W 61702 R-2Z
W Series Stainless Steel Flanged Bearings
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Part No.
Part No.
W 61702 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0036 kg
Tolerance class
P0
Seal type
Shielded
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
Outer Ring Dimensions
Flange outer diameter
22.5 mm
Flange thickness
0.8 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
118 lbf
Radial static load rating
65 lbf
Limiting speed
32 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 61702 R-2Z Bearing Product Overview & Core Advantages
The W 61702 R-2Z is a single row deep groove ball bearing designed for compact applications requiring high precision and reliability. As a metric bearing, it excels in handling primarily radial loads and is constructed entirely from stainless steel for enhanced corrosion resistance. Its key advantages include a shielded design for contaminant protection, pre-lubrication for immediate operation, and a flanged outer ring for simplified mounting and axial location. This combination makes it an ideal choice for applications demanding a long service life and minimal maintenance in challenging environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W 61702 | Basic bearing designation for a single row deep groove ball bearing with a 15 mm bore diameter. |
| R | Denotes a flanged outer ring, which aids in axial location and simplifies housing design. |
| 2Z | Signifies shielded on both sides. This provides effective protection against solid contaminants while maintaining low friction. |
W 61702 R-2Z Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a 4 mm width and a weight of only 0.0036 kg, this bearing is engineered for space-constrained and weight-sensitive applications.
- Robust Stainless Steel Construction: All components, including the rings, balls, and cage, are made from stainless steel, offering excellent resistance to corrosion and enabling use in a wide temperature range from -30°C to 120°C.
- Flanged Outer Ring: The flange (22.5 mm outer diameter) provides positive axial location, simplifies mounting, and can reduce the need for complex housing shoulders.
- Shielded & Pre-lubricated: The 2Z shields protect the internal bearing components from dust and other particles. Combined with factory-applied grease lubrication, this ensures quiet operation and a long, maintenance-free service life under normal conditions.
- Precision & Load Capacity: Manufactured to P0 tolerance class with a CN radial internal clearance, it offers reliable performance. The radial dynamic load rating of 118 lbf and static load rating of 65 lbf make it suitable for a variety of light to moderate load applications.
W 61702 R-2Z Bearing Typical Application Areas
- Small Electric Motors: Ideal for spindle support in miniature and micro motors.
- Precision Instruments & Medical Devices: Used in optical encoders, dental handpieces, and small analytical instruments.
- Office Automation Equipment: Found in printers, scanners, and copiers.
- Radio-Controlled Models & Drones: Suitable for motor and gearbox applications in hobbyist and professional-grade models.
- Food Processing & Packaging Machinery: The stainless steel construction is beneficial in environments requiring washdown or corrosion resistance.
