WBB1-8703
WBB Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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WBB1-8703 Bearing Product Overview & Core Advantages
The WBB1-8703 is a metric single row deep groove ball bearing engineered for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily handle radial loads and is characterized by its open design and P0 tolerance class, making it suitable for high-speed operations up to 90,000 rpm. Its minimal weight and compliance with RoHS and REACH standards make it an ideal choice for demanding, compact assemblies.
WBB1-8703 Bearing Model Code Explained, Specifications & Naming Convention
- WBB1-8703: Base model number indicating a specific series of miniature ball bearings.
- Open Seal Type: The bearing features no seals or shields (Open), allowing for higher speed capability and requiring external lubrication management.
- P0 Tolerance Class: Denotes standard dimensional and geometrical tolerances, suitable for most general applications.
- CN Radial Clearance: Specifies the standard, normal range of internal clearance.
- Lubrication: None: The bearing is supplied without grease, providing flexibility for application-specific lubrication.
WBB1-8703 Bearing Structural Features & Performance Benefits
The single row deep groove structure with conforming raceways ensures smooth operation and efficient radial load distribution. The use of a stainless steel cage integrated with the rings minimizes weight and facilitates high-speed operation. The open design reduces friction, directly contributing to the high limiting speed of 90,000 rpm. The all-stainless-steel construction (rings, balls, and cage) provides superior corrosion resistance, ensuring longevity in harsh environments and a broad operating temperature range from -30°C to 120°C.
WBB1-8703 Bearing Typical Application Areas
This miniature precision bearing is ideally suited for applications where space is limited and reliability is critical. Common uses include:
- Small precision motors and stepper motors
- Medical and dental handpieces
- Optical encoders and instrumentation
- Office automation equipment
- Robotics and miniature gearboxes
