W 617/9
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 617/9
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0012 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
14 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
117 lbf
Radial static load rating
53 lbf
Limiting speed
60 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 617/9 Bearing Product Overview & Core Advantages
The W 617/9 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance and reliable performance. Its compact design, with a minimal cross-section, makes it ideal for applications where space is limited and high rotational speeds are required. This bearing is supplied open (without seals) and unlubricated, providing flexibility for custom lubrication solutions in various operating environments.
W 617/9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing Series |
| 617 | Extra-Thin, Extra-Light Series Designation |
| 9 | Bore Diameter: 9 mm |
| (No Suffix) | Open (No Seal/Shield), Unlubricated |
W 617/9 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: The 617 series cross-section allows for integration into extremely compact assemblies, contributing to overall system weight reduction.
- High-Speed Capability: The single-row design with a stainless steel cage and optimized internal geometry enables a high limiting speed of 60,000 rpm, suitable for demanding high-speed applications.
- Corrosion Resistance: Manufactured entirely from stainless steel (rings, balls, cage), this bearing is highly resistant to corrosion, making it suitable for use in humid, wash-down, or chemically aggressive environments.
- Standard Precision & Clearance: Manufactured to P0 (Normal) tolerance class with a CN (Normal) radial internal clearance, ensuring reliable and consistent performance for a wide range of general applications.
W 617/9 Bearing Typical Application Areas
This miniature ball bearing is commonly specified in:
- Precision Instruments: Optical encoders, measuring devices, and small medical instruments.
- Small Electric Motors: High-speed spindles in drones, dental handpieces, and miniature fans.
- Office Automation Equipment: Printers, scanners, and copiers.
- Food & Beverage Processing Equipment: Where corrosion resistance and cleanability are paramount.
