W 617/6
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 617/6
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0006 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
10 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
64 lbf
Radial static load rating
25 lbf
Limiting speed
75 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
No drawings available at the moment, will be launched soon
In Stock
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W 617/6 Bearing Product Overview & Core Advantages
The W 617/6 is a metric single row deep groove ball bearing engineered for high precision and reliable performance in compact spaces. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its primary function is to support radial loads efficiently. The bearing features an open design and comes without lubrication, providing flexibility for custom application-specific greasing. With its very small cross-section, it is an ideal solution for applications demanding minimal weight and space, such as miniature instruments and precision mechanisms.
W 617/6 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Indicates a specific manufacturer series or design for miniature deep groove ball bearings. |
| 617/6 | Denotes the bearing size series (61) and the bore diameter (6 mm). |
| No Seals/Suffixes | The absence of additional suffix codes confirms an open (unsealed) design and standard CN radial internal clearance. |
W 617/6 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made of stainless steel, providing superior resistance to rust and corrosion, making it suitable for harsh environments and cleanroom applications.
- High Precision & Low Noise: Manufactured to P0 tolerance class with a CN clearance, this bearing ensures smooth, quiet, and precise operation, which is critical for sensitive equipment.
- Compact and Lightweight: With dimensions of just 6x10x2.5 mm and a weight of only 0.0006 kg, it is designed for applications where space and weight are at a premium.
- Versatile Lubrication Options: The open seal type and delivery in an unlubricated state allow engineers to select the optimal high-speed or specialty grease for their specific operating conditions, including the wide temperature range of -30°C to 120°C.
W 617/6 Bearing Typical Application Areas
This miniature bearing is ideally suited for:
- Precision Instruments (optical encoders, measuring devices)
- Small Electric Motors (for drones, medical devices, miniature fans)
- Office Automation Equipment (printers, scanners)
- Robotics and RC Models (small joints, gearboxes)
- Any application requiring a reliable, corrosion-resistant, and compact radial bearing.
