Cylindrical Roller Bearings SKF N307 ECP

The SKF N307 ECP cylindrical roller bearing is a single-row non-locating bearing with a polyamide cage and a separable outer ring, measuring 35x80x21 mm.

As a single-row roller bearing, the SKF N307 ECP cylindrical roller bearing can withstand high radial loads. Thanks to its cylindrical rollers, this design offers a line-contact surface, which increases rigidity compared with ball bearings. The design as a non-locating bearing allows for axial length changes directly within the bearing housing. In the SKF Explorer version, the bearing unit benefits from an optimised internal design that reduces friction and promotes smooth running.

What functions does the N307 ECP cylindrical roller bearing fulfil as a non-locating bearing?

Design engineers primarily use this cylindrical roller bearing where high radial loads occur at medium to high speeds and thermal linear expansion of the shaft needs to be compensated for. Typical applications are found in general mechanical engineering on rotating shafts that require free axial movement. As the outer ring can be removed from both sides, the component functions purely as a non-locating bearing. It guides the shaft radially but does not absorb any axial forces, thereby helping to prevent mechanical stress in the drive train.

What are the distinctive features of the N design and the polyamide cage?

In the N design, the guide flanges are located on the inner ring, whilst the outer ring has no flanges. This simplifies the separate assembly of both rings and facilitates maintenance work on the bearing assembly. The lightweight polyamide cage guides the rollers quietly and reduces inertial forces. An operating temperature range of -30 to +120 degrees is permitted. As this is an open bearing without an integrated seal, the system requires an external housing seal and a lubricant supply.