K07020AR0
20mm 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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K07020AR0 Bearing Product Overview & Core Advantages
The K07020AR0 is a metric thin-section angular contact ball bearing engineered for applications demanding high precision and compact design. As a single-row bearing with a 30° contact angle, it is specifically designed to support combined loads, handling significant radial and axial loads simultaneously. Manufactured to ABEC-1 precision standards, it ensures reliable performance in space-constrained, high-accuracy assemblies. Its pre-lubricated, open design facilitates high-speed operation while maintaining dimensional stability.
K07020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K07020 | Indicates the bearing size series with a 70mm bore, 110mm outside diameter, and 20mm width |
| A | Signifies angular contact design with 30° contact angle |
| R0 | Denotes standard radial internal clearance (0.0000 – 0.0005") |
K07020AR0 Bearing Structural Features & Performance Benefits
Thin-Section Construction: The bearing's slim profile (20mm width relative to 70mm bore) provides space-saving advantages while maintaining structural integrity, making it ideal for compact machinery designs.
Angular Contact Design: The 30° contact angle enables superior axial load capacity (7672 lbf static) while maintaining excellent radial load performance (5275 lbf static), allowing it to handle combined loading conditions effectively.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore tolerance: -0.015mm to 0), ensuring high running accuracy and reduced vibration in precision applications.
Material Excellence: Constructed with chrome steel rings and chrome steel balls for durability, combined with a brass cage that provides stability at higher operating speeds and temperatures up to 110°C.
K07020AR0 Bearing Typical Application Areas
The K07020AR0 thin-section angular contact ball bearing finds extensive use in:
- Robotics and Automation: Robot arm joints, precision positioning systems
- Aerospace Systems: Actuators, control mechanisms, and instrumentation
- Medical Equipment: Surgical robots, imaging systems, and diagnostic devices
- Semiconductor Manufacturing: Wafer handling equipment, precision stages
- Optical and Instrumentation: Precision rotary tables, measuring instruments
