JB025XP0
5/16" Constant Section Bearings
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Part No.
Part No.
JB025XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Sealed
Construction
Single Row
Weight
0.19 lbs
Tolerance class
ABEC-1
Seal type
Sealed
For load direction
Four Point Contact
Main Dimensions
Bore diameter
2.5"
Bore diameter tolerance
-0.0006"– 0"
Outside diameter
3.125"
Outside diameter tolerance
-0.0005"– 0"
Width
0.3125"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
2.699"
Outer Ring Dimensions
Outer ring small-side face inner diameter
2.925"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
848 lbf
Radial static load rating
1140 lbf
Axial dynamic load rating
1290 lbf
Axial static load rating
2840 lbf
Dynamic load moment
895 lbf
Static load moment
1600 lbf
Rated load moment
895 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:
$ 56.4
/ each
In Stock
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JB025XP0 Bearing Product Overview & Core Advantages
The JB025XP0 is a high-performance Four Point Contact Ball Bearing from the Reali-Slim Sealed Bearings series, designed for applications demanding compact cross-sections and high load capacity. This single row, sealed bearing is engineered to simultaneously handle significant combined loads, including radial, axial, and moment loads, within a minimal space envelope. Its ABEC-1 precision and pre-lubricated, sealed construction ensure reliable operation in high-rigidity and precision positioning systems, making it an ideal solution for space-constrained, high-performance machinery.
JB025XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| JB025 | Bearing series and nominal bore size (2.5 inches). |
| XP | Indicates the bearing is part of the "Reali-Slim" thin section bearings family with an "X" cross-section. |
| 0 | Sealed construction on both sides for contaminant exclusion. |
JB025XP0 Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The optimized raceway geometry allows a single row bearingcombined radial and axial loads, as well as moment loads (rated at 895 ft-lbf dynamic), simplifying assembly and reducing the need for complex multi-bearing arrangements.
- High Load Capacity & Rigidity: Manufactured from Chrome Steel for both rings and balls, this bearing offers high dynamic and static load ratings (848 lbf radial dynamic, 1290 lbf axial dynamic), ensuring stability and long service life under demanding conditions.
- Space-Saving & Lightweight: As a thin section bearing with a width of only 0.3125", it provides a high load capacity within a minimal cross-section, contributing to lighter and more compact machine designs. The total weight is just 0.19 lbs.
- Sealed & Pre-Lubricated for Maintenance-Free Operation: The integral seals protect against contaminants and retain lubrication, enabling reliable performance and reducing maintenance requirements over the bearing's operational life.
- Precision Performance: Built to ABEC-1 tolerance class with a controlled radial internal clearance, it ensures smooth, precise rotation essential for accurate positioning applications.
JB025XP0 Bearing Typical Application Areas
- Robotics: Ideal for robotic joints, actuators, and manipulators requiring high moment load capacity and compact design.
- Aerospace & Defense: Used in gimbals, control mechanisms, and satellite positioning systems.
- Medical Equipment: Suitable for precision stages in MRI machines, CT scanners, and surgical robots.
- Semiconductor Manufacturing: Applied in wafer handling robots and precision positioning tables.
- Industrial Automation: Perfect for rotary tables, indexing heads, and other precision motion control systems.
