KD050AR0
1/2" Constant Section Bearings
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Part No.
Part No.
KD050AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
0.98 lbs
Tolerance class
ABEC-1
ISO radial rating
4004 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
5"
Bore diameter tolerance
-0.0010" – 0"
Outside diameter
6"
Outside diameter tolerance
-0.0008" – 0"
Width
0.5"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
5.37"
Outer Ring Dimensions
Outer ring large-side face inner diameter
5.74"
Outer ring small-side face inner diameter
5.63"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
2040 lbf
Radial static load rating
4340 lbf
Axial static load rating
4870 lbf
Static load moment
12540 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:
$ 135.34
/ each
In Stock
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KD050AR0 Bearing Product Overview & Core Advantages
The KD050AR0 is a high-precision thin section angular contact ball bearing designed for applications demanding exceptional rigidity and accurate rotational performance within a compact envelope. Engineered with a 30° contact angle, this single-row bearing is optimized to support combined loads, handling significant radial and axial loads simultaneously. Its inch-series dimensions (5" bore, 6" O.D., 0.5" width) and ABEC-1 precision make it an ideal component for high-reliability systems where space and weight are critical constraints. The bearing comes pre-lubricated for immediate operation.
KD050AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KD | Manufacturer's series prefix for thin-section bearings. |
| 050 | Indicates the nominal bore diameter in inches (5 inches). |
| A | Signifies the 30° contact angle, optimized for combined load capacity. |
| R | Denotes Reali-Slim open bearing construction. |
| 0 | Specifies the open (non-shielded/non-sealed) design, allowing for custom lubrication schemes. |
KD050AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row design with a 30° contact angle and robust chrome steel construction provides high rigidity, enabling the bearing to handle substantial combined loads (Radial Dynamic: 2040 lbf, Axial Static: 4870 lbf).
- Precision Performance: Manufactured to ABEC-1 tolerance class with a controlled radial internal clearance (0.0000 – 0.0005"), ensuring smooth, precise, and low-vibration operation.
- Optimized Cage Design: The brass cage ensures stable ball guidance, contributing to reliable performance at moderate to high speeds.
- Space-Saving & Lightweight: As part of the Reali-Slim series, it offers a large bore relative to its cross-section, saving critical space and weight (0.98 lbs) in compact machinery.
KD050AR0 Bearing Typical Application Areas
This bearing is ideally suited for:
- Robotics (Robotic arms and joints)
- Aerospace & Defense Systems (Gimbals, radar platforms, control surfaces)
- Medical Equipment (CT scanners, surgical robots)
- Semiconductor Manufacturing Equipment (Wafer handling robots, precision stages)
- Industrial Automation (Rotary tables, indexing heads)
