61902-2RS1/C3HVT245
618 & 619 Series Thin Section Bearings
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61902-2RS1/C3HVT245 Bearing Product Overview & Core Advantages
The 61902-2RS1/C3HVT245 is a miniature deep groove ball bearing designed for compact applications requiring high precision and reliability. As a sealed single row bearing, it excels in handling radial loads and offers protection against contamination. Its metric dimensions (15mm bore, 28mm OD, 7mm width) make it ideal for space-constrained assemblies. The bearing features a C3 radial internal clearance, suitable for applications with thermal expansion or where interference fits are used, ensuring consistent performance under varying operational conditions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 61902 | Basic bearing series: Miniature deep groove ball bearing with 15mm bore, 28mm OD, 7mm width. |
| 2RS1 | Seal type: Contact rubber seals on both sides, providing effective protection against contaminants and moisture. |
| C3 | Radial internal clearance: Greater than normal clearance, accommodating thermal expansion or interference fits. |
| HVT245 | Lubrication code: Indicates the specific high-performance grease used for extended service life. |
61902-2RS1/C3HVT245 Bearing Structural Features & Performance Benefits
Constructed entirely from chrome steel for rings, balls, and cage, this bearing ensures high strength and durability. The single row deep groove design provides excellent radial load capacity (980 lbf dynamic, 504 lbf static). The 2RS1 double seals offer superior contamination exclusion, making the bearing suitable for harsh environments and contributing to its maintenance-free characteristics. With a limiting speed of 34,000 rpm and ABEC 1 (ISO P0) precision, it delivers reliable performance in high-speed applications. The C3 clearance provides operational stability under thermal variations, while the HVT245 grease ensures optimal lubrication across a wide temperature range (-30°C to 120°C).
61902-2RS1/C3HVT245 Bearing Typical Application Areas
- Small electric motors and miniature gearboxes
- Precision instruments and laboratory equipment
- Office automation devices (printers, scanners, copiers)
- Medical devices and dental handpieces
- Robotics and small automation systems
- Computer cooling fans and small pumps
