61904-2RS1/C3HGJN
618 & 619 Series Thin Section Bearings
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61904-2RS1/C3HGJN Bearing Product Overview & Core Advantages
The 61904-2RS1/C3HGJN is a metric single row deep groove ball bearing engineered for high reliability in compact spaces. Its sealed construction provides inherent protection against contamination, making it an excellent choice for applications demanding long service life with minimal maintenance. This bearing is characterized by its ability to handle primarily radial loads efficiently, while its precision ABEC 1 (ISO P0) tolerance ensures consistent performance. The combination of a C3 radial internal clearance and high-grade components makes it suitable for operational scenarios involving thermal expansion or requiring higher rotational precision under load.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 61904 | Series & Size Designation | Indicates a 619 series deep groove ball bearing with a 20mm bore, 37mm OD, and 9mm width. |
| 2RS1 | Sealing | Features contact seals on both sides, providing superior protection against dust and moisture ingress. |
| C3 | Radial Internal Clearance | Specifies a greater than normal clearance, ideal for applications with thermal expansion or where fit interference is a concern. |
| HGJN | Lubrication (Manufacturer Specific) | Indicates the bearing is pre-lubricated with a specific, high-performance grease suitable for the stated temperature range. |
61904-2RS1/C3HGJN Bearing Structural Features & Performance Benefits
- Robust Sealed Design: The 2RS1 double-contact seals effectively retain lubricant and exclude contaminants, significantly extending bearing life and enabling maintenance-free operation in many environments.
- Optimized Load Capacity: Manufactured from chrome steel for both rings and balls, this bearing delivers a high dynamic load rating of 1432 lbf and a static load rating of 821 lbf, ensuring durability under radial stresses.
- Precision & Stability: Built to ABEC 1 (ISO P0) tolerance standards, it offers reliable running accuracy. The C3 clearance provides operational stability in applications prone to shaft heating or tight housing fits.
- Versatile Temperature Range: The specified grease and material construction allow for a broad operating temperature range from -30°C to 120°C, accommodating various industrial conditions.
61904-2RS1/C3HGJN Bearing Typical Application Areas
This bearing's compact size, sealed nature, and robust performance make it ideal for a wide range of applications, including:
- Small Electric Motors (e.g., cooling fans, appliance motors)
- Precision Instruments and Medical Devices
- Office Machinery such as printers and scanners
- Light-duty Gearboxes and Power Transmission Systems
- Idler Pulleys and Conveyor Rollers
