W 61801 R
W Series Stainless Steel Flanged Bearings
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Part No.
Part No.
W 61801 R
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0059 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
21 mm
Outside diameter tolerance
-0.009mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
23 mm
Flange thickness
1.1 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
339 lbf
Radial static load rating
202 lbf
Limiting speed
43 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 61801 R Bearing Product Overview & Core Advantages
The W 61801 R is a single row deep groove ball bearing designed for high-precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, this open-type bearing offers excellent corrosion resistance. Its primary function is to support radial loads efficiently, making it an ideal choice for applications demanding a small cross-section and high operational reliability. The bearing's P0 tolerance class and standardized CN radial internal clearance ensure consistent performance and ease of integration into precision assemblies.
W 61801 R Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| W | Indicates a stainless steel construction for the bearing rings and balls. |
| 61 | Denotes the bearing series, characterizing its ultra-thin cross-section and compact design. |
| 801 | Specifies the bore diameter code for a 12 mm bore. |
| R | Signifies a flanged outer ring, which facilitates precise axial location and simplifies housing design. |
W 61801 R Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a 5 mm width and a weight of only 0.0059 kg, this bearing is engineered for applications where space and weight are critical constraints.
- High Corrosion Resistance: The all-stainless steel construction (rings, balls, and cage) ensures reliable operation in corrosive environments and complies with ROHS and REACH standards.
- Flanged Outer Ring: The integrated flange (23 mm outer diameter) provides secure axial positioning, prevents bearing creep, and simplifies mounting, reducing assembly time and cost.
- Precision Performance: Manufactured to P0 tolerance class with a CN radial internal clearance, this bearing delivers consistent running accuracy and smooth operation.
- Wide Temperature Range: Suitable for operating temperatures from -30°C to 120°C, offering versatility for various industrial conditions.
W 61801 R Bearing Typical Application Areas
This miniature flanged bearing is ideally suited for:
- Precision Instruments and measuring devices
- Small electric motors and encoders
- Medical equipment and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Robotics and small gearboxes requiring compact bearing dimensions
