转K6型转向架采用内、外圈弹簧不等高结构的两级刚度弹簧，空车时仅外圈弹

转K6型转向架采用内、外圈弹簧不等高结构的两级刚度弹簧，空车时仅外圈弹簧承重，重车时由内、外圈弹簧共同承重。 <br>5. 耐磨销套 <br>转K6 型转向架全部采用耐磨销套，即采用奥贝体衬套和 45 号钢淬火圆销，提高圆销表面硬度，同时减小销套间的间隙，提高销套装配精度，以改善销套的受力状态等。

Zhuan K6 bogie adopts two-stage stiffness springs with unequal height structure of inner and outer springs. When the vehicle is empty, only the outer spring bears the load, and when the vehicle is loaded, the inner and outer springs bear the load together.<br>5. Wear resistant pin sleeve<br>All Zhuan K6 bogies adopt wear-resistant pin sleeves, that is, Austempered round pins with Austempered bushing and 45 steel, so as to improve the surface hardness of round pins, reduce the clearance between pin sleeves and improve the assembly accuracy of pin sleeves, so as to improve the stress state of pin sleeves.<br>

ZhuanK6 bogie adopts two-stage stiffness springs with unequal inner and outer ring springs. When empty, only the outer ring spring bears the load, while when heavy, the inner and outer ring springs bear the load together.5. Wear-resistant pin sleeve.ZhuanK6 bogies are all made of wear-resistant pin sleeves, i.e., Austenitic bushings and 45 # steel quenched round pins, which can improve the surface hardness of round pins, reduce the gap between pin sleeves, improve the matching accuracy of pin sleeves, and improve the stress state of pin sleeves.