RW156
RW Series Extended Inner Ring Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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RW156 Bearing Product Overview & Core Advantages
The RW156 is a single row deep groove ball bearing designed for high-performance applications requiring reliable radial load capacity. Manufactured to ABEC1 precision standards, this inch-series bearing features an extended inner ring for enhanced mounting flexibility and axial location. Its optimized internal geometry and high-quality chrome steel construction deliver smooth operation and long service life in demanding environments. The open design requires external lubrication, making it suitable for customized lubrication systems operating within a wide temperature range of -86 to 230 °F.
RW156 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Meaning |
|---|---|
| RW156 | Basic bearing designation in inch series |
| Open | No seals or shields, requiring external lubrication |
| Extended Inner Ring | Provides additional mounting surface and axial location capability |
| ABEC1 | Precision tolerance class ensuring consistent performance |
| MC3 | Radial internal clearance group (0.00008" to 0.0005") |
RW156 Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: Features 10 precision balls with diameter of 0.0394" arranged in a deep groove raceway, providing excellent radial load capacity (69 lbf dynamic, 27 lbf static) and smooth rotational characteristics.
Extended Inner Ring Design: The 0.1406" inner ring width extends beyond the standard bearing width, offering improved axial location and simplified mounting in housing designs.
High-Quality Material Construction: Chrome steel rings and balls combined with stainless steel cage ensure durability, corrosion resistance, and reliable performance under the specified limiting speed of 53,000 rpm.
Precision Manufacturing: Manufactured to ABEC1 tolerance standards with controlled radial internal clearance (MC3 group) for consistent performance and minimal vibration.
RW156 Bearing Typical Application Areas
- Small precision instruments and measuring devices
- Medical equipment components and dental handpieces
- Office automation equipment including printers and scanners
- Small electric motors and miniature gearboxes
- Robotics and automation system components
- Textile machinery spindles and guides
