure consistent performance, while its open seal type allows for versatile lubrication options in clean environments.
W 61901 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| W | Indicates a stainless steel construction for the bearing rings and balls. |
| 61901 | The standard bearing designation for a single row deep groove ball bearing with a 12 mm bore, 24 mm OD, and 6 mm width. |
| Open (Implied) | No seals or shields, allowing for high-speed operation and custom lubrication. |
W 61901 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P0 tolerance class with a CN radial internal clearance, this bearing provides stable and precise rotation, essential for accurate positioning systems.
- Optimized Load Capacity: The deep groove raceway and single row design are optimized to efficiently support radial dynamic load ratings of 564 lbf and static load ratings of 328 lbf.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 40,000 rpm, making it suitable for demanding high-speed applications.
- Corrosion Resistance & Longevity: The all-stainless steel construction (rings, balls, cage) ensures excellent resistance to corrosion and contamination, extending service life in harsh environments.
- Lightweight Design: With a minimal weight of 0.0098 kg, it helps reduce the overall inertia in high-speed mechanisms.
W 61901 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring miniature bearings with high precision and speed. Common uses include:
- High-speed small electric motors and spindles
- Precision instruments and optical encoders
- Medical and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Robotics and miniature gearboxes
