Axial stud type track roller LR-2...-NPP(U)

radialsingle-rowzinc

In track rollers and stud-type track rollers, balls are used as rolling elements and, like cam followers (with needles as rolling elements), they have a reinforced outer ring that serves as a running area and preferably has a spherical design so that no edge stresses arise under high loads. Track rollers do not have a threaded end and are instead installed on a suitable axle. In addition to radial forces, they can also absorb axial forces. They are available in single-row and double-row designs.. Stud-type track rollers already have a threaded end and comprise a double-row ball bearing. Related products: Track rollers with a raceway profile Inadequate sealing can allow external environmental conditions to have an extremely negatively impact on running characteristics and thus a bearing’s service life. For this reason, bearings must be protected by seals. At the same time, seals also prevent lubricants from leaking. NPP/NPD/KRD: integrated contact seals; alternative designation: 2RS, DRS KDD: integrated dust shields with a gap for low-friction motion with a limited protective effect; alternative name: ZZ oder 2Z Note: The NUTR series has a labyrinth seal due to a seal washer sheet. Track rollers are usually lubricated for life. The LR-5... series has lubrication hole in its inner ring that can be used to add lubricant. Coated track rollers The manufacturer Schaeffler offers its products with its special "Corrotect" coating. We also supply designs with a zinc-iron (ZnFe) and a zinc-nickel coating.