619/630 N1MA
618 & 619 Series Thin Section Bearings
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619/630 N1MA Bearing Product Overview & Core Advantages
The 619/630 N1MA is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This precision bearing is characterized by its high radial load capacity and is manufactured to a P6 tolerance class for superior running accuracy. Its open design allows for versatile lubrication options, making it suitable for high-speed operations up to 1,100 rpm. The bearing's robust construction from chrome steel components ensures high rigidity and long service life, ideal for applications requiring reliable support under significant radial loads.
619/630 N1MA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 619 | Series Designation | Indicates a deep groove ball bearing series with a particularly thin cross-section. |
| 630 | Bore Diameter | Specifies a 630 mm bore diameter. |
| N1 | Snap Ring Groove | The outer ring features a snap ring groove, facilitating secure axial location within a housing. |
| MA | Brass Cage | Identifies a window-type cage machined from brass, offering high strength and excellent guidance for high-speed applications. |
619/630 N1MA Bearing Structural Features & Performance Benefits
Optimized for High Radial Loads: The single row deep groove raceway geometry is engineered to support substantial radial dynamic load ratings of 140,281 lbf and radial static load ratings of 301,244 lbf, providing reliable performance in heavy-duty machinery.
High-Speed Capability with Brass Cage: The inclusion of the MA (brass) cage is a key feature for high rotational speeds. This cage design ensures stable ball guidance and reduces friction, contributing to the bearing's limiting speed of 1,100 rpm.
Precision and Rigidity: Manufactured to P6 tolerance with a standard CN radial internal clearance, this bearing guarantees precise shaft rotation and minimizes vibration, which is critical for applications demanding high rigidity and accuracy.
Secure Axial Location: The N1 snap ring groove on the outer ring allows for simple and secure axial positioning within a housing, eliminating the need for complex housing shoulders and simplifying assembly.
619/630 N1MA Bearing Typical Application Areas
The 619/630 N1MA is ideally suited for large-scale industrial equipment where high radial load capacity and precise operation are paramount. Key sectors include:
- Heavy Machinery: Gears, large electric motors, and industrial fans.
- Material Handling: Conveyor system pulleys and crane sheaves.
- Industrial Pumps and Compressors: Where reliable shaft support under significant loads is required.
- Wind Turbines: Used in yaw and pitch control systems or generator locations.
