W 627/5-2ZS
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 627/5-2ZS
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.000407 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
8 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
27 lbf
Radial static load rating
10 lbf
Limiting speed
70 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 627/5-2ZS Bearing Product Overview & Core Advantages
The W 627/5-2ZS is a single row deep groove ball bearing designed for compact, high-precision applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle radial loads efficiently while being shielded on both sides (2ZS) to retain lubrication and exclude contaminants, ensuring long service life and reliable performance in demanding environments. This bearing is characterized by its miniature size (5mm bore) and is pre-lubricated with grease for immediate use.
W 627/5-2ZS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 627/5 | Basic bearing designation, indicating a single row deep groove ball bearing series with a 5 mm bore diameter. |
| 2Z | Signifies bearings with shields on both sides. This provides effective protection against contamination while allowing for higher rotational speeds compared to contact seals. |
| S | Indicates the bearing rings and rolling elements are made from stainless steel, providing enhanced corrosion resistance. |
W 627/5-2ZS Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All components, including the rings, balls, and cage, are made from stainless steel, ensuring superior corrosion resistance and durability in harsh or wash-down environments.
- Effective Sealing with Shields: The non-contact 2Z shields protect the bearing interior from dust and other particulates, while retaining the factory-applied grease. This contributes to a maintenance-free design and a long operational lifespan.
- Optimized for Radial Loads: The deep groove raceway and single row design are engineered to carry significant radial dynamic load ratings relative to its miniature size, making it ideal for applications with space constraints.
- Ready-to-Use Lubrication: Pre-lubricated with grease, the bearing is immediately operational and suitable for the specified temperature range of -30°C to 120°C.
W 627/5-2ZS Bearing Typical Application Areas
This miniature, corrosion-resistant bearing is ideally suited for:
- Precision Instruments and small measuring devices.
- Small electric motors and gearboxes.
- Medical and dental handpieces.
- Office automation equipment, such as printers and scanners.
- Radio-controlled models and drones.
