W 61808
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61808
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.029 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.013mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
877 lbf
Radial static load rating
843 lbf
Limiting speed
16 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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W 61808 Bearing Product Overview & Core Advantages
The W 61808 is a single row deep groove ball bearing designed for high-precision applications requiring reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include a compact design with a 7 mm width, making it ideal for space-constrained assemblies, and the ability to accommodate primarily radial loads. Manufactured to P0 tolerance class, it ensures consistent and precise operation, suitable for applications demanding high reliability and dimensional stability.
W 61808 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| W | Designates a stainless steel deep groove ball bearing. |
| 61 | Indicates the bearing series, defining the cross-sectional dimensions. |
| 808 | Specifies the bore diameter (40 mm) and the external dimensions. |
| Open (Seal Type) | No seals or shields, allowing for higher limiting speeds and easy re-lubrication, but requiring a clean operating environment. |
| None (Lubrication) | Supplied without lubrication, providing flexibility for the user to apply a lubricant suitable for the specific application. |
W 61808 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, including those with exposure to water or chemicals.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 16,000 rpm, enabling use in demanding high-rotation applications.
- Radial Load Capacity: Engineered to handle significant radial dynamic load ratings (877 lbf), ensuring durability and long service life under load.
- Precision & Stability: Manufactured to P0 tolerance and standard CN radial internal clearance, this bearing guarantees smooth, low-vibration, and precise running, which is critical for accuracy in sensitive equipment.
- Compact & Lightweight: With a slim 7 mm width and a weight of only 0.029 kg, it is an excellent choice for applications where saving space and reducing weight are priorities.
W 61808 Bearing Typical Application Areas
This single row ball bearing is ideally suited for a wide range of applications, including:
- Food Processing & Packaging Machinery (due to its corrosion-resistant stainless steel construction and compliance with RoHS/REACH).
- Medical and Laboratory Equipment (where precision, cleanliness, and reliability are paramount).
- Precision Instruments and Optical Devices (benefiting from its low vibration and high running accuracy).
- Electric Motors and Small Gearboxes (utilizing its high-speed capability and radial load support).
- Agricultural and Marine Equipment (in components requiring resistance to moisture and corrosive agents).
