JB030XP6K

5/16" Constant Section Bearings

JB030XP6K 5/16" Constant Section Bearings
JB030XP6K 5/16" Constant Section Bearings

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Part No.
Part No. JB030XP6K

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Sealed
Construction Single Row
Weight 0.22 lbs
Tolerance class ABEC 7F
Seal type Sealed
For load direction Four Point Contact

Main Dimensions

Bore diameter 3"
Bore diameter tolerance -0.0006"– 0"
Outside diameter 3.625"
Outside diameter tolerance -0.0006"– 0"
Width 0.3125"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 3.199"

Outer Ring Dimensions

Outer ring small-side face inner diameter 3.425"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 933 lbf
Radial static load rating 1340 lbf
Axial dynamic load rating 1440 lbf
Axial static load rating 3350 lbf
Dynamic load moment 1159 lbf
Static load moment 2220 lbf
Rated load moment 1159 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: $ 72.21 / each
In Stock

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JB030XP6K Bearing Product Overview & Core Advantages

The JB030XP6K is a high-precision Four Point Contact Ball Bearing from the Reali-Slim Sealed Bearings series, designed for applications demanding compact cross-sections and high load capacity. This thin section bearing features a sealed, single row construction manufactured to ABEC 7F precision tolerances. Its defining characteristic is its ability to support significant combined loads, including radial, axial, and moment loads simultaneously, making it an ideal solution for space-constrained, high-performance machinery requiring exceptional rigidity and accuracy.

JB030XP6K Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
JB030 Base model designation for the Reali-Slim series bearing.
XP Indicates a Four Point Contact design, enabling support for combined radial, axial, and moment loads.
6K Specifies the bearing is Sealed and pre-lubricated for protection against contamination and long service life.

JB030XP6K Bearing Structural Features & Performance Benefits

  • Four Point Contact & High Load Capacity: The unique raceway design allows the bearing to carry substantial combined loads from all directions. With a high Dynamic Load Moment rating of 1159 ft-lbf and significant Axial Static Load capacity of 3350 lbf, it provides robust performance in demanding applications.
  • Precision & Rigidity: Manufactured to ABEC 7F tolerance class with a tight Radial Internal Clearance (0.0000 – 0.0005"), this bearing ensures smooth, precise operation and contributes to high system stiffness.
  • Sealed & Lubricated for Life: The integrated seals protect the bearing from contaminants, while the factory-applied lubrication ensures consistent performance across a wide Temperature Range of -30°C to 110°C, offering a maintenance-free solution.
  • Compact & Lightweight Design: With a slim cross-section (Width: 0.3125") and low weight (0.22 lbs), it is engineered for applications where space and weight savings are critical without compromising on bearing performance.

JB030XP6K Bearing Typical Application Areas

This bearing is ideally suited for:
  • Robotics: Rotary joints and actuators requiring high moment load capacity and compact size.
  • Aerospace & Defense: Gimbals, control mechanisms, and radar systems.
  • Machine Tool: Rotary tables, indexing heads, and other precision rotary axes.
  • Medical Equipment: CT scanners and advanced imaging devices.
  • Semiconductor Manufacturing: Wafer handling robots and precision stages.
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