W 61803-2RZ
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61803-2RZ
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0079 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
26 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
400 lbf
Radial static load rating
286 lbf
Limiting speed
28 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
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In Stock
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W 61803-2RZ Bearing Product Overview & Core Advantages
The W 61803-2RZ is a metric single row deep groove ball bearing engineered for precision and reliability in compact applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its primary advantage lies in its sealed design (2RZ), which effectively retains lubrication and excludes contaminants, making it a low-maintenance solution. This bearing is designed to handle primarily radial loads and is characterized by its small cross-section, high limiting speed, and consistent performance within a wide temperature range, ensuring long service life in demanding environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing |
| 61803 | Basic series designation for a deep groove ball bearing with a 17 mm bore, 26 mm OD, and 5 mm width. |
| -2RZ | The bearing is fitted with non-contact rubber seals (RZ) on both sides. This provides effective protection against contamination while minimizing friction, contributing to the high limiting speed. |
W 61803-2RZ Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a width of only 5 mm and a weight of just 0.0079 kg, this bearing is ideal for applications with severe space and weight constraints.
- Corrosion Resistance: The use of stainless steel for all components (rings, balls, cage) ensures reliable operation in humid or corrosive environments, enhancing the bearing's service life.
- Sealed for Protection & Longevity: The non-contact 2RZ seals shield the internal components from dust and moisture. Combined with factory-preloaded grease lubrication, this creates a sealed-for-life unit that requires no relubrication, reducing maintenance needs.
- High-Speed Capability: The optimized internal geometry and low-friction seals enable a high limiting speed of 28,000 rpm, making it suitable for high-speed spindles and miniature motors.
- Standard Precision & Clearance: Manufactured to P0 (Normal) tolerance class and standard CN radial internal clearance, it provides consistent and reliable performance for a wide range of general applications.
W 61803-2RZ Bearing Typical Application Areas
This bearing's combination of small size, high speed, and sealed construction makes it a preferred choice in:
- Precision Instruments and medical devices
- Small electric motors and miniature gearboxes
- Office automation equipment (e.g., printers, scanners)
- Food processing and packaging machinery (benefiting from its stainless steel construction)
- Robotics and small precision mechanisms
