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Constant Section (CS) Bearings KD300AR0

Constant Section (CS) Bearings KD300AR0

The KD300AR0 is a constant section bearing with a slim 0.5″ width and a large 30″ bore, designed for angular contact loads. Made from chrome steel, it handles radial loads up to 5397 lbf and static thrust loads of 15260 lbf.

Its open design and brass cage ensure smooth operation, while the 30° contact angle provides stability under moment loads. The bearing works in temperatures from -30°C to 110°C.

This model is interchangeable with KAYDON bearings, making it a practical choice for replacements. Ideal for applications requiring thin-section bearings, such as robotics or precision machinery.

Weighing 5.44 lbs, it’s lightweight for its size and compliant with RoHS standards. The ABEC-1 tolerance ensures reliable performance without unnecessary complexity.

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Product Parameters

  • Part Number KD300AR0
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 30"
  • Bore Dia Tolerance -0.0018"– 0"
  • Outer Dia 31"
  • Outer Dia Tolerance -0.0018"– 0"
  • Width 0.5"
  • Width Tolerance +.000 –.010"
  • Thin Section Bearings Type Reali-Slim Open Bearings
  • Series KD 1/2" x 1/2"
  • Tolerance Class ABEC-1
  • Radial Clearance 0.0000 – 0.0005"
  • Contact Angle 30°
  • External Diameter On Inner Ring 30.370"
  • Internal Diameter On Outer Ring (Small Side Face) 30.630"
  • Internal Diameter On Outer Ring (Large Side Face) 30.672"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 5397 lbf
  • Static Radial Load 24090 lbf
  • Static Thrust Load 15260 lbf
  • Static Moment 69540 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 7538 lbf
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 5.44 lbs
  • price（$） 4238.24
Constant Section (CS) Bearings KD300AR0 dimension drawing
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Features

How Does KD300AR0 Bearing Handle Angular Contact Loads?

KD300AR0 Bearing is designed with a 30° contact angle, optimising its performance for angular contact applications.
The chrome steel construction ensures strength and durability under dynamic radial loads up to 5397 lbf.

Its brass cage maintains ball alignment, reducing friction and extending operational life.
With a thin-section design, KD300AR0 Bearing saves space while maintaining high load capacity.

The ABEC-1 tolerance class ensures reliable precision in various industrial applications.
KD300AR0 Bearing operates smoothly within a temperature range of -30°C to 110°C.

Application

Industrial Uses of KD300AR0 Bearing
KD300AR0 Bearing is commonly used in large industrial machinery, such as rotary tables and indexing devices, where its thin section design saves space without compromising strength. The open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

Where Is KD300AR0 Bearing Used?
You’ll often find KD300AR0 Bearing in automation systems, particularly in robotic arms that require precise angular contact. Its brass cage and chrome steel construction provide a good balance of durability and smooth operation.

Built for Heavy-Duty Use: KD300AR0 Bearing
KD300AR0 Bearing handles heavy radial and thrust loads in applications like wind turbine yaw systems, where reliability is key. The ABEC-1 tolerance ensures consistent performance even under varying operational stresses.

Automotive vs Aerospace: Applications of KD300AR0 Bearing
In automotive testing rigs, KD300AR0 Bearing supports high-precision measurement equipment, while in aerospace, it’s used in satellite positioning systems. Its inch sizing makes it versatile for both industries.

Perfect Fit for Automation: KD300AR0 Bearing
KD300AR0 Bearing works well in 3D printers and CNC machines, where its slim profile and angular contact design improve accuracy. The chrome steel balls reduce friction, enhancing overall efficiency.

Q&A

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