16340001 crssed roller beairng XR series slewing bearings

Introduction

The XR Series consists of LYMD crossed roller bearings. They provide a highdegree of stiffness and low rotational torque within a minimal envelope. Thisdesign should be considered when a four-point contact ball bearing does notmeet the operating performance requirements for torque and stiffness.

Design Features

The internal configuration consists of cylindrical rollers in a v-shaped groove ineach ring. The rollers are oriented with alternating axes of rotation. Positionedin this manner, the bearing accepts all combinations of radial, thrust, andmoment loads. Rotational torque is less than a four-point contact ball designbecause each roller only transmits load in a single direction, and the greatercontact area and geometry of a roller versus a ball provides a higher degree ofstiffness and rigidity.

A roller of approximately the same size as a ball has greater load-carryingability. However, because not all the rollers are oriented in one direction, theirthrust and moment load capacity is less than that of a four-point ball bearing.Gear teeth or other drive mechanisms can be provided on the inner or outersupport ring, and your choice of hole pattern can be added for bearingretention.

Availability

XR Series bearings are custom manufactured to fit the design andspecification.

Applications

XR Series bearings have been used successfully in applications requiring extrastiffness with a low torque requirement including:

Radar

IMilitary turrets

Machine tools

ITunnel boring machines