K20008AR0
8mm Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
K20008AR0
Basic Information
Bearing type
Ball
System of measurement
Metric
Thin section bearings type
Reali-Slim mm Metric
Construction
Single Row
Weight
0.23 kg
Tolerance class
ABEC-1
ISO radial rating
2450 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
200 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
216 mm
Outside diameter tolerance
-0.03mm to 0
Width
8 mm
Width tolerance
+.000 –.254mm
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
205.9 mm
Outer Ring Dimensions
Outer ring large-side face inner diameter
212.1 mm
Outer ring small-side face inner diameter
210.1 mm
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
1744 lbf
Radial static load rating
5302 lbf
Axial static load rating
4294 lbf
Static load moment
15308 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:
$ 164.91
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
K20008AR0 Bearing Product Overview & Core Advantages
The K20008AR0 is a metric thin-section angular contact ball bearing from the Reali-Slim series, designed for applications demanding high precision and space-saving designs. As a single-row angular contact bearing, it is engineered to support significant combined loads, efficiently handling both radial and axial loads in one direction. Its compact cross-section, with a width of only 8 mm, makes it ideal for lightweight and compact machinery. Manufactured to ABEC-1 precision standards, it ensures reliable performance in high-accuracy applications. The bearing is pre-lubricated for immediate use and operates effectively within a temperature range of -30°C to 110°C.
K20008AR0 Bearing Model Code Explained, Specifications & Naming Convention
The model number K20008AR0 can be broken down to reveal its technical specifications:
- K: Indicates the bearing is from the Reali-Slim metric series of thin-section bearings.
- 200: Specifies the bore diameter of 200 mm.
- 08: Denotes the cross-section width of 8 mm.
- A: Signifies the contact angle of 30°, optimized for carrying high axial loads.
- R0: Indicates a standard radial internal clearance and open (non-shielded) construction.
K20008AR0 Bearing Structural Features & Performance Benefits
The design of the K20008AR0 translates into distinct performance advantages:
- High Load Capacity in a Compact Design: The single-row angular contact design with a 30° contact angle provides excellent capability for handling combined radial and axial loads. Its thin-section profile offers a high load capacity relative to its small size and weight (0.23 kg).
- Precision and Rigidity: Built to ABEC-1 tolerance class, this bearing ensures consistent running accuracy. The brass cage provides stability and guides the balls effectively, contributing to smooth operation.
- Material Durability: Components made from chrome steel offer high hardness and wear resistance, ensuring a long service life under demanding conditions.
- Versatile Operation: The pre-applied lubrication and open seal type allow for flexibility in re-lubrication and use in various environments within its specified temperature range.
K20008AR0 Bearing Typical Application Areas
The K20008AR0 is suited for a wide range of precision equipment where space and weight are critical constraints. Key industries and applications include:
- Robotics: Joints and rotary actuators.
- Aerospace: Control mechanisms, gyroscopes, and instrumentation.
- Medical Equipment: Scanners, centrifuges, and surgical robots.
- Semiconductor Manufacturing: Wafer handling and precision positioning stages.
- Optical and Imaging Systems: Rotary stages for cameras and sensors.
