W 61801-2Z
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61801-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0057 kg
Tolerance class
P0
Seal type
Shielded
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
36 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:
$ 7.03
/ each
In Stock
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W 61801-2Z Bearing Product Overview & Core Advantages
The W 61801-2Z is a single row deep groove ball bearing designed for high precision and reliable performance in compact spaces. Engineered with stainless steel construction throughout (rings, balls, and cage), it offers excellent corrosion resistance. Its key advantage lies in its ability to efficiently support radial loads while its shielded (2Z) design provides protection against contaminant ingress, making it a robust and durable solution for applications demanding longevity and consistent operation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing Series |
| 61801 | Bearing series and size designation (Extra Small, Thin Section) |
| 2Z | Bearing with shields on both sides. This provides good protection against dust and other particles while maintaining low friction and allowing for higher speeds compared to contact seals. |
W 61801-2Z Bearing Structural Features & Performance Benefits
- Compact Design & High Precision: With a minimal cross-section (12 mm bore, 21 mm OD, 5 mm width), this bearing is ideal for space-constrained applications. Manufactured to P0 tolerance class and CN radial internal clearance, it ensures smooth and precise operation.
- Robust Load Capacity: The single row deep groove raceway geometry is optimized to handle significant radial dynamic load ratings (339 lbf) and radial static load ratings (202 lbf).
- Corrosion Resistance & Longevity: The all-stainless steel construction (AISI 440) provides excellent resistance to rust and corrosion, enhancing bearing life in harsh environments.
- Maintenance-Free Operation: The bearing is pre-lubricated with grease and features non-contact shields (2Z) on both sides. This combination seals in lubrication and seals out contaminants, enabling long-term, maintenance-free service within a temperature range of -30°C to 120°C.
W 61801-2Z Bearing Typical Application Areas
This bearing's combination of a compact size, corrosion resistance, and reliability makes it suitable for a wide range of precision equipment, including:
- Small Electric Motors and Gearboxes
- Medical and Dental Handpieces
- Precision Instruments and Optical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Food Processing and Packaging Machinery
