R168
R Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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R168 Bearing Product Overview & Core Advantages
The R168 is a precision single row deep groove ball bearing manufactured to inch dimensions. Engineered for high reliability in compact spaces, this bearing is designed to primarily accommodate radial loads while also handling moderate axial loads in both directions. Its open design allows for versatile lubrication options, making it suitable for a wide range of industrial applications requiring consistent performance and ABEC1 precision.
R168 Bearing Model Code Explained, Specifications & Naming Convention
The R168 model designation follows a standard industry format for inch series bearings. Key specifications are detailed below:
| Feature | Code/Value | Technical Significance |
|---|---|---|
| Seal Type | Open | No integral seals; allows for custom lubrication schemes and higher limiting speeds. |
| Tolerance Class | ABEC1 | Defines standard precision levels for runout and dimensional accuracy. |
| Internal Clearance | MC3 | Specifies a radial internal clearance range suitable for most general applications. |
R168 Bearing Structural Features & Performance Benefits
The R168's performance is derived from its robust construction and material selection:
- High-Grade Materials: Both rings and 11 precision balls are manufactured from Chrome Steel, providing excellent wear resistance and durability. The stainless steel cage ensures stability and corrosion resistance.
- Optimized Load Capacity: The single row deep groove construction is highly effective at carrying radial loads (71 lbf dynamic, 31 lbf static) and is capable of supporting bidirectional axial loads.
- Versatile Performance: With a limiting speed of 48,000 rpm and a wide operating temperature range (-86 to 230 °F), this bearing is adaptable to various operational environments.
- Precision Engineering: Tight dimensional tolerances on the bore diameter (0.25"), outside diameter (0.375"), and controlled radial internal clearance contribute to smooth, low-vibration operation.
R168 Bearing Typical Application Areas
The R168 inch series ball bearing is ideally suited for applications where compact size, standard precision, and reliable performance are paramount. Common uses include:
- Small electric motors and gearboxes
- Precision instruments and optical devices
- Office machinery and computer peripherals (e.g., small fans, printers)
- Medical devices and laboratory equipment
- Light-duty industrial machinery and automation systems
