Pre tightening force to ensure the transmission of life. If the pre tightening force is too large, it will consume power and even cause overheating. If the pre tightening force is too small, under the action of body load, shaft rolling, and the difference between the outer rings, jumping, running, and transmission accuracy will occur to reduce noise increase, affecting gear meshing and causing serious damage to teeth and bearings.
According to different types of self-aligning roller bearings, for example, by directly compressing the inner ring of the bearing with axial force and rotating the bearing preload nut, the gap between the inner and outer rings can be eliminated to achieve the purpose of bearing preload force. Realizing shared use: far ahead of pre installed bearings and nuts, then back 1/4 turn. The advantage of this assembly method is that it requires less investment, is simple, practical, and provides consistent high-quality tapered roller bearings
1. Electric heating plate heating method: Place the bearing on an electric heating plate with a temperature of 100 ℃ for a few minutes. This method is simple, and flipping it a few times can make it