W 61702
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61702
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0031 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
21 mm
Outside diameter tolerance
-0.009mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
118 lbf
Radial static load rating
65 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 61702 Bearing Product Overview & Core Advantages
The W 61702 is a single row deep groove ball bearing designed for high-precision applications requiring reliable radial load capacity. Constructed entirely from stainless steel, it offers excellent corrosion resistance and is suitable for a wide operating temperature range. Its compact design, with a minimal cross-section, makes it ideal for space-constrained assemblies where precision and durability are paramount. The bearing is supplied in an open configuration, allowing for custom lubrication solutions, and adheres to P0 tolerance class for consistent performance.
W 61702 Bearing Model Code Explained, Specifications & Naming Convention
| Prefix / Suffix | Technical Meaning |
|---|---|
| W | Manufacturer's series designation for stainless steel, miniature, and instrument bearings. |
| 61 | Bearing series, indicating a deep groove design with specific dimensional proportions. |
| 7 | Bore diameter code. When combined with "02", it specifies a 15 mm bore diameter. |
| 02 | Bore diameter code. "02" corresponds to a 15 mm bore. |
| Open (No Seal Suffix) | The bearing is supplied without seals or shields, offering flexibility for application-specific lubrication. |
W 61702 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments, including those requiring washdown or exposure to certain chemicals.
- High Precision & Low Noise: Manufactured to P0 tolerance class with a CN radial internal clearance, this bearing ensures smooth, quiet operation and precise rotational accuracy, which is critical for sensitive instrumentation.
- Compact and Lightweight Design: With an ultra-thin 4 mm width and a total weight of only 0.0031 kg, this bearing is engineered for applications where minimizing size and mass is essential without sacrificing performance.
- High-Speed Capability: The optimized geometry and stainless steel construction allow for a limiting speed of 40,000 rpm, supporting applications that demand high rotational velocities.
W 61702 Bearing Typical Application Areas
This bearing is ideally suited for:
- Precision Instruments and optical devices
- Small electric motors and miniature gearboxes
- Medical devices and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Robotics and small-scale automation
