W 628-2RS1
W Series Stainless Steel Miniature Bearings
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W 628-2RS1 Bearing Product Overview & Core Advantages
The W 628-2RS1 is a sealed single row deep groove ball bearing designed for high reliability in demanding applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its primary advantage lies in its ability to handle significant radial loads while also accommodating moderate axial loads in both directions. The integral contact seals (2RS1) and pre-applied grease lubrication ensure long-term, maintenance-free operation, making it an ideal choice for applications requiring durability and consistent performance within a wide temperature range.
Model Code Breakdown
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| W | Stainless Steel Bearing | Provides excellent corrosion resistance for harsh environments. |
| 628 | Standard Bearing Series (8mm Bore, 24mm OD, 8mm Width) | Defines the core bearing dimensions for interchangeability. |
| 2RS1 | Double Contact Seals on Both Sides | Offers superior protection against contaminants and retains lubricant, enabling maintenance-free operation. |
W 628-2RS1 Bearing Structural Features & Performance Benefits
Deep Groove Raceway & Single Row Design: The optimized raceway geometry allows for smooth operation under high radial loads and facilitates high limiting speeds up to 20,000 rpm.
Full Complement Stainless Steel Construction: All components, including rings, balls, and the cage, are made from stainless steel. This ensures dimensional stability, resistance to corrosion, and compatibility with a wide operating temperature range from -30°C to 120°C.
Integrated Sealing & Lubrication: The 2RS1 seals provide an effective barrier against dust and moisture. Combined with the factory-applied grease, this creates a sealed-for-life system that minimizes friction, reduces wear, and eliminates the need for relubrication.
Standard Internal Clearance & Tolerance: Manufactured to CN radial internal clearance and P0 tolerance class, this bearing delivers consistent and reliable performance for a broad range of general-purpose applications.
W 628-2RS1 Bearing Typical Application Areas
The W 628-2RS1 is widely used in applications where corrosion resistance, reliability, and low maintenance are critical. Key industries and equipment include:
- Food & Beverage Processing Machinery (conveyors, mixers)
- Medical and Laboratory Equipment
- Chemical Handling Pumps and Valves
- Agricultural Machinery in wet or corrosive environments
- Electric Motors and Small Gearboxes requiring sealed units
