ND047AR0

1/2" Constant Section Bearings

ND047AR0 1/2" Constant Section Bearings
ND047AR0 1/2" Constant Section Bearings

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Part No.
Part No. ND047AR0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Endura-kote Plated
Construction Single Row
Weight 0.93 lbs
Tolerance class ABEC-1
ISO radial rating 3934 lbf
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 4.75"
Bore diameter tolerance -0.0010"– 0"
Outside diameter 5.75"
Outside diameter tolerance -0.0008"– 0"
Width 0.5"
Width tolerance +.000 –.005"
Contact angle 30 °

Inner Ring Dimensions

Shoulder diameter inner ring 5.12"

Outer Ring Dimensions

Outer ring large-side face inner diameter 5.49"
Outer ring small-side face inner diameter 5.38"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 1986 lbf
Radial static load rating 4150 lbf
Axial static load rating 4720 lbf
Static load moment 11970 lbf
Lubrication Lubricated
Radial internal clearance 0.0000 – 0.0005"

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Brass
Coating Chromium Plating

Environment & Compliance

ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
Price: $ 154.64 / each
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ND047AR0 Bearing Product Overview & Core Advantages

The ND047AR0 is a single row angular contact ball bearing engineered for high-performance applications requiring precision and reliability. Featuring an Endura-kote chromium plating for enhanced corrosion resistance and a 30° contact angle, this bearing is optimized to handle significant combined loads, including high axial loads in one direction. Its inch-series dimensions (4.75" bore, 5.75" OD) and ABEC-1 precision class make it an ideal choice for compact, high-rigidity assemblies demanding long service life and consistent performance.

ND047AR0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
ND047 Bearing series and size designation (4.75" bore)
A Angular Contact design with a 30° contact angle
R0 Standard radial internal clearance

Key Feature: The Endura-kote Plated construction provides superior surface hardness and corrosion resistance, extending bearing life in demanding environments.

ND047AR0 Bearing Structural Features & Performance Benefits

  • High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides high rigidity and is specifically engineered to support substantial combined radial and axial loads. It offers a high axial static load rating of 4720 lbf.
  • Precision Performance: Manufactured to ABEC-1 tolerance standards with a controlled radial internal clearance, ensuring smooth, quiet operation and precise rotational accuracy.
  • Durability & Corrosion Resistance: The chromium plating on all bearing components significantly improves resistance to wear and corrosion, making it suitable for a wide temperature range from -30°C to 110°C.
  • Optimized Component Materials: The combination of chrome steel rings, chrome steel balls, and a brass cage ensures high strength, durability, and stable operation at moderate speeds.

ND047AR0 Bearing Typical Application Areas

The ND047AR0 is designed for use in a variety of industrial and precision applications, including:

  • Aerospace Actuation Systems
  • Precision Machine Tool Components
  • Medical and Laboratory Equipment
  • Robotic Arms and Joints
  • High-Performance Gearboxes

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