WBB1-8708-2RS1
WBB Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
WBB1-8708-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.002 kg
Tolerance class
P0
Seal type
Sealed
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
28 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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WBB1-8708-2RS1 Bearing Product Overview & Core Advantages
The WBB1-8708-2RS1 is a single row deep groove ball bearing engineered for precision and reliability in compact spaces. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its sealed design (2RS1) and pre-lubrication, making it a maintenance-free solution ideal for applications requiring protection from contaminants. This bearing is designed to primarily handle radial loads efficiently within a wide operating temperature range.
WBB1-8708-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| WBB1-8708 | Basic bearing designation indicating the bearing size (8mm bore, 14mm OD, 4mm width). |
| 2RS1 | Signifies contact-type rubber seals on both sides. This provides superior protection against dust and moisture compared to non-contact shields, ensuring the integrity of the pre-applied grease. |
WBB1-8708-2RS1 Bearing Structural Features & Performance Benefits
- Robust Sealed Construction: The dual RS1 seals effectively retain lubrication and exclude contaminants, enabling reliable operation in harsh environments and contributing to its maintenance-free characteristic.
- Corrosion Resistance: Manufactured from stainless steel rings, balls, and cage, this bearing is suitable for applications exposed to moisture or corrosive agents, enhancing its longevity.
- Compact and Lightweight: With a minimal cross-section (4mm width) and a weight of only 0.002 kg, it is ideal for space-constrained and weight-sensitive designs.
- Optimized Performance: The combination of CN radial internal clearance, P0 tolerance class, and factory-applied grease ensures smooth, quiet running and a consistent performance up to its limiting speed.
WBB1-8708-2RS1 Bearing Typical Application Areas
This versatile miniature bearing is commonly specified in:
- Small Precision Electric Motors
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation and Control Devices
- Food Processing Equipment (where corrosion resistance is critical)
