61818
618 & 619 Series Thin Section Bearings
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61818 Bearing Product Overview & Core Advantages
The 61818 is a metric single row deep groove ball bearing engineered for high-precision radial load applications. This bearing features an open design and is manufactured to P6 tolerance class, ensuring superior running accuracy and rotational precision. Its compact cross-section, with a 90 mm bore and only 13 mm width, makes it an ideal solution for space-constrained assemblies requiring high reliability and consistent performance under demanding conditions.
61818 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 61818 | Basic model number for a metric single row deep groove ball bearing. |
| Open (No Seal/Shield suffix) | No integral seals or shields, allowing for higher limiting speeds and optimal heat dissipation. |
| P6 Tolerance Class | Indicates tighter dimensional and running accuracy tolerances than standard (P0) bearings. |
| CN Radial Clearance | Specifies standard (normal) radial internal clearance. |
61818 Bearing Structural Features & Performance Benefits
The performance of the 61818 bearing is derived from its robust construction and material selection. The single row deep groove raceways are precision-ground to facilitate smooth operation and handle high radial dynamic loads up to 4384 lbf. The use of a stainless steel cage ensures excellent durability and guidance of the chrome steel balls, contributing to stable operation at the maximum limiting speed of 7,000 rpm. The open design allows for versatile lubrication options tailored to specific application needs, while the P6 tolerance guarantees precise shaft positioning and reduced vibration.
61818 Bearing Typical Application Areas
This precision bearing is suited for a wide range of industrial machinery and equipment where high rotational accuracy and reliability are paramount. Common applications include:
- Electric Motors and Generators
- Precision Gearboxes
- Material Handling Equipment
- Industrial Pumps and Fans
- Office machinery and precision instruments
