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美国卡特匹勒公司研制的Challenger65型拖拉机,由橡胶履带驱动,发动机为一台270马力的大缸直喷式涡轮增压柴油机,传动装置有10个前进档(2.6～18.2英里/小时)和两个倒退档(最高4.5英里/小时),用液压差速系统转向. 该拖拉机的新型行走系统,由一付宽度为24.5英尺、厚1.4英寸的钢缆加强硬橡胶履带构成,安装在相距106英寸的前、后轮上,中间用直径40.7英寸、覆盖橡胶层的驱动轮摩擦驱动. 以这种挠性橡胶履带取代铰接式钢履
The Challenger 65 tractor developed by Caterpillar Inc. of the United States is driven by a rubber track. The engine is a 270 hp direct injection turbocharged diesel engine with ten forward gears (2.6-18.2 mph) and two (Up to 4.5 MPH) and is steered with a hydraulic differential system.The new walking system for the tractor consists of a stiff rubberized track reinforced with steel cables of 24.5 feet width and 1.4 inches thick, mounted at 106 inches The front and rear wheels, the middle with a diameter of 40.7 inches, covered with a rubber layer drive wheel friction drive.This flexible rubber crawler instead of articulated steel footwear