RW156zz

RW Series Extended Inner Ring Miniature Bearings

RW156zz RW Series Extended Inner Ring Miniature Bearings
RW156zz RW Series Extended Inner Ring Miniature Bearings

Image may differ from product. See technical specification for details.

Part No.
Part No. RW156zz

Basic Information

Bearing type Ball
System of measurement Inch
Construction Single Row
Weight 0.45 g
Tolerance class ABEC1
Seal type Shielded
For load direction Radial

Main Dimensions

Bore diameter 0.1875"
Bore diameter tolerance -0.0003" to 0"
Outside diameter 0.3125"
Outside diameter tolerance -0.0003" to 0"
Width 0.125"
Width tolerance -0.005" to 0"

Inner Ring Dimensions

Inner ring type Extended
Inner ring width 0.1562"
Shoulder diameter inner ring 0.221"

Ball & Washer Dimensions

Ball diameter 0.0394"
Ball quantity 10

Performance

Temperature range -86 to 230 °F
Radial dynamic load rating 69 lbf
Radial static load rating 27 lbf
Limiting speed 53 X 1000 rpm
Lubrication Required
Radial internal clearance MC3
Radial internal clearance 0.00008" to 0.0005"

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Stainless Steel
Shield material 300 Series Stainless Steel

Environment & Compliance

REACH Compliant
ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
Price: $ 2.89 / each
In Stock

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RW156zz Bearing Product Overview & Core Advantages

The RW156zz is a single row deep groove ball bearing designed for precision applications requiring reliable radial load capacity in compact spaces. Featuring shielded construction and manufactured to ABEC1 tolerance class, this inch-series bearing delivers consistent performance with a limiting speed of 53,000 rpm. Its extended inner ring facilitates easier installation and secure positioning, while the stainless steel cage and shields ensure corrosion resistance and durability in demanding environments.

RW156zz Bearing Model Code Explained, Specifications & Naming Convention

Suffix Code Technical Meaning Performance Benefit
zz Double-sided metal shields Provides effective contamination protection while allowing high-speed operation
Extended Inner Ring Inner ring extends beyond bearing width Simplifies mounting and improves axial positioning accuracy

RW156zz Bearing Structural Features & Performance Benefits

Optimized Load Distribution: The deep groove raceway and 10 precision balls ensure efficient radial load distribution, supporting the 69 lbf dynamic load rating for extended service life.

High-Speed Capability: The stainless steel cage maintains ball alignment at speeds up to 53,000 rpm, while the MC3 radial clearance (0.00008" to 0.0005") accommodates thermal expansion during high-speed operation.

Enhanced Protection System: 300 series stainless steel shields provide superior corrosion resistance and particle exclusion, making the bearing suitable for contaminated environments without significant speed reduction.

Precision Engineering: Manufactured to ABEC1 tolerance standards with tight dimensional control (±0.0003" on diameters), ensuring consistent performance in precision applications.

RW156zz Bearing Typical Application Areas

  • Small precision motors and miniature spindles
  • Medical devices and dental handpieces
  • Optical encoders and precision instrumentation
  • Office automation equipment and small power tools
  • Robotic joints and miniature automation systems
  • Aerospace components requiring inch-dimension bearings
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