W 618/6
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 618/6
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0018 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
13 mm
Outside diameter tolerance
-0.008mm to 0
Width
3.5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
139 lbf
Radial static load rating
50 lbf
Limiting speed
67 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
Price:
$ 3.2
/ each
In Stock
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W 618/6 Bearing Product Overview & Core Advantages
The W 618/6 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance and is suitable for use in demanding environments. Its compact design, with a 6 mm bore and 3.5 mm width, provides a high-performance solution where space is limited. This bearing is characterized by its open design for high-speed operation and is supplied without lubrication, allowing for custom greasing to meet specific application requirements.
Model Code Breakdown
The model designation W 618/6 can be interpreted as follows:
- W: Designates a series of stainless steel deep groove ball bearings.
- 618: Indicates the bearing series, defining the cross-sectional dimensions.
- /6: Specifies the bore diameter of the bearing, which is 6 mm.
W 618/6 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The use of stainless steel for all critical components ensures superior corrosion resistance and makes the bearing ideal for applications exposed to moisture, chemicals, or requiring frequent washdowns.
- High-Speed Capability: The open design, combined with a precision-stamped stainless steel cage, minimizes friction and allows for a high limiting speed of 67,000 rpm.
- Radial Load Capacity: Engineered to handle significant radial dynamic loads (139 lbf) efficiently, providing reliable performance in compact assemblies.
- Standard Tolerance & Clearance: Manufactured to P0 tolerance class and CN radial internal clearance, ensuring consistent performance and interchangeability.
W 618/6 Bearing Typical Application Areas
This miniature bearing is ideally suited for:
- Precision instruments and measuring devices
- Small electric motors and gearboxes
- Medical and dental equipment
- Food processing machinery (due to its stainless steel construction)
- Office automation equipment and small fans
