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Constant Section (CS) Bearings NB070AR0

Constant Section (CS) Bearings NB070AR0

The NB070AR0 is a constant section bearing with a 7-inch bore and 7.625-inch outer diameter, featuring a slim 0.3125-inch width. Made from chrome steel with a brass cage, it’s designed for angular contact loads and offers smooth operation.

This bearing handles dynamic radial loads up to 1184 lbf and static thrust loads up to 2980 lbf, making it suitable for moderate stress applications. Its 30° contact angle ensures stable performance under combined loads.

The open design allows for easy lubrication, while the chromium plating enhances durability. It operates in temperatures from -30°C to 110°C, ideal for various industrial environments.

Interchangeable with KAYDON bearings, it’s a practical choice for replacements. Perfect for machinery requiring thin-section bearings with reliable angular contact performance. Weighing just 0.5 lbs, it’s lightweight yet sturdy.

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Product Parameters

  • Part Number NB070AR0
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 7"
  • Bore Dia Tolerance -0.0010"– 0"
  • Outer Dia 7.625"
  • Outer Dia Tolerance -0.0012"– 0"
  • Width 0.3125"
  • Width Tolerance +.000 –.005"
  • Thin Section Bearings Type Endura-kote Plated Bearings
  • Series NB 5/16" x 5/16"
  • Tolerance Class ABEC-1
  • Radial Clearance 0.0000 – 0.0005"
  • Contact Angle 30°
  • External Diameter On Inner Ring 7.231"
  • Internal Diameter On Outer Ring (Small Side Face) 7.393"
  • Internal Diameter On Outer Ring (Large Side Face) 7.456"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 1184 lbf
  • Static Radial Load 3450 lbf
  • Static Thrust Load 2980 lbf
  • Static Moment 9960 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 2347 lbf
  • Surface Chromium Plating
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 0.5 lbs
  • price（$） 238.73
Constant Section (CS) Bearings NB070AR0 dimension drawing
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Features

How Does NB070AR0 Bearing Handle Angular Contact Loads?

NB070AR0 Bearing features a 30° contact angle, optimised for angular contact applications.
Its chrome steel construction ensures strength and durability under dynamic radial loads up to 1184 lbf.

The brass cage maintains ball alignment, reducing friction and wear during operation.
With a temperature range of -30°C to 110°C, it performs reliably in various environments.

NB070AR0 Bearing’s ABEC-1 tolerance class offers consistent precision for smooth performance.
Its Endura-kote plating enhances corrosion resistance, extending service life.

Application

Industrial Uses of NB070AR0 Bearing
NB070AR0 Bearing is commonly used in industrial machinery where space constraints are a concern, thanks to its thin-section design. Its angular contact feature makes it suitable for applications requiring precise rotational control, such as robotic arms.

In automation systems, NB070AR0 Bearing provides reliable performance in equipment like 3D printers and CNC machines. The chromium plating enhances durability, ensuring long service life even in demanding conditions.

For aerospace applications, NB070AR0 Bearing’s ABEC-1 tolerance ensures smooth operation in navigation systems and control mechanisms. The brass cage adds stability, making it a dependable choice for high-precision environments.

Where Is NB070AR0 Bearing Used?
You’ll often find NB070AR0 Bearing in medical imaging devices where its thin profile and high precision are essential. The chrome steel construction ensures consistent performance in critical healthcare equipment.

In consumer electronics, NB070AR0 Bearing supports components like high-end turntables and optical drives. Its lightweight design and smooth operation make it ideal for devices requiring quiet and efficient performance.

Built for Heavy-Duty Use: NB070AR0 Bearing
NB070AR0 Bearing excels in heavy machinery, such as conveyor systems, where its dynamic radial load capacity handles continuous operation. The open seal design allows for easy maintenance in dusty environments.

Automotive vs Aerospace: Applications of NB070AR0 Bearing
In automotive systems, NB070AR0 Bearing is used in steering mechanisms due to its angular contact capabilities. For aerospace, it’s favoured in flight control systems where precision and reliability are non-negotiable.

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