W 628/9-2RS1
W Series Stainless Steel Miniature Bearings
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W 628/9-2RS1 Bearing Product Overview & Core Advantages
The W 628/9-2RS1 is a single row deep groove ball bearing designed for exceptional performance in compact applications. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its sealed design (2RS1) with pre-filled grease, providing reliable, maintenance-free operation by effectively excluding contaminants and retaining lubrication. This bearing is engineered to handle primarily radial loads and is suitable for applications requiring high precision and reliability within a wide temperature range.
W 628/9-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
- W 628/9: Basic model number denoting a single row deep groove ball bearing series with a 9 mm bore diameter.
- -2RS1: Suffix indicating the bearing is fitted with two rubber contact seals (RS1), one on each side. This provides superior protection against contamination compared to non-contact shields.
W 628/9-2RS1 Bearing Structural Features & Performance Benefits
Robust Construction: The all-stainless-steel construction, including rings, balls, and cage, ensures high corrosion resistance and durability in harsh environments.
Effective Sealing & Lubrication: The 2RS1 rubber contact seals effectively prevent the ingress of moisture and debris while retaining the factory-applied grease lubrication. This combination enables maintenance-free operation and a long service life.
Precision & Load Capacity: Built to P0 tolerance class and standard CN radial internal clearance, this bearing offers reliable performance for its size, supporting a dynamic load rating of 171 lbf and a static load rating of 75 lbf.
W 628/9-2RS1 Bearing Typical Application Areas
This bearing's compact size, sealed design, and corrosion resistance make it ideal for a variety of applications, including:
- Small electric motors and gearboxes
- Medical and dental equipment
- Food processing machinery
- Precision instruments and optical devices
- Office automation equipment
