WBB1-8700-2Z
WBB Series Stainless Steel Miniature Bearings
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Part No.
Part No.
WBB1-8700-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.000103 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
1.2 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
4 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.04mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
14 lbf
Radial static load rating
4 lbf
Limiting speed
110 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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WBB1-8700-2Z Bearing Product Overview & Core Advantages
The WBB1-8700-2Z is a miniature single row deep groove ball bearing designed for ultra-compact precision applications. Engineered with stainless steel construction and integrated shields (2Z), this bearing offers reliable radial load capacity and smooth operation in demanding environments. Its metric dimensions and P0 tolerance class ensure high precision and interchangeability, making it an ideal solution for applications requiring high reliability and long service life with minimal maintenance.
WBB1-8700-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| WBB1-8700 | Basic bearing series designation, indicating a specific miniature deep groove ball bearing design. |
| 2Z | Signifies non-contact shields on both sides. This provides effective protection against contamination while minimizing friction and torque, contributing to the high limiting speed. |
WBB1-8700-2Z Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore diameter of 1.2 mm, outside diameter of 4 mm, and a weight of only 0.000103 kg, this bearing is engineered for space-constrained and weight-sensitive applications.
- Corrosion Resistance: The use of stainless steel for the rings, balls, and cage provides excellent corrosion resistance, ensuring durability and consistent performance.
- Pre-Lubricated & Low Maintenance: The bearing is pre-lubricated with grease, offering ready-to-install convenience and long-term, maintenance-free operation within its specified temperature range of -30°C to 120°C.
- High-Speed Capability: The combination of the 2Z shields and optimized internal geometry allows for a high limiting speed of 110,000 rpm, making it suitable for high-speed miniature devices.
WBB1-8700-2Z Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment.
- Small Motors: Miniature DC motors, stepper motors, and fan motors.
- Office Automation: Printers, scanners, and copiers.
- Robotics: Small robotic joints, drone gimbals, and miniature actuators.
- Consumer Electronics: Small cooling fans, handheld tools, and precision mechanisms.
