SR168
SR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SR168 Bearing Product Overview & Core Advantages
The SR168 is a precision single row deep groove ball bearing engineered for reliable performance in demanding applications. Manufactured to ABEC1 tolerance standards with stainless steel construction throughout, this bearing delivers excellent corrosion resistance and durability. Its compact inch-dimension design (0.25" bore × 0.375" OD × 0.125" width) makes it ideal for space-constrained installations requiring high rotational accuracy and smooth operation. The open design allows for optimal lubrication flexibility while maintaining radial load capacity of 64 lbf dynamic and 28 lbf static.
Model Code Technical Breakdown
| Code Element | Technical Significance |
|---|---|
| SR168 | Standard single row deep groove ball bearing in inch dimensions |
| Open | No seals/shields - enables custom lubrication and high-speed operation |
| ABEC1 | Precision tolerance class ensuring consistent running accuracy |
| MC3 | Radial internal clearance group (0.00008" to 0.0005") for general applications |
SR168 Bearing Structural Features & Performance Benefits
Full stainless steel construction provides superior corrosion resistance and dimensional stability across the operating temperature range (-86 to 230 °F). The deep groove raceway geometry enables efficient radial load distribution while accommodating moderate axial loads in both directions. With 11 precision-grade balls of 0.03941" diameter, the bearing maintains low vibration levels and smooth rotation up to 43,200 rpm. The MC3 radial clearance ensures optimal performance under normal operating conditions and temperatures. The one-piece stainless steel cage ensures reliable ball guidance and cage stability at high speeds.
SR168 Bearing Typical Application Areas
- Medical devices and laboratory equipment requiring corrosion-resistant components
- Precision instruments and optical devices demanding high running accuracy
- Small motors and miniature mechanical systems in inch-dimension designs
- Food processing equipment where stainless steel construction is mandatory
- Robotics and automation components requiring reliable bearing performance
- Dental handpieces and other high-speed medical tools
