
O型圈硬度的选择
O型圈硬度的选择是O型圈使用中比较重要的一环。O型圈硬度低,便于O型圈安装,但如果O型圈硬度过于偏低,则容易出现O型圈剥落、安装损伤和挤出等不良状况;若O型圈硬度过高,则不易于O型圈的安装。通常O型圈硬度为40~90度(邵氏硬度),在使用中O型圈一般选用70度是比较合适的,但对于硅橡胶O型圈是个例外,一般使用60 度即可。具体O型圈硬度选用时,需综合考虑O型圈实际使用的环境条件。
JIS B 2401 G 固定用
nok代码 尺寸
G25 24.4*3.1
G30 29.4*3.1
G35 34.4*3.1
G40 39.4*3.1
G45 44.4*3.1
G50 49.4*3.1
G55 54.4*3.1
G60 59.4*3.1
G65 64.4*3.1
G70 69.4*3.1
G75 74.4*3.1
G80 79.4*3.1
G85 84.4*3.1
G90 89.4*3.1
G95 94.4*3.1
G100 99.4*3.1
G105 104.4*3.1
G110 109.4*3.1
G115 114.4*3.1
G120 119.4*3.1
G125 124.4*3.1
G130 129.4*3.1
G135 134.4*3.1
G140 139.4*3.1
G145 144.4*3.1
G150 149.4*5.7
G155 154.4*5.7
G160 159.4*5.7
G165 164.4*5.7
G170 169.4*5.7
G175 174.4*5.7
G180 179.4*5.7
G185 184.4*5.7
G190 189.4*5.7
G195 194.4*5.7
G200 199.4*5.7
G205 204.4*5.7
G210 209.4*5.7
G215 214.4*5.7
G220 219.4*5.7
G225 224.4*5.7
G230 229.4*5.7
G235 234.4*5.7
G240 239.4*5.7
G245 244.4*5.7
G250 249.4*5.7
G255 254.4*5.7
G260 259.4*5.7
G265 264.4*5.7
G270 269.4*5.7
G275 274.4*5.7
G280 279.4*5.7
G285 284.4*5.7
G290 289.4*5.7
G295 294.4*5.7
G300 299.4*5.7
G305 304.4*5.7
G310 309.4*5.7
G315 314.4*5.7
G320 319.4*5.7
G325 324.4*5.7
G330 329.4*5.7
G335 334.4*5.7
G340 339.4*5.7
G345 344.4*5.7
G350 349.4*5.7
G355 354.4*5.7
G360 359.4*5.7
G365 364.4*5.7
G370 369.4*5.7
G375 374.4*5.7
G380 379.4*5.7
G385 384.4*5.7
G390 389.4*5.7
G395 394.4*5.7
G400 399.4*5.7
G405 404.4*5.7
G410 409.4*5.7
G415 414.4*5.7
G420 419.4*5.7
G425 424.4*5.7
G430 429.4*5.7
G435 434.4*5.7
G440 439.4*5.7
G445 444.4*5.7
G450 449.4*5.7
G455 454.4*5.7
G460 459.4*5.7
G465 464.4*5.7
G470 469.4*5.7
G475 474.4*5.7
G480 479.4*5.7
G485 484.4*5.7
G490 489.4*5.7
G495 494.4*5.7
G500 499.4*5.7