BEARING PRETENSIONING DEVICE FOR A LARGE-SIZE BEARING UNIT AS WELL AS LARGE-SIZE BEARING UNIT

摘要

The bearing tensioning device serves to preload an employed large bearing unit (2) and has an inner part (28) with an external thread (30) and an outer part (26) with an internal thread (24). These two parts (26,28) are designed for bracing against a bearing ring (12) of the bearing (8) of the large bearing unit (2). For this purpose, the two threads (24,30) engage in each other during rotation of the two parts (26,28) and each have a load transmitting thread flank (32a) and an opposite thread flank (32b), wherein a flank angle (a1) of the load transmitting thread flank (32a) is at most 10 °, preferably at most 5 ° and in particular 0 °.