W 628/7-2RS1
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 628/7-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0029 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
14 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
149 lbf
Radial static load rating
58 lbf
Limiting speed
28 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 628/7-2RS1 Bearing Product Overview & Core Advantages
The W 628/7-2RS1 is a sealed single row deep groove ball bearing designed for applications demanding high reliability and maintenance-free operation. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle radial loads efficiently while providing robust protection against contamination with its integrated seals, making it ideal for compact, precision assemblies where long service life is critical.
W 628/7-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| W 628/7 | Indicates the bearing series and size. The bore diameter is 7 mm. |
| -2RS1 | Signifies that the bearing is fitted with two rubber seals (RS) on both sides. The "1" denotes a specific seal design, providing effective protection against dust and moisture ingress while retaining lubricant. |
W 628/7-2RS1 Bearing Structural Features & Performance Benefits
- Robust Sealing: The 2RS1 contact seals ensure a high degree of protection, making the bearing suitable for harsh environments and contributing to its maintenance-free characteristic.
- Full Stainless Steel Construction: All components, including rings, balls, and cage, are made from stainless steel, providing superior corrosion resistance and enabling use in a wide temperature range from -30°C to 120°C.
- Precision and Reliability: Manufactured to P0 tolerance class with a standard CN radial internal clearance, this bearing ensures consistent performance and smooth operation in a variety of applications.
- Optimized Lubrication: The bearing is pre-lubricated with grease, which is sealed for life, eliminating the need for re-lubrication and simplifying assembly and long-term use.
W 628/7-2RS1 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring a compact, corrosion-resistant, and sealed solution. Common uses include:
- Medical and Dental Equipment
- Food Processing Machinery
- Small Precision Electric Motors
- Office Automation Equipment
- Instrumentation and Control Devices
