KD070AR0
1/2" Constant Section Bearings
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Part No.
Part No.
KD070AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
1.33 lbs
Tolerance class
ABEC-1
ISO radial rating
4499 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7"
Bore diameter tolerance
-0.0010" – 0"
Outside diameter
8"
Outside diameter tolerance
-0.0012" – 0"
Width
0.5"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
7.37"
Outer Ring Dimensions
Outer ring large-side face inner diameter
7.736"
Outer ring small-side face inner diameter
7.63"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
2442 lbf
Radial static load rating
5920 lbf
Axial static load rating
5990 lbf
Static load moment
17100 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:
$ 173.92
/ each
In Stock
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KD070AR0 Bearing Product Overview & Core Advantages
The KD070AR0 is a high-performance thin section angular contact ball bearing designed for applications requiring exceptional precision and space optimization. As part of the Reali-Slim Open Bearings series with an inch system of measurement, it excels in handling combined loads, specifically managing significant axial loads in one direction alongside radial loads due to its 30° contact angle. Its single-row, open construction facilitates precise preloading and is ideal for high-rigidity, compact assemblies in precision machinery. Manufactured to ABEC-1 tolerance class, it delivers reliable performance where accuracy and high static load capacity are critical.
KD070AR0 Bearing Model Code Explained, Specifications & Naming Convention
The KD070AR0 model designation follows a specific coding system that reveals its technical attributes. Below is a breakdown of its key components:
- KD: Series identifier for Reali-Slim thin section bearings.
- 070
- A: Denotes the angular contact design.
- R0: Specifies the radial internal clearance group (0.0000 – 0.0005").
KD070AR0 Bearing Structural Features & Performance Benefits
The KD070AR0's design incorporates several key features that translate directly into operational advantages:
- High Rigidity & Load Capacity: The single-row angular contact design, combined with a 30° contact angle, provides high rigidity and enables the bearing to support substantial combined radial and axial static loads (Radial: 5920 lbf, Axial: 5990 lbf).
- Precision Performance: Manufactured to ABEC-1 precision tolerances, it ensures smooth, accurate rotation essential for high-precision applications.
- Optimized Cross-Section: As a thin section bearing (0.5" width), it offers significant space and weight savings (1.33 lbs) without compromising strength, enabling more compact machine designs.
- Superior Material Construction: Components made from Chrome Steel (rings and balls) and a Brass cage ensure durability, high-speed capability, and long service life.
- Controlled Internal Clearance: The specified radial internal clearance (R0) allows for precise preload setting, critical for achieving high system stiffness and accuracy.
KD070AR0 Bearing Typical Application Areas
The KD070AR0 is engineered for demanding applications across various high-tech industries, including:
- Robotics: Rotary joints and actuator arms where compact size, high rigidity, and precise motion are paramount.
- Aerospace & Defense: Gimbals, radar systems, and control surface mechanisms requiring lightweight, high-capacity bearings.
- Semiconductor Manufacturing: Precision stages and wafer handling equipment.
- Medical Equipment: Imaging scanners (CT, MRI) and surgical robot joints.
- Industrial Automation: Rotary tables, indexing heads, and high-precision spindles.
