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宁波客车修配厂试制成功 NK661型球铰式公共汽车,造型美观,技术性能较好。该车骨架采用半承载式全金属整体结构,耐扭刚性好。前后弹簧钢板采用电车钢板,中后桥采用橡皮付簧,前轴用筒式避震器,缓冲性能好。过桥高低适中,保证轮胎压跳在极限位置时不碰擦,并留有一定的通风间隙。过桥外形,上面成园弧形,两侧八字形,式样大方,加工简单,操纵部分布局比较合理,方向机总长89.6公分,比660型短10公分,方向机轴承改用8105,转向轻便。车厢内通风较好,光线明亮,车头装双联大灯、长方小灯,配以铝制曲线框座,嵌镶网状线条及主体汉语拼音字母,与园弧玻璃相映构成清晰美观大方的整
Ningbo bus repair factory successfully trial NK661 ball hinge bus, handsome in appearance, technical performance is better. The car skeleton half-load all-metal overall structure, good torsion rigidity. Spring steel plate before and after the tram plate, the middle and rear axle rubber pay spring, the front axle with a shock absorber, good cushioning properties. Moderate bridge height, to ensure that the tire pressure jump in the extreme position without rubbing, and leave some ventilation gap. Bridge shape, above the park arc, on both sides of the eight-shaped, generous style, simple processing, control part of the layout is more reasonable, the total length of 89.6 cm direction machine, shorter than 660 660 cm, the direction of the bearing switch to 8105, shift to light. Good interior ventilation, bright light, front mounted double headlights, rectangular light, with aluminum curved frame, embedded mesh lines and the main Chinese phonetic alphabet, with Park arc glass to form a clear and elegant appearance