DKF大号高速精密球螺钉


笔记:
1)当预紧力F为0.1CA并且轴向负载f为0.3C时,K是理论计算值;
2)当轴向负载f不等于0.3C时,公式中的k是表中的刚度值
3)这种类型的球螺钉适用于高速应用;
4)正常工作环境温度范围为±80℃/176°F

类型1

type2

模型 | 名义直径 | 名义铅 | 螺钉外径 | 螺丝底直径 | 球直径 | 周期 | 负载等级 | 螺母安装连接尺寸 | |||||||||||||
动态负载 | 统计负载 | 刚性 | D1(G6) | D2(-0.1 -0.2) | L2 | D3 | B | D4 | D5 | 类型 | T | t₁ | M | l₁ | |||||||
d0 | PH0 | d1 | d2 | Dw | n | ca kn | coa kn | KC N/μm | |||||||||||||
DKF2020-2 | 20 | 20 | 19.5 | 16.8 | 3.5 | 2 | 6.1 | 12.7 | 376.8 | 40 | 40 | 10 | 62 | 12 | 51 | 6.6 | 1 | 24 | 48 | M6 | 60 |
DKF2525-2 | 25 | 25 | 25 | 22 | 3.969 | 2 | 8.1 | 18.2 | 462.9 | 47 | 47 | 10 | 68 | 12 | 57 | 6.6 | 27 | 54 | M6 | 72 | |
DKF3240-2 | 32 | 40 | 31 | 27.2 | 5 | 2 | 12.2 | 29.6 | 568.2 | 58 | 58 | 10 | 88 | 14 | 73 | 9 | 33 | 66 | M6 | 112 | |
DKF4040-2 | 40 | 40 | 39 | 35.2 | 5 | 2 | 13.9 | 37.8 | 713.7 | 68 | 68 | 20 | 100 | 14 | 85 | 9 | 2 | 37.5 | 75 | M8x1 | 109 |
DKF4040-2 | 40 | 40 | 39 | 34.7 | 6.35 | 2 | 19.5 | 49.1 | 751.6 | 70 | 70 | 30 | 100 | 14 | 85 | 9 | 37.5 | 75 | M8x1 | 114 | |
DKF5050-2 | 50 | 50 | 49 | 44.4 | 6.35 | 2 | 21.5 | 61.1 | 894.8 | 82 | 82 | 30 | 118 | 16 | 100 | 11 | 46 | 92 | M8x1 | 134 | |
DKF6363-2 | 63 | 63 | 61 | 56.4 | 6.35 | 2 | 23.5 | 75.3 | 1054.2 | 95 | 95 | 30 | 135 | 22 | 115 | 13.5 | 50 | 100 | M8x1 | 160 | |
DKF8040-4 | 80 | 40 | 78 | 68.9 | 12.7 | 4 | 173.4 | 575.3 | 3961.7 | 140 | 140 | 30 | 190 | 32 | 165 | 13.5 | 80 | 160 | M8x1 | 231 | |
DKF12560-3 | 125 | 60 | 124 | 114.4 | 12.7 | 3 | 161.7 | 661.2 | 4219.9 | 180 | 180 | 30 | 254 | 36 | 210 | 22 | 110 | 220 | M8x1 | 250 |