NTN KRT47LL/3AS cam follower

NTN KRT47LL/3AS belongs to cam follower, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for KRT47LL/3AS and any equivalents.

The NTN KRT series is a stud-type cam follower built around a cylindrical roller bearing. It carries radial load while rolling directly against a cam, track or guide surface, so the roller follows the contact path instead of sliding along it. The sealed construction suits areas where dust, chips or ongoing lubrication are part of daily operation.

You can decode a KRT code in two steps. The letters mark the stud-type cam follower family, and the digits that follow give the outside diameter in millimeters. So KRT16LL/3AS is a roller measuring 16 mm across the outside, KRT40LL/3AS measures 40 mm, and every other number in the series works the same way. The LL suffix means double lip sealing, while /3AS identifies a factory execution with its own lubrication and treatment. Size and sealing are therefore both written into the reference.

Typical mounting points include drive cams, linear guides, conveyors, machine tools, packaging machinery and transmission systems. The roller takes the load and keeps friction low as it rotates, which is what makes it hold up under repeated contact. Because it is a wear part, the diameter and sealing style should be matched to the space available and to what the surrounding environment throws at it.

When specifying a replacement, start with the outside diameter the housing or track allows, then confirm the width and the sealing arrangement. The LL version, with its double lip, is the choice for areas where particles are present. During installation, line the stud up with the raceway, apply a lubricant that matches the working temperature, check that the contact surface is ground and free of damage, and make sure the fastening stops any axial movement. Getting these points right pays off in service life.

Cam followers are generally identified by diameter and configuration, so other brands may list comparable items. If you are holding a competitor's code, we can point you toward the matching NTN reference. Whether the swap works depends on dimensions and sealing type, so the technical data should be compared before you install anything. Send us the original code and we will review it with you.

For an NTN KRT series cam follower, message us on WhatsApp with the code or the size you need. We reply quickly and, when necessary, suggest a compatible alternative. We can also walk you through mounting and lubrication so the component performs as intended in your application.