WBB1-8708-2Z
WBB Series Stainless Steel Miniature Bearings
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Part No.
Part No.
WBB1-8708-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.002 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
14 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
104 lbf
Radial static load rating
43 lbf
Limiting speed
48 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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WBB1-8708-2Z Bearing Product Overview & Core Advantages
The WBB1-8708-2Z is a metric single row deep groove ball bearing engineered for precision and reliability in compact applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its primary advantage lies in its ability to efficiently handle radial loads while its shielded design ensures long-term performance. This bearing is characterized by its compact dimensions (8mm bore, 14mm OD, 4mm width), making it an ideal solution for applications where space is limited and high reliability is demanded.
WBB1-8708-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| WBB1-8708 | Manufacturer's base designation for a specific single row deep groove ball bearing series with an 8mm bore. |
| 2Z | Signifies that the bearing is equipped with shields on both sides. This provides effective protection against contamination while allowing for higher speeds compared to contact seals. |
WBB1-8708-2Z Bearing Structural Features & Performance Benefits
- Robust Construction: Manufactured with stainless steel rings, balls, and cage, this bearing provides superior corrosion resistance and durability in demanding environments.
- Radial Load Capacity: The deep groove raceway is optimized to support significant radial dynamic loads (104 lbf) and radial static loads (43 lbf).
- High-Speed Capability: The non-contact 2Z shields and grease lubrication contribute to a high limiting speed of 48,000 rpm, making it suitable for high-speed applications.
- Maintenance-Free Operation: The combination of pre-lubricated grease and shielded design creates a sealed-for-life unit, reducing maintenance needs and ensuring long service life.
- Precision Tolerance: Built to P0 (Normal) tolerance class and standard CN radial internal clearance, ensuring consistent and reliable performance.
WBB1-8708-2Z Bearing Typical Application Areas
This versatile miniature bearing is ideally suited for a wide range of compact and precision-driven applications, including:
- Small Electric Motors and Gearboxes
- Precision Instruments and Medical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Robotics and Small Actuators
- Radio-Controlled Models and Drones
