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Constant Section (CS) Bearings NC120AR0

Constant Section (CS) Bearings NC120AR0

The NC120AR0 is a constant section bearing with a 12″ bore and 12.75″ outer diameter, featuring a slim 0.375″ width. Made from chrome steel with brass cage, it’s designed for angular contact loads and offers smooth operation.

This bearing handles dynamic radial loads up to 2147 lbf and static thrust loads of 5570 lbf, suitable for moderate-speed applications. Its 30° contact angle provides stability under combined loads.

The open design and chromium plating (Endura-kote) resist corrosion, while ABEC-1 tolerance ensures reliable performance. Interchangeable with KAYDON models, it’s a practical replacement option.

Ideal for robotics or precision machinery where space is limited. Works in temperatures from -30°C to 110°C and complies with RoHS standards. Weighs 1.23 lbs for easy handling.

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Product Parameters

  • Part Number NC120AR0
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 12"
  • Bore Dia Tolerance -0.0014"– 0"
  • Outer Dia 12.75"
  • Outer Dia Tolerance -0.0014"– 0"
  • Width 0.375"
  • Width Tolerance +.000 –.005"
  • Thin Section Bearings Type Endura-kote Plated Bearings
  • Series NC 3/8" x 3/8"
  • Tolerance Class ABEC-1
  • Radial Clearance 0.0000 – 0.0005"
  • Contact Angle 30°
  • External Diameter On Inner Ring 12.277"
  • Internal Diameter On Outer Ring (Small Side Face) 12.473"
  • Internal Diameter On Outer Ring (Large Side Face) 12.540"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 2147 lbf
  • Static Radial Load 7290 lbf
  • Static Thrust Load 5570 lbf
  • Static Moment 21040 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 3729 lbf
  • Surface Chromium Plating
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 1.23 lbs
  • price（$） 318.41
Constant Section (CS) Bearings NC120AR0 dimension drawing
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Features

How Does NC120AR0 Bearing Handle Angular Contact Loads?

NC120AR0 Bearing features a 30° contact angle, optimised for angular contact loads with smooth operation.
Its chrome steel rings and balls provide strong resistance to both radial and thrust loads.

The brass cage ensures proper ball alignment, reducing friction and wear during operation.
With a static radial load capacity of 7290 lbf, it delivers reliable performance in various applications.

NC120AR0 Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its Endura-kote plating enhances durability, making it suitable for demanding environments.

Application

Industrial Uses of NC120AR0 Bearing
NC120AR0 Bearing is commonly used in industrial machinery, especially where space constraints require thin-section bearings, such as robotic arms and packaging equipment. Its open design and chromium plating make it resistant to corrosion in harsh environments.

In automotive applications, NC120AR0 Bearing supports steering systems and suspension components, thanks to its angular contact design. The brass cage ensures smooth operation even under varying loads and speeds.

For medical imaging devices, NC120AR0 Bearing’s precise tolerances and chrome steel construction provide reliable performance. Its lightweight design is ideal for equipment where minimal weight is crucial.

Where Is NC120AR0 Bearing Used?
NC120AR0 Bearing finds its place in automation systems, particularly in conveyor belts and rotary tables. The ABEC-1 tolerance class ensures consistent performance in repetitive motion tasks.

Designed for Versatility: NC120AR0 Bearing
NC120AR0 Bearing is a great fit for aerospace applications, where its thin profile and high load capacity are essential. The 30° contact angle helps manage both radial and thrust loads effectively.

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