W 61902 R
W Series Stainless Steel Flanged Bearings
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Part No.
Part No.
W 61902 R
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.016 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.009mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
30.5 mm
Flange thickness
1.5 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
834 lbf
Radial static load rating
504 lbf
Limiting speed
34 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 61902 R Bearing Product Overview & Core Advantages
The W 61902 R 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. Its compact flanged design (30.5 mm outer diameter) facilitates easy mounting and precise axial location, making it ideal for applications demanding high reliability and dimensional stability within a standard P0 tolerance class.
Model Code Breakdown
The model number W 61902 R can be interpreted as follows:
- W: Designates a stainless steel construction.
- 61902: Indicates the bearing series and size. '61' is a series for deep groove ball bearings with a flanged outer ring, '9' often relates to a specific internal design, and '02' specifies a 15 mm bore diameter.
- R: Signifies a standard radial internal clearance (corresponding to CN group).
W 61902 R Bearing Structural Features & Performance Benefits
- Flanged Outer Ring: The integrated flange (30.5 mm OD, 1.5 mm thick) simplifies bearing mounting and positioning within a housing, reducing assembly time and cost.
- All-Stainless-Steel Construction: Provides superior resistance to corrosion and is suitable for a wide temperature range from -30°C to 120°C, ensuring long service life in harsh environments.
- High-Speed Capability: The lightweight, stamped stainless steel cage contributes to a high limiting speed of 34,000 rpm, supporting efficient operation.
- Precision & Load Capacity: Manufactured to P0 tolerance class with a radial dynamic load rating of 834 lbf and a static rating of 504 lbf, ensuring consistent performance and durability under radial loads.
W 61902 R Bearing Typical Application Areas
This bearing is commonly specified in:
- Precision instruments and medical devices
- Small electric motors and gearboxes
- Office automation equipment (e.g., printers, scanners)
- Food processing and packaging machinery (benefiting from its stainless steel and open design)
- Various machinery requiring compact, corrosion-resistant flanged bearings for radial support.
