W 603
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
W 603 Bearing Product Overview & Core Advantages
The W 603 is a metric single row deep groove ball bearing designed for high precision and reliable performance in compact spaces. Its open design and construction from corrosion-resistant stainless steel throughout (rings, balls, and cage) make it suitable for applications demanding cleanliness and resistance to harsh environments. This bearing is engineered to primarily handle radial loads efficiently, offering a robust solution for high-speed operation with a limiting speed of 90,000 rpm.
W 603 Bearing Model Code Explained, Specifications & Naming Convention
The model designation W 603 follows a standard industry naming convention. Here is a breakdown of its key characteristics implied by its specification:
- W: Often denotes a manufacturer series or a specific design feature.
- 6: Indicates the bearing series, typically relating to a thin-section or miniature deep groove design.
- 03: Specifies the bore diameter code. For this metric bearing, it corresponds to a 3 mm bore.
- Open (No Seal Suffix): The absence of a seal suffix (e.g., -2Z, -RS) indicates an open bearing, allowing for higher potential speeds and custom lubrication schemes.
- Stainless Steel Construction: The material specification for all core components ensures excellent corrosion resistance.
W 603 Bearing Structural Features & Performance Benefits
The W 603's performance is derived from its fundamental design and material selection:
- High-Speed Capability: The open structure and stainless steel cage minimize friction and drag, enabling a high limiting speed of 90,000 rpm, making it an effective high-speed bearing for its size.
- Corrosion Resistance: Manufactured entirely from stainless steel, this bearing is ideal for applications exposed to moisture, chemicals, or requiring frequent washdowns, ensuring long-term reliability.
- Precision & Low Noise: Built to P0 tolerance class and standard CN radial internal clearance, it provides consistent running accuracy and smooth, quiet operation.
- Compact and Lightweight: With dimensions of 3x9x3 mm and a weight of just 0.0008 kg, it is perfect for space-constrained and weight-sensitive designs.
W 603 Bearing Typical Application Areas
The combination of a small bearing size, high speed, and corrosion resistance makes the W 603 suitable for a wide range of precision equipment, including:
- Small precision electric motors and spindles
- Medical and dental handpieces
- Optical encoders and instrumentation
- Office automation equipment (e.g., printers, scanners)
- Radio-controlled models and drones
- Various miniature machinery and mechanisms
