Deep Groove Ball Bearings SKF 4305 ATN9

The SKF 4305 ATN9 double-row deep-groove ball bearing, with a 25 mm bore and a polyamide cage, offers high load-carrying capacity in a compact design.

The 4305 ATN9 deep groove ball bearing is a double-row rolling bearing designed for industrial applications where single-row designs reach their load limits. Manufactured from standard 100Cr6 rolling-element bearing steel, the bearing features two parallel rows of balls in precision raceways. The open design allows for flexible lubrication via the surrounding housing. With dimensions of 25x62x24 mm, this SKF design combines a medium-sized shaft bore with an extended bearing width to handle demanding radial loads.

What is the 4305 ATN9 double-row deep groove ball bearing suitable for?

This rolling bearing is used in general mechanical engineering for demanding shaft support applications. Thanks to the second row of balls, it can accommodate higher radial forces than a single-row bearing of the same bore, without the need to increase the shaft diameter. At the same time, the geometry accommodates moderate axial forces in both directions. As the bearing is of an open design, installation requires a clean, externally sealed housing environment and a controlled supply of lubricant, either oil or grease.

What are the distinctive features of the polyamide cage in the 4305 ATN9 deep groove ball bearing?

The suffix ATN9 indicates a polyamide cage. This material is characterised by low friction and a low moment of inertia, which reduces noise during operation. The bearing is designed for a temperature range of -20 to +120 degrees. With standard radial clearance and tolerance class P0 (ABEC 1 standard), it meets the current specifications for precise and cost-effective mechanical engineering.