SKF
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 25 | 2,09 € | 39,76 € |
| 35 | 4,19 € | 37,66 € |
The SKF 4206 ATN9 deep-groove ball bearing, a double-row rolling bearing with a 30 mm bore, offers high radial load-carrying capacity in a compact design.
Thanks to its two rows of balls, the SKF 4206 ATN9 double-row deep groove ball bearing can accommodate higher radial forces than single-row versions with the same bore diameter. With dimensions of 30 mm internal diameter, 62 mm external diameter and 20 mm width, this design is suitable for applications with limited radial installation space. The bearing is made from standard 100Cr6 rolling bearing steel and has a normal radial clearance in the standard tolerance class P0/PN or ABEC 1.
Design engineers primarily use this double-row bearing where combined radial and axial loads occur and the load-carrying capacity of single-row bearings is insufficient. Typical applications are found in bearings used in general mechanical engineering subject to high load levels. As the outer ring has no flange or groove, the component can be fitted flush into cylindrical housing bores.
The designator ATN9 indicates a polyamide cage. This material reduces the weight of the rolling element assembly and promotes quiet, vibration-damped operation. In combination with the open design without integrated sealing washers, the bearing is designed for a temperature range of –20 to +120 degrees. When designing the application, it should be noted that open roller bearings require an external housing seal as well as a suitable lubricant supply with oil or grease.
The bearing has an internal diameter of 30 mm, an external diameter of 62 mm and a width of 20 mm. Thanks to its double-row design, the component offers a higher load-carrying capacity for a given bore than comparable single-row designs with the same internal diameter.
The designation ATN9 describes the cage design of the rolling bearing. It denotes a polyamide ball cage. The material is characterised by good sliding properties and low inertia, which makes the bearing run particularly smoothly and quietly.
The component is manufactured with standard radial bearing clearance. This standard value ensures the necessary operating clearance between the balls and the raceways of the inner and outer rings, provided that the shaft and housing fits are standard and operating temperatures are moderate.
The permissible operating range is between -20 and +120 degrees Celsius. The limiting factor here is the polyamide cage, the material structure of which is specified for this temperature range. The external lubricant selected must also be suitable for this temperature range.
As an open bearing, the product has no permanently fitted cover plates or sealing discs. This design allows external lubricating oil or grease to circulate freely directly onto the rows of balls; however, it requires an enclosure that is protected against dirt and moisture.
A double-row ball bearing has two parallel grooves with rows of balls in the inner and outer rings. With the same bore and a comparable diameter, it can withstand higher radial and axial loads; however, it requires a wider housing than standard single-row bearings.
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