K09020AR0
20mm Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
K09020AR0
Basic Information
Bearing type
Ball
System of measurement
Metric
Thin section bearings type
Reali-Slim mm Metric
Construction
Single Row
Weight
0.77 kg
Tolerance class
ABEC-1
ISO radial rating
6608 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.015mm to 0
Width
20 mm
Width tolerance
+.000 –.127mm
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
105 mm
Outer Ring Dimensions
Outer ring large-side face inner diameter
120 mm
Outer ring small-side face inner diameter
115 mm
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
4081 lbf
Radial static load rating
6664 lbf
Axial static load rating
8966 lbf
Static load moment
19237 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:
$ 90.73
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
K09020AR0 Bearing Product Overview & Core Advantages
The K09020AR0 is a single row angular contact ball bearing from the Reali-Slim mm Metric series, engineered for applications requiring high precision and space optimization. This thin section bearing features a 90 mm bore and is designed to accommodate combined loads, particularly excelling under high axial static loads (8966 lbf). Its 30° contact angle provides superior axial load capacity and rigidity, making it ideal for compact, high-performance assemblies where precise motion control is critical. The bearing is pre-lubricated and operates effectively within a temperature range of -30°C to 110 °C.
K09020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K09020 | Indicates the specific bearing size and series: 90mm bore, 130mm OD, 20mm width from the Reali-Slim metric series. |
| A | Denotes 30° contact angle, optimized for high axial load capacity. |
| R0 | Specifies the radial internal clearance group (0.0000 – 0.0005") for precision applications. |
K09020AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row design with a 30° contact angle provides excellent rigidity and is specifically engineered to handle significant combined radial and axial loads, with a notably high axial static load rating of 8966 lbf.
- Precision Engineering: Manufactured to ABEC-1 tolerance class with a very tight radial internal clearance, ensuring smooth, precise operation and minimal runout for accurate positioning.
- Durable Construction: Components made from chrome steel (rings and balls) and a brass cage offer high strength, wear resistance, and reliable performance under demanding conditions.
- Space-Saving Design: As part of the Reali-Slim thin section series, it provides a large bore relative to its cross-section, enabling compact and lightweight machinery designs.
K09020AR0 Bearing Typical Application Areas
This bearing is suited for a variety of precision applications including:
- Robotics and automation arms (for joint and pivot points)
- Medical equipment such as MRI scanners and surgical robots
- Aerospace control mechanisms and instrumentation
- Semiconductor manufacturing equipment
- Precision rotary tables and indexing heads
