F688 2rs

F Series Flanged Miniature Bearings

F688 2rs F Series Flanged Miniature Bearings
F688 2rs F Series Flanged Miniature Bearings

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Part No.
Part No. F688 2rs

Basic Information

Bearing type Ball
System of measurement Metric
Construction Single Row
Weight 4.51 g
Tolerance class ABEC1
Seal type Sealed
For load direction Radial

Main Dimensions

Bore diameter 8 mm
Bore diameter tolerance -0.008mm to 0
Outside diameter 16 mm
Outside diameter tolerance -0.008mm to 0
Width 5 mm
Width tolerance -0.12mm to 0

Inner Ring Dimensions

Inner ring type Standard

Outer Ring Dimensions

Flange outer diameter 18 mm
Flange thickness 1.1 mm

Ball & Washer Dimensions

Ball diameter 2 mm
Ball quantity 10

Performance

Temperature range -30° to 110 °C
Radial dynamic load rating 239 lbf
Radial static load rating 107 lbf
Limiting speed 36 X 1000 rpm
Lubrication Required
Radial internal clearance 0.002mm to 0.013mm
Radial internal clearance MC3

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Stainless Steel
Shield material Nitrile Rubber

Environment & Compliance

REACH Compliant
ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
Price: $ 1.32 / each
In Stock

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F688 2rs Bearing Product Overview & Core Advantages

The F688 2rs is a metric sealed ball bearing designed for precision applications requiring reliable performance in compact spaces. As a single row deep groove ball bearing, it excels at handling radial loads while offering moderate axial load capacity. Its sealed construction with nitrile rubber contact seals (2RS) provides excellent contamination protection, making it ideal for applications where maintenance-free operation is essential. The bearing delivers stable performance across a wide temperature range while maintaining ABEC1 precision tolerances for consistent operation in demanding environments.

F688 2rs Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning Performance Benefit
F688 Basic bearing designation indicating 8mm bore, 16mm OD, 5mm width Compact dimensions for space-constrained applications
2RS Double rubber contact seals on both sides Superior contamination protection and lubricant retention

F688 2rs Bearing Structural Features & Performance Benefits

Optimized Sealing System: The double rubber contact seals (2RS) provide excellent protection against contaminants while maintaining low friction operation. This sealing configuration ensures long-term lubrication integrity and extends bearing service life in challenging environments.

Precision Engineering: Manufactured to ABEC1 tolerance class with chrome steel rings and balls, the bearing delivers consistent performance and smooth operation. The stainless steel cage ensures proper ball guidance and contributes to the bearing's high-speed capability up to 36,000 rpm.

Radial Load Capacity: With a dynamic load rating of 239 lbf and static load rating of 107 lbf, this bearing provides reliable performance in applications requiring sustained radial load support. The optimized internal geometry ensures even stress distribution across all 10 precision balls.

Compact Design Advantage: The miniature bearing dimensions (8mm bore × 16mm OD × 5mm width) combined with the integrated flange (18mm OD) enable easy mounting and precise positioning in compact assemblies.

F688 2rs Bearing Typical Application Areas

  • Small Electric Motors: Ideal for miniature DC motors, stepper motors, and servo motors requiring reliable sealed bearings
  • Office Equipment: Printer rollers, scanner mechanisms, and copier components
  • Medical Devices: Small pumps, dental handpieces, and laboratory equipment
  • Consumer Electronics: Cooling fans, disk drives, and small power tools
  • Precision Instruments: Optical devices, measuring equipment, and control systems
  • Automotive Accessories: Small actuators, sensors, and auxiliary motor applications
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