JU040XP0K
3/8" Constant Section Bearings
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Part No.
Part No.
JU040XP0K
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Sealed
Construction
Single Row
Weight
0.55 lbs
Tolerance class
ABEC-1
Seal type
Sealed
For load direction
Four Point Contact
Main Dimensions
Bore diameter
4"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
4.75"
Outside diameter tolerance
-0.0006"– 0"
Width
0.5"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
4.15"
Outer Ring Dimensions
Outer ring small-side face inner diameter
4.547"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
1417 lbf
Radial static load rating
2100 lbf
Axial dynamic load rating
2210 lbf
Axial static load rating
5260 lbf
Dynamic load moment
2326 lbf
Static load moment
4600 lbf
Rated load moment
2 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:
$ 106.26
/ each
In Stock
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JU040XP0K Bearing Product Overview & Core Advantages
The JU040XP0K is a high-performance thin section sealed bearing designed for applications demanding precision and space optimization. As a Four Point Contact ball bearing, it excels at simultaneously handling combined radial and axial loads from any direction, making it an ideal solution for compact, high-rigidity assemblies. Its sealed construction and pre-lubrication ensure long-term reliability and maintenance-free operation in demanding environments, while its inch dimensions cater to specialized machinery requirements.
JU040XP0K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| JU040 | Indicates the specific bearing series and size designation (4" bore, 4.75" OD, 0.5" width). |
| XP | Signifies the Four Point Contact ball bearing design, enabling high moment load capacity. |
| 0K | Denotes a sealed bearing configuration, providing protection against contaminants. |
JU040XP0K Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The single-row bearing geometry allows each ball to make contact at four points with the raceways. This unique structure provides exceptional moment load capacity (Static Load Moment: 4600 lbf-in) and enables the bearing to support combined radial and axial loads efficiently in a compact cross-section.
- High Rigidity & Precision: Manufactured to ABEC-1 tolerance standards with a tight radial internal clearance (0.0000 – 0.0005"), this bearing ensures smooth, precise rotation and minimal runout, which is critical for accurate positioning systems.
- Durability & Long Service Life: The use of Chrome Steel for rings and balls, combined with a robust Brass cage, provides high strength and wear resistance. The sealed design retains lubrication and excludes debris, contributing to a long, maintenance-free operational lifespan.
- Space-Saving & Lightweight: As part of the Reali-Slim series, this bearing features a thin cross-section (0.5" width) and low weight (0.55 lbs), enabling significant weight and space savings in the overall system design.
JU040XP0K Bearing Typical Application Areas
This bearing is engineered for high-performance applications where space, weight, and precision are paramount. Key industries and equipment include:
- Robotics: Robotic arms, joints, and rotary actuators.
- Aerospace & Defense: Gimbals, radar platforms, and control surface mechanisms.
- Medical Equipment: CT scanners, surgical robots, and precision imaging devices.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Industrial Automation: Rotary tables, indexing heads, and CNC rotary axes.
