W 619/9
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 619/9
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.007 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
20 mm
Outside diameter tolerance
-0.009mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
438 lbf
Radial static load rating
209 lbf
Limiting speed
50 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 619/9 Bearing Product Overview & Core Advantages
The W 619/9 is a metric single row deep groove ball bearing engineered for precision applications requiring high reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily handle radial loads and is characterized by its compact design with a 9 mm bore. Its open seal type allows for versatile lubrication options, making it suitable for high-speed operation up to 50,000 rpm. The combination of a P0 tolerance class and standard CN radial internal clearance ensures consistent performance and easy integration into precision assemblies.
Model Code Breakdown
The model designation "W 619/9" can be interpreted as follows:
- W: Indicates the manufacturer's series or prefix.
- 619: Signifies the bearing series, typically denoting a deep groove ball bearing with a specific cross-section.
- /9: Specifies the bore diameter of 9 mm.
W 619/9 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made of stainless steel, providing superior corrosion resistance and making the bearing ideal for harsh environments or applications requiring washdown.
- High-Speed Capability: The open design and stainless steel cage minimize friction and allow for a high limiting speed of 50,000 rpm, suitable for demanding applications.
- Precision Performance: Manufactured to P0 tolerance class (Normal) and standard CN radial internal clearance, this bearing offers reliable and predictable operation for general precision uses.
- Radial Load Capacity: Engineered to efficiently carry radial dynamic and static loads of 438 lbf and 209 lbf respectively, ensuring durability in operation.
W 619/9 Bearing Typical Application Areas
This bearing is commonly used in:
- Precision instruments and measuring devices
- Small electric motors and spindles
- Medical and dental equipment
- Food processing and packaging machinery (due to stainless steel construction)
- Office automation equipment
