KD0550AR0
1/2" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KD0550AR0 Bearing Product Overview & Core Advantages
The KD0550AR0 is a high-performance thin section angular contact ball bearing designed for applications demanding 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 angular contact loads, due to its 30° contact angle. Its compact cross-section, with a width of only 0.5", makes it ideal for high-rigidity support in weight-sensitive and compact designs, offering a superior static load moment capacity of 13,680 lbf for enhanced stability.
KD0550AR0 Bearing Model Code Explained, Specifications & Naming Convention
| KD | Series prefix for Reali-Slim thin section bearings. |
| 0550 | Specifies the nominal bore diameter (5.5") and outside diameter (6.5"). |
| A | Indicates the 30° contact angle, optimized for handling significant axial loads in one direction combined with radial loads. |
| R | Denotes a Brass cage (retainer), which provides high strength and excellent performance at moderate speeds. |
| 0 | Specifies an Open (unsealed) design, allowing for custom lubrication schemes and maximum speed potential. |
KD0550AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: The single row construction with a minimal cross-section (0.5" width) provides significant space and weight savings without compromising load capacity, making it perfect for compact machinery.
High Load Capacity and Rigidity: The 30° contact angle and robust Chrome Steel construction enable the bearing to support high combined radial and axial static loads (4,740 lbf radial, 5,160 lbf axial). The brass cage ensures stability and reliable operation under load.
Precision Performance: Manufactured to ABEC-1 tolerance class with tight bore and outside diameter tolerances, this bearing guarantees running accuracy and consistent performance in precision applications.
Versatile Lubrication & Operation: The open design allows for the use of various lubricants to suit specific operational needs, supporting a wide temperature range from -30°C to 110°C.
KD0550AR0 Bearing Typical Application Areas
The KD0550AR0 is ideally suited for a range of demanding sectors, including:
- Robotics and Automation: Gantry systems, rotary joints, and robotic arms where high rigidity and compact design are critical.
- Aerospace and Defense: Radar platforms, guidance systems, and actuation mechanisms requiring lightweight and precision components.
- Medical Equipment: MRI and CT scanner gantries, surgical robots, and other devices where thin section bearings enable sleek, high-performance designs.
- Semiconductor Manufacturing: Wafer handling robots and precision stages that demand exceptional accuracy and load moment capacity.
