W 61900 R-2Z
W Series Stainless Steel Flanged Bearings
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Part No.
Part No.
W 61900 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.011 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.009mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
25 mm
Flange thickness
1.5 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
526 lbf
Radial static load rating
281 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Grease
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 61900 R-2Z Bearing Product Overview & Core Advantages
The W 61900 R-2Z is a metric single row deep groove ball bearing designed for exceptional performance in compact spaces. Engineered with stainless steel components, it offers excellent corrosion resistance and durability. Its core advantages include the ability to handle significant radial loads and moderate axial loads in both directions. The integral flanged design (outer diameter: 25 mm) facilitates precise and secure mounting, while the shielded construction protects against contaminant ingress, making it ideal for applications demanding high reliability and minimal maintenance.
W 61900 R-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| W | Designates a stainless steel bearing, providing enhanced corrosion resistance. |
| 61900 | The standard series designation for a miniature deep groove ball bearing with a 10 mm bore. |
| R | Indicates the bearing features an integral flange on the outer ring for simplified mounting and positioning. |
| 2Z | Signifies non-contact shields on both sides. This provides effective protection against dust and other particles while minimizing friction, contributing to the high limiting speed. |
W 61900 R-2Z Bearing Structural Features & Performance Benefits
- Robust Construction: Manufactured entirely from stainless steel (rings, balls, and cage), this bearing ensures high corrosion resistance and operational longevity in harsh environments.
- High Load Capacity: The deep groove raceway and optimized geometry enable it to support a radial dynamic load rating of 526 lbf and a radial static load rating of 281 lbf, effectively handling combined loads.
- Flanged Outer Ring: The flange (25 mm outer diameter, 1.5 mm thickness) provides axial location, simplifies housing design, and increases mounting rigidity, preventing creep under load.
- Optimized for Speed & Longevity: The non-contact shields (2Z) protect the pre-lubricated grease from contamination without significantly increasing friction, allowing for a high limiting speed of 36,000 rpm. The standard CN radial internal clearance and P0 tolerance class ensure consistent, smooth operation.
- Maintenance-Free Operation: Pre-greased and sealed for life, the W 61900 R-2Z is a maintenance-free solution, reducing total cost of ownership.
W 61900 R-2Z Bearing Typical Application Areas
This bearing is ideally suited for compact, high-speed, and corrosion-sensitive applications, including:
- Precision Instruments and optical devices
- Small Electric Motors and miniature gearboxes
- Medical and Dental Handpieces
- Office automation equipment such as printers and scanners
- Robotics and small automation components
- Food processing machinery where stainless steel is required
