WBB1-8707 R-2Z

WBB Series Stainless Steel Flanged Miniature Bearings

WBB1-8707 R-2Z WBB Series Stainless Steel Flanged Miniature Bearings
WBB1-8707 R-2Z WBB Series Stainless Steel Flanged Miniature Bearings

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Part No.
Part No. WBB1-8707 R-2Z

Basic Information

Bearing type Ball
System of measurement Metric
Construction Single Row
Weight 0.0022 kg
Tolerance class P0
Seal type Shielded
For load direction Radial

Main Dimensions

Bore diameter 7 mm
Bore diameter tolerance -0.008mm to 0
Outside diameter 13 mm
Outside diameter tolerance -0.008mm to 0
Width 4 mm
Width tolerance -0.12mm to 0

Outer Ring Dimensions

Flange outer diameter 14.6 mm
Flange thickness 0.8 mm

Performance

Temperature range -30° to 120 °C
Radial dynamic load rating 70 lbf
Radial static load rating 32 lbf
Limiting speed 50 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 No drawings available at the moment, will be launched soon
In Stock
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WBB1-8707 R-2Z Bearing Product Overview & Core Advantages

The WBB1-8707 R-2Z is a single row deep groove ball bearing designed for high performance in compact spaces. Engineered from stainless steel for superior corrosion resistance, this shielded bearing is pre-lubricated with grease, offering a robust, low-maintenance solution. Its key advantage lies in its ability to handle significant radial loads efficiently while operating at high speeds, making it an ideal choice for applications demanding reliability and long service life within a specified temperature range.

WBB1-8707 R-2Z Bearing Model Code Explained, Specifications & Naming Convention

  • WBB1-8707: Base model number, indicating the bearing's core dimensions (7mm bore, 13mm OD).
  • R: This suffix often denotes a flanged outer ring, which aids in precise axial location and simplifies housing design.
  • 2Z: Signifies that the bearing is equipped with shields on both sides. This provides effective protection against contamination from solid particles while minimizing friction, contributing to the bearing's high limiting speed.

WBB1-8707 R-2Z Bearing Structural Features & Performance Benefits

The bearing's performance is a direct result of its precision construction:

  • Robust Load Capacity: The single row deep groove raceway and stainless steel construction provide a high dynamic and static load rating for its compact size, ensuring reliable operation under demanding radial loads.
  • High-Speed Capability: The combination of low-friction shields (2Z) and optimized grease lubrication allows the bearing to achieve a high limiting speed of 50,000 rpm, making it suitable for high-speed applications.
  • Enhanced Sealing & Longevity: The non-contact shields protect the internal components from contaminants, and the pre-applied grease ensures smooth operation from the start. This design offers a maintenance-free solution, reducing downtime and total cost of ownership.
  • Precision & Stability: Manufactured to P0 tolerance class with a standard CN radial clearance, it guarantees consistent performance and smooth running, which is critical for precision mechanisms.

WBB1-8707 R-2Z Bearing Typical Application Areas

This versatile bearing is ideally suited for a wide range of compact and high-speed machinery, including:

  • Small electric motors and spindle drives
  • Precision instruments and optical devices
  • Office automation equipment such as printers and scanners
  • Medical and dental handpieces
  • Radio-controlled models and small gearboxes
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