DURBAL heavy-duty rod ends with integral self-aligning ball bearings, Series BRM,BRF,PM,PF This design is especially suitable for high speeds, large swiveling angles or rotating movements with relatively low or medium loads. Prominent technical features are the low bearing friction, sealing against rough dirt penetration by means of shields on both sides. Under normal operating conditions the rod ends are maintenance-free. A Grease nipple is provided for lubrication during rough service and maximum loads. To avoid incompatibility with the initial lubrication, we recommend lubricating with a calcium-complexsoap- grease or Polyrex EP2. A special heat treatment procedure matches the rod end housing raceway hardness to the antifriction bearings, ensuring the same time high stability with changing loads. DURBAL heavy-duty rod ends with integral self-aligning roller bearings, Series BRTM, BRTF The design based on the structure of a self-aligning roller bearing is preferably used for high speed, large tilting angles or rotating motion with medium loads. Compared to rod ends with selfaligning ball bearings, rod ends with selfaligning roller bearings have essentially higher basic load ratings. This design is equipped with a cage to minimize the rolling friction and heat built-up. These rod ends are under normal operating conditions maintenance-free. A Grease nipple is provided for lubrication in case of rough operation and maximum load. To avoid incompatibility with the initial lubrication, we recommend lubricating with a calcium-complexsoap- grease or Polyrex EP2. Shields on both sides prevent dirt particles from penetrating into the bearing. The rod ends with selfaligning roller bearings are, just as the design with self-aligning ball bearings, subjected to a special heat treatment procedure to match the racway hardness to the antifriction bearings, ensuring at the same time a high stability with changing loads and temperature.

DURBAL heavy-duty rod ends with a integral maintenance-free spherical plain bearing, Series BEM, BEF, EM, EF In many cases DURBAL heavy-duty rod ends with integrated spherical plain bearing serve their purpose. They are primarly used for small swiveling or tilting movements at low speeds. They stand out for their high loadability and can also be used for shock loads.The ball slides on a composite bearing shell consisting of a glass fiber-filled nylon/teflon component. This design ensures an absolutely maintenance-free rod end. DURBAL heavy-duty plain bearing rod ends have a slight initial stress and virtually no clearance. The composite material used has a favorable secondary advantage in that it absorbs any foreign particles and embeds them so that no damage can occur. The joint balls of DURBAL heavy-duty rod ends with integrated spherical plain bearings are hard chrome plated. This reliable corrosion protection ensures that the function of the rod end will not be affected by a corroded ball surface under humid operating conditions.

Basic load ratings Static basic load rating of antifriction bearing rod ends The static basic load rating C0 of an antifriction bearing rod end corresponds to that of a static radial load causing a lasting overall deformation of 1/10.000 of the roller body diameter at the contact point. Static basic load ratings of plain bearing rod ends The static basic load rating C0 of a plain bearing rod end corresponds to that of the static radial load that does not yet cause a lasting deformation at the weakest housing section. It contains at least a 1.2 safety factor compared to the yield stress of the material used for the rod end housing. Dynamic basic load rating of antifriction bearing rod ends The dynamic basic load rating C of an antifriction bearing rod end is the external radial load, unchangeable in size and direction, at which 90 % of a statistical sample of identical rod ends will reach or exceed 1 million of rotations or swiveling movements. Dynamic basic load ratings of plain bearing rod ends The dynamic basic load rating C is the parameter for the calculation of dynamically loaded maintenance-free DURBAL heavy-duty rod ends with integrated spherical plain bearing, in other words, making tilting, swiveling or rotating movements under load. Basic load ratings always depend on the definitions they are based on. For this reason it is not always possible to compare basic load rating data supplied by different manufactures.