W 628/8-2RS1
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 628/8-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0039 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
16 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
161 lbf
Radial static load rating
67 lbf
Limiting speed
26 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 628/8-2RS1 Bearing Product Overview & Core Advantages
The W 628/8-2RS1 is a metric single row deep groove ball bearing designed for high-performance applications requiring reliable operation and compact design. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its sealed design (2RS1) and pre-lubrication, providing robust radial load capacity and protection against contaminants, making it suitable for applications demanding maintenance-free operation and long service life within a wide temperature range.
W 628/8-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 628/8 | Basic bearing series designation with an 8 mm bore diameter. |
| 2RS1 | Features contact seals on both sides. The "RS1" type seal provides effective protection against dust and moisture while retaining lubricant. |
W 628/8-2RS1 Bearing Structural Features & Performance Benefits
- Robust Sealed Construction: The double-sided contact seals (2RS1) effectively shield the bearing's internals from contaminants, significantly enhancing reliability and lifespan in harsh environments. This contributes to its maintenance-free characteristic.
- Stainless Steel Build: All critical components, including rings, balls, and cage, are made from stainless steel, offering superior corrosion resistance and suitability for applications exposed to moisture or chemicals.
- Optimized for Radial Loads: The single row deep groove geometry is engineered to efficiently carry radial dynamic and static loads, providing stable performance in compact spaces.
- Pre-lubricated & Ready-to-Use: Filled with grease from the factory, the bearing is immediately operational, simplifying installation and ensuring optimal performance from the start across its specified temperature range.
W 628/8-2RS1 Bearing Typical Application Areas
This precision bearing is ideally suited for a variety of compact and demanding applications, including:
- Small Electric Motors and Gearboxes
- Medical and Dental Equipment
- Food Processing and Packaging Machinery
- Precision Instruments and Optical Devices
- Office Automation Equipment
