詳細(xì)介紹 SF-1D液壓專用軸承金相分析及材料組織結(jié)構(gòu) 1、聚四氟乙烯與親油性纖維混合物0.01-0.03mm 2、球形青銅粉0.2-0.3mm 3、鋼背0.7-2.3mm 4.電鍍層:鍍錫層厚0.005mm,或鍍銅層厚0.008mm 產(chǎn)品說明SF-1D液壓專用軸承,是在SF-1P的基礎(chǔ)上結(jié)合油缸及減震器工作原理而設(shè)計的一種新型材料,在無油的條件下顯得更耐磨,該產(chǎn)品除具有SF-1P的優(yōu)點(diǎn)外,特別適用于往復(fù)頻繁的大側(cè)向力場合。其性能與國外DP4相似,目前該產(chǎn)品逐步替代SF-1P產(chǎn)品,適用于汽車、摩托車減震器以及各種液壓缸等領(lǐng)域。技術(shù)參數(shù)承載壓力:140N/mm2 適用溫度范圍:-195~+280攝氏度 滑動速度:3m/s 摩擦系數(shù):0.04~0.20 允許PV值(干):3.8N/mm2 .m/s 允許PV值(油):50N/mm2 .m/s應(yīng)用特點(diǎn):1.PTFE、親油性纖維的混合物在運(yùn)動時可形成很好的轉(zhuǎn)移膜保護(hù)對磨軸。2.耐磨性能好,磨擦系數(shù)低。3.走合性能好,無咬軸現(xiàn)象。4.可運(yùn)用于旋轉(zhuǎn)、搖擺、往復(fù)運(yùn)動之中。5.由于不含鉛,故可運(yùn)用于食品機(jī)械、醫(yī)療機(jī)械等綠色環(huán)保設(shè)備。6.產(chǎn)品除具有SF-1P的特點(diǎn)外,特別適合于往復(fù)運(yùn)動頻繁、大側(cè)向力的場合,適用于汽車、摩托車減震器及各類液壓油缸等領(lǐng)域。SF-1D系列 化學(xué)特性軸承型號 空氣中 真空中 水中 蒸氣中 弱酸中 中酸中 強(qiáng)酸中 堿性溶液中 SF-1D 好 好 好 好 差 否 否 好 SF-1D 端面摩擦磨損試驗(yàn)型號 試驗(yàn)時間 試驗(yàn)條件 摩擦系數(shù) 最終溫度(攝氏度) 最終磨損量(mm) 潤滑 速度 壓力 SF-1D 3hr 干 0.4m/s 3.5N/mm2 0.175 98 0.012 SF-1D 3hr 油 0.4m/s 3.5N/mm2 0.054 46 0.004 SF-1D標(biāo)準(zhǔn)公差尺寸表 Unit:mm 相配軸徑公差相配座孔公差(H7)軸承外徑公差壓入座孔后軸承內(nèi)徑公差壁厚 f1f2L0-0.40(d≤φ30 L -0.3d>φ30 L -0.4)681012152025304050606-0.013 -0.0288+0.0158+0.055+0.0255.9906.0550.9801.0050.60.3060606080610 8-0.013-0.02810+0.01510+0.055+0.0257.9908.0550806080808100801208015 10-0.016-0.03412+0.01812+0.065+0.030 9.99010.058100610081010101210151020 12-0.016-0.03414+0.01814+0.065+0.03011.99012.0581206120812101212121512201225 13-0.016-0.03415+0.01815+0.065+0.03012.99013.058 1310 1320 14-0.016-0.03416+0.01816+0.065+0.03013.99014.058 14101412141514201425 15-0.016-0.03417+0.01817+0.065+0.03014.99015.058 15101512151515201525 16-0.016-0.03418+0.01818+0.065+0.03015.99016.058 16101612161516201625 17-0.016-0.03419+0.02119+0.075+0.03516.99017.061 17101712 1720 18-0.016-0.03420+0.02120+0.075+0.03517.99018.061 18101812181518201825 20-0.020-0.04123+0.02123+0.075+0.03519.99020.0711.4751.5050.60.4 201020122015202020252030 22-0.020-0.04125+0.02125+0.075+0.03521.99022.071 221022122215222022252230 24-0.020-0.04127+0.02127+0.075+0.03523.99024.071 2415242024252430 25-0.020-0.04128+0.02128+0.075+0.03524.99025.071 25102512251525202525253025402550 28-0.020-0.04132+0.02532+0.085+0.04527.99028.0851.9702.0051.20.4 28152820282528302840 30-0.020-0.04134+0.02534+0.085+0.04529.99030.285 301230153020302530303040 32-0.025-0.05036+0.02536+0.085+0.04531.99032.085 3220 32303240 35-0.025-0.05039+0.02539+0.085+0.04534.99035.085 3512351535203525353035403550 38-0.025-0.05042+0.02542+0.085+0.04537.99038.085 3815 38303840 40-0.025-0.05044+0.02544+0.085+0.04539.99040.085 4012 40204025403040404050 相配軸徑公差相配座孔公差(H7)軸承外徑公差壓入座孔后軸承內(nèi)徑公差壁厚 f1f2L0-0.40202530405060708010011545-0.025-0.05050+0.02550+0.085+0.04544.99045.1052.4602.5051.80.645204525453045404550 50-0.025-0.05055+0.03055+0.100+0.05549.99050.1105020 5030504050505060 55-0.030-0.06060+0.03060+0.100+0.05554.99055.110 5530554055505560 60-0.030-0.06065+0.03065+0.100+0.05559.99060.110 60306040605060606070 65-0.030-0.06070+0.03070+0.100+0.05564.99065.110 65306540655065606570 70-0.030-0.06075+0.03075+0.100+0.05569.99070.110 70407050706070707080 75-0.030-0.06080+0.03080+0.100+0.05574.99075.110 753075407550756075707580 80 -0.03085+0.03585+0.120+0.07080.02080.1552.4402.4901.80.6 8040805080608070808080100 85 -0.03590+0.03590+0.120+0.07085.02085.155 8540 8560 858085100 90 -0.03595+0.03595+0.120+0.07090.02090.155 904090509060 908090100 95 -0.035100+0.035100+0.120+0.07095.02095.155 95509560 958095100 100 -0.035105+0.035105+0.120+0.070100.020100.155 1005010060 10080 100115105 -0.035110+0.035110+0.120+0.070105.020105.155 10560 10580 105115110 -0.035115+0.035115+0.120+0.070110.020110.155 11060 11080 110115120 -0.035125+0.040125+0.170+0.100120.070120.2102.4152.4651.80.6 12060 12080112100 125 -0.040130+0.040130+0.170+0.100125.070125.210 12560 125100125115130 -0.040135+0.040135+0.170+0.100130.070130.210 13060 13080130100 140-0.040145+0.040145+0.170+0.100140.070140.210 14060 14080140100 150 -0.040155+0.040155+0.170+0.100150.070150.210 15060 15080150100 160 -0.040165+0.040165+0.170+0.100160.070160.210 16060 16080160100160115180 -0.040185+0.046185+0.210+0.130180.070180.2162.4152.4652.4152.4651.81.80.60.6 18080180100 190-0.046195+0.046195+0.210+0.130190.070190.216 19080190100 200-0.046205+0.046205+0.210+0.130200.070200.216 20060 20080200100 220-0.046225+0.046225+0.210+0.130220.070220.216 22080220100 250-0.046255+0.052255+0.260+0.170250.070250.222 25080250100 260-0.052265+0.052265+0.260+0.170260.070260.222 26080260100 280-0.052285+0.052285+0.260+0.170280.070280.222 28080280100 300-0.052305+0.052305+0.260+0.170300.070300.222 30080300100