RW155
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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RW155 Bearing Product Overview & Core Advantages
The RW155 is a single row deep groove ball bearing designed for exceptional performance in compact applications requiring high precision. Manufactured to ABEC1 tolerance class, this bearing offers reliable operation for radial loads with a dynamic load rating of 69 lbf. Its inch-series dimensions, including a 0.15625" bore, make it ideal for precision instruments and small machinery where space is at a premium. The open design allows for versatile lubrication options to suit specific operational needs.
Model Code Breakdown
| Code Element | Technical Significance |
|---|---|
| RW155 | Basic bearing designation indicating size and series |
| Open | No seals or shields, allowing for custom lubrication |
| Extended Inner Ring | Provides additional mounting surface and axial location |
| MC3 Clearance | Specifies radial internal clearance of 0.00008" to 0.0005" |
RW155 Bearing Structural Features & Performance Benefits
This bearing features a single row deep groove raceway design optimized for radial load applications. The stainless steel cage ensures stable ball guidance and contributes to smooth operation at speeds up to 53,000 rpm. With 10 precision chrome steel balls and MC3 radial clearance, it delivers consistent performance across a wide temperature range (-86 to 230 °F). The extended inner ring design facilitates easier mounting and provides improved axial location capability. The open construction allows for optimal lubrication management, extending service life in demanding applications.
RW155 Bearing Typical Application Areas
The RW155 finds extensive use in precision applications including:
- Small electric motors and miniature gearboxes
- Medical devices and laboratory equipment
- Optical instruments and precision mechanisms
- Office automation equipment and computer peripherals
- Robotic components requiring compact bearing solutions
