SD300AR0
1/2" Stainless Steel 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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SD300AR0 Bearing Product Overview & Core Advantages
The SD300AR0 is a thin-section angular contact ball bearing engineered for applications demanding high precision and space optimization. As part of the Reali-Slim Stainless Steel Bearings series, it features a single-row design with a 30° contact angle, making it exceptionally suited to handle significant combined loads, particularly thrust loads in one direction. Its compact cross-section, with a minimal width of 0.5", allows for lightweight and streamlined machinery designs without compromising on performance. Manufactured entirely from stainless steel and brass, it offers excellent corrosion resistance and reliable operation.
SD300AR0 Bearing Model Code Explained, Specifications & Naming Convention
- SD: Indicates the Reali-Slim series with a 3" cross-section.
- 300: Specifies the nominal bore diameter in inches (3.0000").
- A: Denotes the angular contact design with a 30° contact angle.
- R: Signifies that the bearing is supplied lubricated from the factory.
- 0: Represents the ABEC-1 tolerance class.
SD300AR0 Bearing Structural Features & Performance Benefits
The SD300AR0's performance is a direct result of its precision construction. The single-row angular contact design is optimized to support high axial static load ratings (15,260 lbf) in one direction, in addition to substantial radial dynamic (5,397 lbf) and static loads (24,090 lbf). The use of a brass cage ensures stable operation at moderate speeds. Its thin-section profile significantly reduces weight and space requirements, a critical advantage in compact assemblies. The bearing is pre-lubricated for immediate use and features an open seal type, allowing for custom sealing solutions or re-lubrication if required by the application.
SD300AR0 Bearing Typical Application Areas
- Robotic arms and joints
- Aerospace control mechanisms
- Medical and dental equipment
- Precision rotary tables
- Optical and scanning instrumentation
