W 619/2 X
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 619/2 X
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0003 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
2 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
6 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.04mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
43 lbf
Radial static load rating
11 lbf
Limiting speed
110 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 619/2 X Bearing Product Overview & Core Advantages
The W 619/2 X is a miniature deep groove ball bearing designed for applications demanding compact size, high precision, and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its open design allows for versatile lubrication options and facilitates high-speed operation. This bearing is engineered to primarily handle radial loads efficiently, making it an ideal component for space-constrained, high-precision mechanisms requiring smooth and quiet operation.
W 619/2 X Bearing Model Code Explained, Specifications & Naming Convention
The model designation W 619/2 X can be broken down as follows:
- W: Indicates a bearing with a stainless steel construction.
- 619: Denotes the standard "619" series, which is characterized by an ultra-thin cross-section.
- /2: Specifies a 2 mm bore diameter.
- X: This suffix signifies a radial internal clearance group different from standard, typically a wider clearance (CN group as per specifications).
W 619/2 X Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments and applications requiring washdown.
- High-Speed Capability: The open seal type and lightweight stainless steel cage contribute to a high limiting speed of 110,000 rpm, minimizing friction and heat generation.
- Precision & Rigidity: Manufactured to P0 tolerance class (Normal), this bearing ensures consistent running accuracy and smooth operation, which is critical for precision instruments.
- Radial Load Capacity: The deep groove raceway and optimized internal geometry are designed to efficiently support radial dynamic and static loads (43 lbf and 11 lbf respectively) in a very compact envelope.
- Flexible Lubrication: The open design allows the bearing to be run without lubrication or with a user-applied lubricant tailored to specific application needs, such as high temperatures or extreme speeds.
W 619/2 X Bearing Typical Application Areas
This miniature bearing is ideally suited for:
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment.
- Small Motors: High-speed spindle motors in dental handpieces, miniature DC motors, and fans.
- Office Automation: Paper feed rollers in printers and scanners.
- Medical Devices: Small pumps, surgical tools, and diagnostic equipment.
- Robotics and RC Models: Joints, gears, and small drive systems where size and weight are critical.
