K05020AR0
20mm Constant Section Bearings
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Part No.
Part No.
K05020AR0
Basic Information
Bearing type
Ball
System of measurement
Metric
Thin section bearings type
Reali-Slim mm Metric
Construction
Single Row
Weight
0.49 kg
Tolerance class
ABEC-1
ISO radial rating
5325 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.013mm to 0
Width
20 mm
Width tolerance
+.000 –.127mm
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
65 mm
Outer Ring Dimensions
Outer ring large-side face inner diameter
80 mm
Outer ring small-side face inner diameter
75 mm
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
3219 lbf
Radial static load rating
4164 lbf
Axial static load rating
6554 lbf
Static load moment
12023 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:
$ 71.39
/ each
In Stock
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K05020AR0 Bearing Product Overview & Core Advantages
The K05020AR0 is a metric thin-section angular contact ball bearing from the Reali-Slim mm Metric Bearings series. Engineered with a single row design and a 30° contact angle, it is specifically optimized to handle combined radial and axial loads simultaneously. Its compact cross-section and ABEC-1 precision make it an ideal solution for applications demanding high accuracy, space savings, and reliable performance in high-rigidity systems.
K05020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K | Metric Series Identifier |
| 05020 | Bore Diameter: 50 mm, Outside Diameter: 90 mm, Width: 20 mm |
| A | 30° Contact Angle |
| R0 | Standard Radial Internal Clearance (0.0000 – 0.0005") |
K05020AR0 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 loads, supporting a radial dynamic load rating of 3219 lbf and a significant axial static load rating of 6554 lbf.
- Precision Performance: Manufactured to ABEC-1 tolerance class, this bearing ensures consistent running accuracy and low noise operation, which is critical for precision applications.
- Durable Construction: Components made from Chrome Steel (rings and balls) and a Brass cage offer high strength, wear resistance, and stable operation at temperatures from -30°C to 110°C.
- Optimized for Compact Designs: As a thin-section bearing, it provides a large bore relative to its cross-section, enabling significant space and weight savings (weight: 0.49 kg) without compromising performance.
K05020AR0 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring a compact, high-precision solution that can handle combined loads. Typical uses include:
- Robotics (joint and arm assemblies)
- Aerospace (control mechanisms, actuation systems)
- Medical Equipment (scanners, precision instruments)
- Semiconductor Manufacturing Equipment
- Optical Positioning Systems
