W 636-2Z
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 636-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.013 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.009mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
447 lbf
Radial static load rating
175 lbf
Limiting speed
38 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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W 636-2Z Bearing Product Overview & Core Advantages
The W 636-2Z is a single row deep groove ball bearing designed for high-performance applications requiring reliable radial load capacity and consistent operation. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in the integrated shields (2Z) which retain factory-applied grease and effectively exclude contaminants, ensuring long service life with minimal maintenance. This bearing is characterized by its compact design, making it ideal for applications with space constraints while delivering high rotational accuracy.
W 636-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing Series |
| 636 | Bore Diameter: 6 mm, Outside Diameter: 22 mm, Width: 7 mm |
| 2Z | Shielded on both sides for contaminant protection and grease retention. |
W 636-2Z Bearing Structural Features & Performance Benefits
- Robust Single Row Design: The deep groove raceway and stainless steel construction provide reliable support for radial loads and moderate axial loads in both directions.
- Corrosion Resistance: All components (rings, balls, cage) are made of stainless steel, making the bearing suitable for harsh environments and washdown applications.
- Pre-Lubricated & Sealed: The bearing is filled with grease and features non-contact shields on both sides (2Z), offering a maintenance-free solution that protects against contamination and lubricant loss, contributing to a long operational lifespan.
- Precision & High-Speed Capability: Manufactured to P0 tolerance class with a standard CN radial internal clearance, it ensures smooth and quiet operation, suitable for applications with a limiting speed of 38,000 rpm.
W 636-2Z Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Precision Instruments and Medical Devices
- Small Electric Motors and Gearboxes
- Food Processing and Packaging Machinery (due to stainless steel and sealed design)
- Office Automation Equipment (e.g., printers, scanners)
- Various Low-Torque, High-Speed Drives
