WBB1-8706 R-2Z
WBB Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
WBB1-8706 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0017 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
12 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
13.6 mm
Flange thickness
0.8 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
91 lbf
Radial static load rating
33 lbf
Limiting speed
56 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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WBB1-8706 R-2Z Bearing Product Overview & Core Advantages
The WBB1-8706 R-2Z is a single row deep groove ball bearing engineered for high precision and reliable performance in compact spaces. Featuring stainless steel construction throughout (rings, balls, and cage) and integral shielded seals, this bearing is designed to handle radial loads efficiently while offering excellent corrosion resistance. Its miniature size, combined with pre-applied grease lubrication, makes it an ideal precision bearing for applications demanding long service life and minimal maintenance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| WBB1-8706 | Basic bearing designation, indicating a specific series and size (6mm bore, 12mm OD). |
| R | Designates a flanged outer ring, which aids in precise axial location and simplifies housing design. |
| 2Z | Signifies non-contact shields on both sides. This provides effective protection against contaminant ingress while minimizing friction, contributing to the high limiting speed. |
WBB1-8706 R-2Z Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All components (rings, balls, cage) are manufactured from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments and clean applications.
- Flanged Outer Ring Design: The integral flange (Flange outer diameter: 13.6 mm) ensures easy and accurate mounting, prevents axial movement, and simplifies housing structures, reducing overall assembly costs.
- Optimized for High-Speed Operation: The combination of a low-friction stainless steel cage and non-contact 2Z shields allows for a high limiting speed of 56,000 rpm, making it a capable high-speed bearing.
- Maintenance-Free & Long-Lasting: Pre-lubricated with grease and sealed with shields, the bearing is ready for use and requires no relubrication, ensuring long-term, maintenance-free operation within its specified temperature range (-30° to 120 °C).
WBB1-8706 R-2Z Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment.
- Small Electric Motors: Miniature DC motors, stepper motors, and fan motors.
- Office Automation Equipment: Printers, scanners, and copiers.
- Medical Devices: Small pumps, dental handpieces, and diagnostic equipment.
- Robotics and Automation: Small joints, guides, and actuators requiring compact bearing dimensions.
