KG180UH4
1" Constant Section Bearings
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Part No.
Part No.
KG180UH4
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
13.8 lbs
Tolerance class
ABEC 5F
ISO radial rating
17101 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
18"
Bore diameter tolerance
-0.0016"– 0"
Outside diameter
20"
Outside diameter tolerance
-0.0016"– 0"
Width
1"
Width tolerance
+.000 –.010"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
18.742"
Outer Ring Dimensions
Outer ring large-side face inner diameter
19.472"
Outer ring small-side face inner diameter
19.258"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
12898 lbf
Radial static load rating
36020 lbf
Axial static load rating
33200 lbf
Static load moment
104000 lbf
Lubrication
Lubricated
Radial internal clearance
0.0000 – 0.0005"
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1190.24
/ each
In Stock
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KG180UH4 Bearing Product Overview & Core Advantages
The KG180UH4 is a high-precision **thin section angular contact ball bearing** engineered for applications demanding exceptional rigidity and accuracy within compact design constraints. This **single row bearing** features a 30° **contact angle**, optimized to handle significant **combined loads**—simultaneously supporting substantial radial and axial forces. Manufactured to **ABEC 5F** precision standards, it delivers superior running accuracy and high-speed capability. Its **Reali-Slim** open construction and generous **static load moment** rating of 104,000 lbf make it an ideal solution for high-performance, space-sensitive machinery requiring long-term reliability.
KG180UH4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG180UH4 | Specific manufacturer model designation for this thin-section angular contact bearing series. |
| Open (Seal Type) | No integral seals or shields, allowing for custom lubrication schemes and minimal friction for high-speed operation. |
| ABEC 5F | Defines the **precision class** for both inner and outer rings, ensuring tight dimensional and running accuracy. |
KG180UH4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The **single row angular contact** design with a 30° contact angle provides excellent resistance to **combined radial and axial loads**, supported by high **static load ratings** (Radial: 36,020 lbf, Axial: 33,200 lbf).
- Precision & High-Speed Performance: The **ABEC 5F** tolerance class and **phenolic cage** contribute to smooth operation, reduced vibration, and enhanced suitability for **high-speed applications**.
- Space-Saving Design: As a **Reali-Slim** bearing, it offers a large bore diameter (18") relative to its cross-section (1" width), maximizing design flexibility in compact assemblies.
- Durable Construction: Components made from **chrome steel** provide high hardness, wear resistance, and extended service life under demanding conditions.
- Optimized Internal Clearance: The specified **radial internal clearance** (0.0000 – 0.0005") ensures optimal preload and performance in precision setups.
KG180UH4 Bearing Typical Application Areas
This bearing is ideally suited for high-performance equipment where precision, speed, and a compact footprint are critical. Key sectors include:
- Robotics: Robot arm joints and precision actuators.
- Aerospace & Defense: Gyroscopes, radar platforms, and flight control mechanisms.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Medical Equipment: CT scanner gantries and surgical robot arms.
- High-End Industrial Automation: Rotary tables and direct-drive motor systems.
