D/W R166-2Z

D/W Series Stainless Steel Miniature Bearings

D/W R166-2Z D/W Series Stainless Steel Miniature Bearings
D/W R166-2Z D/W Series Stainless Steel Miniature Bearings

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Part No.
Part No. D/W R166-2Z

Basic Information

Bearing type Ball
System of measurement Inch
Construction Single Row
Weight 0.000819 kg
Tolerance class P0
Seal type Shielded
For load direction Radial

Main Dimensions

Bore diameter 0.18748"
Bore diameter tolerance -0.00019" to 0.00019"
Outside diameter 0.375"
Outside diameter tolerance -0.0007" to -0.00031"
Width 0.125"
Width tolerance -0.005" to 0"

Performance

Temperature range -30° to 120 °C
Radial dynamic load rating 91 lbf
Radial static load rating 31 lbf
Limiting speed 63 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
Price: $ 1.19 / each
In Stock

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D/W R166-2Z Bearing Product Overview & Core Advantages

The D/W R166-2Z is a precision single row deep groove ball bearing designed for demanding applications requiring high reliability and consistent performance. Manufactured entirely from stainless steel, this bearing offers excellent corrosion resistance. Its shielded (2Z) design provides effective protection against contaminant ingress while the pre-lubricated grease ensures smooth operation and long service life, making it an ideal choice for compact assemblies where maintenance is difficult.

D/W R166-2Z Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
D/W Manufacturer's series prefix
R166 Bearing size designation
2Z Bearing with shields on both sides for contaminant exclusion

D/W R166-2Z Bearing Structural Features & Performance Benefits

This bearing's performance is defined by its robust construction and material selection:

  • High Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, and cage), it is suitable for harsh environments and washdown applications.
  • Effective Sealing: The non-contact shields (2Z) on both sides protect the internal bearing components from dust and other particulates, enhancing operational reliability.
  • Ready-to-Use: Pre-lubricated with grease, the bearing is maintenance-free for its entire service life under normal operating conditions, simplifying installation and reducing long-term costs.
  • Precision Performance: Manufactured to P0 tolerance class and standard CN radial internal clearance, it provides consistent and reliable operation for a wide range of general-purpose applications.

D/W R166-2Z Bearing Typical Application Areas

The D/W R166-2Z is well-suited for a variety of applications requiring a compact, reliable, and corrosion-resistant ball bearing, including:

  • Medical and Dental Equipment
  • Food Processing Machinery
  • Small Precision Instruments
  • Office Automation Equipment
  • Low-Torque Electric Motors
  • Robotics and Small Actuators
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