KF050XP3

3/4" Constant Section Bearings

KF050XP3 3/4" Constant Section Bearings
KF050XP3 3/4" Constant Section Bearings

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Part No.
Part No. KF050XP3

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 2.3 lbs
Tolerance class ABEC 3F
Seal type Open
For load direction Four Point Contact

Main Dimensions

Bore diameter 5"
Bore diameter tolerance -0.0010"– 0"
Outside diameter 6.5"
Outside diameter tolerance -0.0008"– 0"
Width 0.75"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 5.555"

Outer Ring Dimensions

Outer ring small-side face inner diameter 5.945"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 5172 lbf
Radial static load rating 6490 lbf
Axial dynamic load rating 7760 lbf
Axial static load rating 16220 lbf
Dynamic load moment 11157 lbf
Static load moment 18660 lbf
Rated load moment 11 ft-lbf
Lubrication Lubricated
Radial internal clearance 0.0000 – 0.0005"

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Brass

Environment & Compliance

ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
Price: $ 128.82 / each
In Stock

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KF050XP3 Bearing Product Overview & Core Advantages

The KF050XP3 is a high-performance Four Point Contact Ball Bearing designed for applications requiring exceptional load capacity in a compact thin-section bearing design. Engineered with inch system measurements, this single row bearing delivers outstanding performance by simultaneously handling combined radial and axial loads from any direction. Its precision ABEC 3F tolerance class and optimized internal geometry ensure reliable operation in high-accuracy applications where space constraints and load demands are critical factors.

KF050XP3 Bearing Model Code Explained, Specifications & Naming Convention

Code Element Technical Meaning Performance Benefit
KF Reali-Slim® Series Identifier Indicates thin-section bearing design
050 Bore Diameter: 5 inches Standard inch sizing for compatibility
XP Extra Precision Grade Superior running accuracy and smooth operation
3 Cross Section: 3/4" (0.75") Optimized width for space-constrained applications

Structural Features & Performance Advantages

Four Point Contact Design: The unique raceway geometry enables the bearing to support combined radial and axial loads in any direction, making it ideal for complex loading conditions. This design provides exceptional moment load capacity with rated load moment of 11 ft-lbf.

Thin-Section Construction: With a compact cross-section of 0.75" width and optimized bearing dimensions (5" bore × 6.5" OD), this bearing maximizes load capacity while minimizing space requirements, perfect for robotic and automation applications.

Premium Material Selection: Constructed from chrome steel rings and balls with brass cage for superior strength, durability, and smooth operation under demanding conditions.

Precision Engineering: Manufactured to ABEC 3F tolerance class with tight radial internal clearance (0.0000 – 0.0005") ensuring consistent performance and extended service life in precision applications.

KF050XP3 Bearing Typical Application Areas

  • Robotics and Automation: Robot arms, rotary joints, and precision positioning systems
  • Aerospace and Defense: Radar systems, gimbal mechanisms, and satellite components
  • Medical Equipment: CT scanners, surgical robots, and diagnostic imaging systems
  • Industrial Machinery: Rotary tables, indexing devices, and precision turntables
  • Semiconductor Manufacturing: Wafer handling equipment and precision positioning stages
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