FIELD: transport.
SUBSTANCE: invention relates to machine building, particularly, to running gear of self-propelled mine machinery, namely to mining crawler machinery. Proposed crawler comprises caterpillar frame 1 with axles 2 for mounting wheels 3 thereon. Tensioning axles 4 with tensioning wheels 5 are arranged at the front of said caterpillar frames 4 while drive wheels are fitted on driver shafts 7. Treads 8 are fitted on tensioning and road wheels. Case 10 of complex seal 9 is secured to caterpillar frame 1. Said complex seal comprises tree-step sealing of friction assemblies: labyrinth seal 14, static seal composed of rubber ring 15 and end contact seal.
EFFECT: longer life, protected bearing assemblies.
5 dwg
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