drylin® linear plain bearings do without rolling objects or balls. This makes the bearing independent of the mass inertia of this body and can be used with high speeds up to 10 m/s and accelerations up to 100G. drylin® linear bearings are thus suitable for applications with light loads, whose cycle rates should be increased. The use of hard-coated aluminum as a friction partner lowers the operating temperature in the bearing due to the high thermal conductivity of aluminum. Thus the operation can be carried out with a high frequency even at very short stroke lengths.
The maximum average surface speed results from the load on the bearings. With decreasing surface load, higher speeds can be achieved. More important than the maximum speed reached is the average speed in a period of time, because it has the most influence on the heating of the bearing system. In cases with breaks between the individual cycles, the maximum average surface speed is decisive, which is achieved during a period of 10 to 30 minutes.
||[W/m x K]
|Unalloyed steel ||48-58
|High-alloyed steel ||15
Table 01: Heat conductivity Average surface speed
= Travel distance per cycle [m] / total cycle time [sec].