Counterpart in translation - rod, spike, bushing. Trunnion is an axle that is attached to the base, body or platform. A bearing or moving part may be attached to the journal.
The trunnion is the supporting part of the shaft or axle. Depending on its location, it has different names (in the middle of the axle - collar, at the end of the axle - bearing, if it is an end bearing - penta). It is used in the automotive industry.
It is a part of the running gear of a trailer. Advantages: the use of bearings of different seating diameters facilitates mounting-dismounting due to the lower force of pressing-pressing; increased service life of bearing journals due to the contact area of more than 70% with the bearing journals; manufacturing from structural steel with low carbon content increases service life; as a result of heat treatment (hardening and high tempering) - increases the strength and hardness and decreases the plasticity of structural and tool steels and alloys, which also increases the service life of the bearing journals.
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