KG055XP0
1" Constant Section Bearings
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Part No.
Part No.
KG055XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
4.7 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
5.5"
Bore diameter tolerance
-0.0010"– 0"
Outside diameter
7.5"
Outside diameter tolerance
-0.0010"– 0"
Width
1"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
6.242"
Outer Ring Dimensions
Outer ring small-side face inner diameter
6.758"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
8979 lbf
Radial static load rating
10400 lbf
Axial dynamic load rating
13180 lbf
Axial static load rating
25990 lbf
Dynamic load moment
21896 lbf
Static load moment
33790 lbf
Rated load moment
21 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:
$ 174.71
/ each
In Stock
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KG055XP0 Bearing Product Overview & Core Advantages
The KG055XP0 is a high-performance Four Point Contact Ball Bearing from the Reali-Slim Open Bearings series, designed with an ultra-thin cross-section for space-constrained applications. This inch series bearing excels at simultaneously handling significant combined loads, including radial, axial, and moment loads, due to its specialized raceway geometry. Its open design, single-row construction, and ABEC-1 precision make it an ideal solution for high-rigidity, compact systems requiring reliable performance under complex loading conditions.
KG055XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG055 | Base model identifier for the Reali-Slim series with specific cross-section and bore size. |
| X | Denotes Four Point Contact design, enabling the bearing to support combined radial, axial, and moment loads. |
| P | Indicates ABEC-1 Precision tolerance class for consistent, reliable operation. |
| 0 | Specifies the Radial Internal Clearance group (C0). |
KG055XP0 Bearing Structural Features & Performance Benefits
- Four Point Contact & High Load Capacity: The unique raceway design allows a single bearing to support substantial combined loads, with high dynamic and static ratings for radial (8979 lbf / 10400 lbf), axial (13180 lbf / 25990 lbf), and moment loads (21896 lbf / 33790 lbf). This eliminates the need for complex multi-bearing arrangements.
- Thin-Section & Space Optimization: With a consistent 1" cross-section across large bore sizes (5.5"), this bearing provides maximum stiffness and load capacity within a minimal envelope, ideal for lightweight robotic and aerospace structures.
- Precision & High Rigidity: Manufactured to ABEC-1 tolerances with tight bore and OD dimensional control, it ensures smooth, precise rotation and minimal runout, contributing to system accuracy.
- Robust Material Construction: The use of Chrome Steel for rings and balls, combined with a Brass cage, provides excellent durability, wear resistance, and stable operation across a wide temperature range (-30°C to 110°C).
KG055XP0 Bearing Typical Application Areas
This bearing is engineered for applications demanding high performance in compact spaces and under complex loading:
- Robotics: Rotary joints, robot arms, and precision actuators.
- Aerospace & Defense: Radar platforms, gimbal systems, and flight control mechanisms.
- Machine Tool: Rotary tables, indexing heads, and CNC positioning systems.
- Medical Equipment: CT scanners, MRI machines, and surgical robot joints.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
