KD075AR0
1/2" Constant Section Bearings
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Part No.
Part No.
KD075AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
1.42 lbs
Tolerance class
ABEC-1
ISO radial rating
4608 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7.5"
Bore diameter tolerance
-0.0012"– 0"
Outside diameter
8.5"
Outside diameter tolerance
-0.0012"– 0"
Width
0.5"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
7.87"
Outer Ring Dimensions
Outer ring large-side face inner diameter
8.236"
Outer ring small-side face inner diameter
8.13"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
2536 lbf
Radial static load rating
6320 lbf
Axial static load rating
6250 lbf
Static load moment
18240 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:
$ 171.62
/ each
In Stock
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KD075AR0 Bearing Product Overview & Core Advantages
The KD075AR0 is a high-precision thin section angular contact ball bearing designed for applications demanding exceptional rigidity and precise motion control. This single row bearing excels at handling combined loads, supporting significant radial and axial forces simultaneously due to its specific 30° contact angle. Manufactured to ABEC-1 precision standards, it offers reliable performance in compact spaces with its slim 0.5" cross-section, making it ideal for high-accuracy rotary systems where space and weight (1.42 lbs) are critical constraints.
KD075AR0 Bearing Model Code Explained, Specifications & Naming Convention
The KD075AR0 model number provides key technical specifications:
- KD075: Indicates a "Reali-Slim" series thin-section bearing with a 7.5" bore diameter.
- A: Denotes an Angular Contact design, optimized for combined loads.
- R0: Specifies a standard radial internal clearance of C0 group (0.0000 – 0.0005").
- Open (implied): The bearing features no seals or shields, allowing for custom lubrication schemes and maximum speed capability.
KD075AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides high resistance to combined loads, evidenced by its substantial radial dynamic load rating of 2536 lbf and axial static load rating of 6250 lbf.
- Precision Engineering: Built to ABEC-1 tolerance classes with tight dimensional tolerances on bore, outside diameter, and width, ensuring consistent performance and easy integration into precision assemblies.
- Optimized Material Selection: The combination of Chrome Steel rings and balls with a Brass cage ensures durability, smooth operation, and suitability for a wide temperature range (-30°C to 110°C).
- Thin-Section Design: The compact 0.5" width and large 7.5" bore minimize system weight and space requirements without sacrificing performance, a hallmark of the Reali-Slim Open Bearings series.
KD075AR0 Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications requiring compact, lightweight, and precise rotary solutions, including:
- Robotics: Rotary joints and actuator arms.
- Aerospace & Defense: Gimbals, radar platforms, and guidance systems.
- Semiconductor Manufacturing: Precision stages and wafer handling equipment.
- Medical Equipment: CT scanners and surgical robot joints.
- Industrial Automation: High-speed indexing tables and precision spindles.
