W 61701 R-2ZS
W Series Stainless Steel Flanged Bearings
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Part No.
Part No.
W 61701 R-2ZS
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0031 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
18 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
19.5 mm
Flange thickness
0.8 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
118 lbf
Radial static load rating
60 lbf
Limiting speed
38 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 61701 R-2ZS Bearing Product Overview & Core Advantages
The W 61701 R-2ZS is a metric miniature deep groove ball bearing designed for applications demanding high precision and reliability in compact spaces. As a single row bearing with dual shielded (2ZS) construction, it offers effective protection against contamination while retaining lubrication. Its primary advantage lies in handling radial loads efficiently, making it ideal for high-speed operations with a limiting speed of 38,000 rpm. Manufactured entirely from stainless steel (rings, balls, and cage), it provides excellent corrosion resistance and is suitable for a wide temperature range from -30°C to 120°C. This bearing is pre-lubricated with grease, ensuring maintenance-free operation and long service life, compliant with ROHS and REACH standards.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W | Designates a stainless steel deep groove ball bearing series |
| 61701 | Indicates the bearing size series: bore diameter 12 mm, outside diameter 18 mm, width 4 mm |
| R | Specifies a flanged outer ring design for simplified mounting and axial location |
| 2ZS | Denotes contact seals on both sides, providing superior protection against contaminants and retaining grease effectively |
W 61701 R-2ZS Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore diameter of 12 mm, outside diameter of 18 mm, and a narrow width of 4 mm, this bearing is ideal for space-constrained applications. The flanged outer ring (flange OD: 19.5 mm) facilitates easy and secure mounting, reducing assembly time and cost.
- Robust Load Capacity: Engineered to handle radial dynamic load rating of 118 lbf and radial static load rating of 60 lbf, ensuring reliable performance under various operational stresses.
- High-Speed Capability: The stainless steel cage and optimized design enable a limiting speed of 38,000 rpm, making it suitable for high-speed miniature machinery.
- Maintenance-Free Operation: The dual contact seals (2ZS) effectively shield against dust and moisture, while the pre-applied grease lubrication ensures long-term, maintenance-free performance, even in demanding environments.
- Corrosion Resistance & Compliance: Constructed entirely from stainless steel, it offers excellent resistance to corrosion and is compliant with ROHS and REACH standards, making it environmentally friendly and suitable for sensitive applications.
W 61701 R-2ZS Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment requiring miniature bearings with high accuracy and reliability.
- Small Motors & Drives: Stepper motors, DC micromotors, and fan motors where high-speed operation and compact size are critical.
- Medical Devices: Dental handpieces, surgical tools, and diagnostic equipment benefiting from stainless steel construction and corrosion resistance.
- Office Automation: Printers, scanners, and copiers utilizing flanged bearings for precise axial positioning and reduced vibration.
- Robotics & Automation: Small robotic joints, actuators, and guidance systems requiring low-friction and maintenance-free components.
