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塑料轴承
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1.精密塑料轴承
POM和PA材料具备良好的机械强度及耐磨性,适合制作比较精密的塑料轴承,其良好的自润滑性能及低的磨擦系数,在保持塑料轴承传统优势的基础上,可应用于精密及较高转速运转。其中POM塑料轴承是所有塑料轴承中应用最为广泛的一种,一般内外球材料采用POM或PA,保持架采用玻璃纤维增强的尼龙66(GRPA66—25)。滚珠为玻璃球,不锈钢球或陶瓷球,此种轴承碱性环境下表现良好但不适合在酸性腐蚀环境下运行。 | |
2.耐腐蚀塑料轴承
作为氟塑料中最典型的品种,PTFE和PVDF是具有最优良的耐腐蚀性能,其中PTFE更是所有已知工程塑料中耐腐蚀性最好的,可用于所有的浓酸及浓碱场合,包括HF及发烟硫酸硝酸(98%以上)等,且具有良好的高温表现,PTFE证明可用于
180℃ 的高温,PVDF也能用到
150℃ ,但PTEF材料机械强度极低,且尺寸稳定性较差,温度变形大,相比较而言PVDF具有更佳的综合性能,一般内外圈材料选用PTFE或PVDF,保持架材料为PTFE或PVDF,滚珠一般为玻璃球或陶瓷球。 | |
3.抗酸碱塑料轴承
HDPE、PP、UPE材料已证明能用于相对较弱的酸碱交叉环境(30%Cucl2溶液和30%NaoH溶液测试OK)故适用于大多数酸/碱/盐/溶济/油/气体及海水腐蚀环境。具备一般塑料轴承之无油自润滑,抗磁电绝缘等性能,但机械强度较低,容易变形,故不适用于较大负荷及较高转速,相比较而言,UPE材料具备更佳的强度,低磨擦特性及低温应用特性(最低可至-
150℃ ),一般内外圈材料采用HDPE、PP或UPE,保持架材料采用HDPE、PP或UPE,滚珠为玻璃球、不锈钢球或陶瓷球。 | |
4.PEEK/PI塑料轴承(耐高温塑料轴承)
PEEK和PI作为新兴的工程塑料材料,被证明是所有已知工程塑料中机械强度尺寸稳定性及耐高温性能最好的,其中PEEK长期使用温度达
260℃ ,PI长期使用温度更是高达
300℃ ,且其具有优良的耐腐蚀性能,在中等强度的酸碱腐蚀环境仍可以运转自如,故一般用于制作需要在比较严酷环境中精密运转的轴承,其缺点是因材料本身比较昂贵,故使用成本较高,一般内外圈材料选用PEEK或PI,保持架材料为PTFE,PEEK或PI,滚珠一般为Zro2或Si3N4陶瓷球。 | |
5.塑料轴承座及塑料外球面轴承
塑料带座轴承独具重量轻,安装简便,免于维护,同时具有常用铸铁座或冲压座所不具有减震抗冲击性能。随着新材料的不断开发正越来越多地在工程上得到广泛应用。针对不同情况,塑料外球面轴承可采用POM,HDPE,PP,UPE,PTFE等不同材料制作,塑料轴承座一般采用PBT材料。 |
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塑料深沟球轴承尺寸表 | | | | | | | | | | | | | | 外形尺寸(mm) | 有关安装尺寸(mm) | 重量 | | 轴承型号 | | | | | da | da | Da | ra | (kg) | | | d | D | B | r (最小) | 最小 | 最大 | 最大 | 最大 | (参考) | | P684 | 4 | 9 | 2.5 | 0.1 | 4.8 | / | 8.2 | 0.1 | 0.0001 | | P694 | 11 | 4 | 0.15 | 5.2 | / | 9.8 | 0.15 | 0.0003 | | P604 | 12 | 4 | 0.2 | 5.6 | / | 10.4 | 0.2 | 0.0004 | | P624 | 13 | 5 | 0.2 | 5.6 | / | 11.4 | 0.2 | 0.0006 | | P634 | 16 | 5 | 0.3 | 6 | / | 14 | 0.3 | 0.0010 | | P685 | 5 | 11 | 3 | 0.15 | 6.2 | / | 9.8 | 0.15 | 0.0002 | | P695 | 13 | 4 | 0.2 | 6.6 | / | 11.4 | 0.2 | 0.0005 | | P605 | 14 | 5 | 0.2 | 6.6 | / | 12.4 | 0.2 | 0.0007 | | P625 | 16 | 5 | 0.3 | 7 | / | 14 | 0.3 | 0.0010 | | P635 | 19 | 6 | 0.3 | 7 | / | 17 | 0.3 | 0.0016 | | P686 | 6 | 13 | 3.5 | 0.15 | 7.2 | / | 11.8 | 0.15 | 0.0004 | | P696 | 15 | 5 | 0.2 | 7.6 | / | 13.4 | 0.2 | 0.0007 | | P606 | 17 | 6 | 0.3 | 8 | / | 15 | 0.3 | 0.0011 | | P626 | 19 | 6 | 0.3 | 8 | / | 17 | 0.3 | 0.0016 | | P636 | 22 | 7 | 0.3 | 8 | / | 20 | 0.3 | 0.0027 | | P687 | 7 | 14 | 3.5 | 0.15 | 8.2 | / | 12.8 | 0.15 | 0.0004 | | P697 | 17 | 5 | 0.3 | 9 | / | 15 | 0.3 | 0.0010 | | P607 | 19 | 6 | 0.3 | 9 | / | 17 | 0.3 | 0.0015 | | P627 | 22 | 7 | 0.3 | 9 | / | 20 | 0.3 | 0.0024 | | P637 | 26 | 9 | 0.3 | 9 | / | 24 | 0.3 | 0.0046 | | P688 | 8 | 16 | 4 | 0.2 | 9.6 | / | 14.4 | 0.2 | 0.0006 | | P698 | 19 | 6 | 0.3 | 10 | / | 17 | 0.3 | 0.0014 | | P608 | 22 | 7 | 0.3 | 10 | / | 20 | 0.3 | 0.0023 | | P628 | 24 | 8 | 0.3 | 10 | / | 22 | 0.3 | 0.0033 | | P638 | 28 | 9 | 0.3 | 10 | / | 26 | 0.3 | 0.0054 | | P689 | 9 | 17 | 4 | 0.2 | 10.6 | / | 15.4 | 0.2 | 0.0007 | | P699 | 20 | 6 | 0.3 | 11 | / | 18 | 0.3 | 0.0016 | | P609 | 24 | 7 | 0.3 | 11 | / | 22 | 0.3 | 0.0028 | | P629 | 26 | 8 | 0.3 | 11 | / | 24 | 0.3 | 0.0038 | | P639 | 30 | 10 | 0.6 | 13 | / | 26 | 0.6 | 0.007 | | P6800 | 10 | 19 | 5 | 0.3 | 12 | 12 | 17 | 0.3 | 0.0010 | | P6900 | 22 | 6 | 0.3 | 12 | 12.5 | 20 | 0.3 | 0.0017 | | P6000 | 26 | 8 | 0.3 | 12 | 13 | 24 | 0.3 | 0.0035 | | P6200 | 30 | 9 | 0.6 | 14 | 16 | 26 | 0.6 | 0.006 | | P6300 | 35 | 11 | 0.6 | 14 | 16.5 | 31 | 0.6 | 0.010 | | P6801 | 12 | 21 | 5 | 0.3 | 14 | 14 | 19 | 0.3 | 0.0012 | | P6901 | 24 | 6 | 0.3 | 14 | 14.5 | 22 | 0.3 | 0.0019 | | P16001 | 28 | 7 | 0.3 | 14 | / | 26 | 0.3 | 0.004 | | P6001 | 28 | 8 | 0.3 | 14 | 15.5 | 26 | 0.3 | 0.004 | | P6201 | 32 | 10 | 0.6 | 16 | 17 | 28 | 0.6 | 0.007 | | P6301 | 37 | 12 | 1 | 17 | 18 | 32 | 1 | 0.012 | | P6802 | 15 | 24 | 5 | 0.3 | 17 | 17 | 22 | 0.3 | 0.0013 | | P6902 | 28 | 7 | 0.3 | 17 | 17 | 26 | 0.3 | 0.003 | | P16002 | 32 | 8 | 0.3 | 17 | / | 30 | 0.3 | 0.005 | | P6002 | 32 | 9 | 0.3 | 17 | 19 | 30 | 0.3 | 0.006 | | P6202 | 35 | 11 | 0.6 | 19 | 20.5 | 31 | 0.3 | 0.009 | | P6302 | 42 | 13 | 1 | 20 | 22.5 | 37 | 1 | 0.016 | | P6803 | 17 | 26 | 5 | 0.3 | 19 | 19 | 24 | 0.3 | 0.0013 | | P6903 | 30 | 7 | 0.3 | 19 | 19.5 | 28 | 0.3 | 0.0033 | | P16003 | 35 | 8 | 0.3 | 19 | / | 33 | 0.3 | 0.006 | | P6003 | 35 | 10 | 0.3 | 19 | 21.5 | 33 | 0.3 | 0.008 | | P6203 | 40 | 12 | 0.6 | 21 | 23.5 | 36 | 0.6 | 0.013 | | P6303 | 47 | 14 | 1 | 22 | 25.5 | 42 | 1 | 0.022 | | P6403 | 62 | 17 | 1.1 | 23.5 | / | 55.5 | 1 | 0.052 | | P6804 | 20 | 32 | 7 | 0.3 | 22 | 22.5 | 30 | 0.3 | 0.003 | | P6904 | 37 | 9 | 0.3 | 22 | 24 | 35 | 0.3 | 0.007 | | P16004 | 42 | 8 | 0.3 | 22 | / | 40 | 0.3 | 0.009 | | P6004 | 42 | 12 | 0.6 | 24 | 25.5 | 38 | 0.6 | 0.013 | | P6204 | 47 | 14 | 1 | 25 | 26.5 | 42 | 1 | 0.021 | | P6304 | 52 | 15 | 1.1 | 26.5 | 28 | 45.5 | 1 | 0.028 | | P6404 | 72 | 19 | 1.1 | 26.5 | / | 65.5 | 1 | 0.08 | | P6805 | 25 | 37 | 7 | 0.3 | 27 | 27 | 35 | 0.3 | 0.00 | | P6905 | 42 | 9 | 0.3 | 27 | 28.5 | 40 | 0.3 | 0.01 | | P16005 | 47 | 8 | 0.3 | 27 | / | 45 | 0.3 | 0.011 | | P6005 | 47 | 12 | 0.6 | 29 | 30 | 43 | 0.6 | 0.015 | | P6205 | 52 | 15 | 1 | 30 | 32 | 47 | 1 | 0.025 | | P6305 | 62 | 17 | 1.1 | 31.5 | 36 | 55.5 | 1 | 0.045 | | P6405 | 80 | 21 | 1.5 | 33 | / | 72 | 1.5 | 0.102 | | P6806 | 30 | 42 | 7 | 0.3 | 32 | 32 | 50 | 1 | 0.005 | | P6906 | 47 | 9 | 0.3 | 32 | 34 | 57 | 1 | 0.010 | | P16006 | 55 | 9 | 0.3 | 32 | 42.5 | 65.5 | 1 | 0.017 | | P6006 | 55 | 13 | 1 | 35 | 36.5 | 53 | 1 | 0.022 | | P6206 | 62 | 16 | 1 | 35 | 38.5 | 60 | 1 | 0.038 | | P6306 | 72 | 19 | 1.1 | 36.5 | 42.5 | 68.5 | 1 | 0.066 | | P6406 | 90 | 23 | 1.5 | 54 | / | 82 | 2 | 0.14 | | P6807 | 35 | 47 | 7 | 0.3 | 37 | 37 | 45 | 0.3 | 0.005 | | P6907 | 55 | 10 | 0.6 | 39 | 39 | 51 | 0.6 | 0.014 | | P16007 | 62 | 9 | 0.3 | 37 | / | 60 | 0.3 | 0.021 | | P6007 | 62 | 14 | 1 | 40 | 41.5 | 57 | 1 | 0.029 | | P6207 | 72 | 17 | 1.1 | 41.5 | 44.5 | 65.5 | 1 | 0.055 | | P6307 | 80 | 21 | 1.5 | 43 | 47 | 72 | 1.5 | 0.089 | | P6407 | 100 | 25 | 1.5 | 43 | / | 92 | 1.5 | 0.18 | | P6808 | 40 | 52 | 7 | 0.3 | 42 | 42 | 50 | 0.3 | 0.006 | | P6908 | 62 | 12 | 0.6 | 44 | 46 | 58 | 0.6 | 0.022 | | P16008 | 68 | 9 | 0.3 | 42 | / | 66 | 0.3 | 0.025 | | P6008 | 68 | 15 | 1 | 45 | 47.5 | 63 | 1 | 0.037 | | P6208 | 80 | 18 | 1.1 | 46.5 | 50.5 | 73.5 | 1 | 0.070 | | P6308 | 90 | 23 | 1.5 | 48 | 53 | 80 | 1.5 | 0.12 | | P6408 | 110 | 27 | 2 | 49 | / | 101 | 2 | 0.24 | | P6809 | 45 | 58 | 7 | 0.3 | 47 | 47.5 | 56 | 0.3 | 0.007 | | P6909 | 68 | 12 | 0.6 | 49 | 50 | 64 | 0.6 | 0.024 | | P16009 | 75 | 10 | 0.6 | 49 | / | 71 | 0.6 | 0.032 | | P6009 | 75 | 16 | 1 | 50 | 53.5 | 70 | 1 | 0.046 | | P6209 | 85 | 19 | 1.1 | 51.5 | 55.5 | 78.5 | 1 | 0.081 | | P6309 | 100 | 25 | 1.5 | 53 | 61.5 | 92 | 1.5 | 0.16 | | P6409 | 120 | 29 | 2 | 54 | / | 111 | 2 | 0.29 | | P6810 | 50 | 65 | 7 | 0.3 | 52 | 52.5 | 63 | 0.3 | 0.010 | | P6910 | 72 | 12 | 0.6 | 54 | 55 | 68 | 0.6 | 0.026 | | P16010 | 80 | 10 | 0.6 | 54 | / | 76 | 0.6 | 0.034 | | P6010 | 80 | 16 | 1 | 55 | 58.5 | 75 | 1 | 0.050 | | P6210 | 90 | 20 | 1.1 | 56.5 | 60 | 83.2 | 1 | 0.088 | | P6310 | 110 | 27 | 2 | 59 | 68 | 101 | 2 | 0.20 | | P6410 | 130 | 31 | 2.1 | 61 | / | 119 | 2 | 0.36 | | P6811 | 55 | 72 | 9 | 0.3 | 57 | 59 | 70 | 0.3 | 0.016 | | P6911 | 80 | 13 | 1 | 60 | 61.5 | 75 | 1 | 0.036 | | P16011 | 90 | 11 | 0.6 | 59 | / | 86 | 0.6 | 0.049 | | P6011 | 90 | 18 | 1.1 | 61.5 | 64 | 83.5 | 1 | 0.073 | | P6211 | 100 | 21 | 1.5 | 63 | 66.5 | 92 | 1.5 | 0.12 | | P6311 | 120 | 29 | 2 | 64 | 72.5 | 111 | 2 | 0.26 | | P6411 | 140 | 33 | 2.1 | 66 | / | 129 | 2 | 0.44 | | P6812 | 60 | 78 | 10 | 0.3 | 62 | 64 | 76 | 0.3 | 0.020 | | P6912 | 85 | 13 | 1 | 65 | 66 | 80 | 1 | 0.037 | | P16012 | 95 | 11 | 0.6 | 64 | / | 91 | 0.6 | 0.054 | | P6012 | 95 | 18 | 1.1 | 66.5 | 69 | 88.5 | 1 | 0.079 | | P6212 | 110 | 22 | 1.5 | 68 | 74.5 | 102 | 1.5 | 0.15 | | P6312 | 130 | 31 | 2.1 | 71 | 79 | 119 | 2 | 0.33 | | P6412 | 150 | 35 | 2.1 | 71 | | 139 | 2 | 0.53 | | P6813 | 65 | 85 | 10 | 0.6 | 69 | 69 | 81 | 0.6 | 0.025 | | P6913 | 90 | 13 | 1 | 70 | 71.5 | 85 | 1 | 0.04 | | P16013 | 100 | 11 | 0.6 | 69 | / | 96 | 0.6 | 0.06 | | P6013 | 100 | 18 | 1.1 | 71.5 | 73 | 93.5 | 1 | 0.08 | | P6213 | 120 | 23 | 1.5 | 73 | 80 | 112 | 1.5 | 0.19 | | P6313 | 140 | 33 | 2.1 | 76 | 85.5 | 129 | 2 | 0.41 | | P6814 | 70 | 90 | 10 | 0.6 | 74 | 74.5 | 86 | 0.6 | 0.03 | | P6914 | 100 | 16 | 1 | 75 | 77.5 | 95 | 1 | 0.07 | | P16014 | 110 | 13 | 0.6 | 74 | / | 106 | 0.6 | 0.08 | | P6014 | 110 | 20 | 1.1 | 76.5 | 80.5 | 103.5 | 1 | 0.12 | | P6214 | 125 | 24 | 1.5 | 78 | 84 | 117 | 1.5 | 0.21 | | P6314 | 150 | 35 | 2.1 | 81 | 92 | 139 | 2 | 0.49 | | P6815 | 75 | 95 | 10 | 0.6 | 79 | 79.5 | 91 | 0.6 | 0.029 | | P6915 | 105 | 16 | 1 | 80 | 82 | 100 | 1 | 0.070 | | P16015 | 115 | 13 | 0.6 | 79 | / | 111 | 0.6 | 0.089 | | P6015 | 115 | 20 | 1.1 | 81.5 | 85.5 | 108.5 | 1 | 0.12 | | P6215 | 130 | 25 | 1.5 | 83 | 90 | 122 | 1.5 | 0.23 | | P6816 | 80 | 100 | 10 | 0.6 | 84 | 84.5 | 96 | 0.6 | 0.03 | | P6916 | 110 | 16 | 1 | 85 | 87.5 | 105 | 1 | 0.075 | | P16016 | 125 | 14 | 0.6 | 84 | / | 121 | 0.6 | 0.12 | | P6016 | 125 | 22 | 1.1 | 86.5 | 91 | 118.5 | 1 | 0.17 | | P6216 | 140 | 26 | 2 | 89 | 95.5 | 131 | 2 | 0.27 | | P6817 | 85 | 110 | 13 | 1 | 90 | 90.5 | 105 | 1 | 0.051 | | P6917 | 120 | 18 | 1.1 | 91.5 | 94.5 | 113.5 | 1 | 0.11 | | P16017 | 130 | 14 | 0.6 | 89 | / | 126 | 0.6 | 0.13 | | P6017 | 130 | 22 | 1.1 | 91.5 | 96 | 123.5 | 1 | 0.18 | | P6217 | 150 | 28 | 2 | 94 | 102 | 141 | 2 | 0.34 | | P6818 | 90 | 115 | 13 | 1 | 95 | 95.5 | 110 | 1 | 0.05 | | P6918 | 125 | 18 | 1.1 | 96.5 | 98.5 | 118.5 | 1 | 0.11 | | P16018 | 140 | 16 | 1 | 95 | / | 135 | 1 | 0.17 | | P6018 | 140 | 24 | 1.5 | 98 | 103 | 132 | 1.5 | 0.23 | | P6819 | 95 | 120 | 13 | 1 | 100 | 101.5 | 115 | 1 | 0.057 | | P6919 | 130 | 18 | 1.1 | 101.5 | 103.5 | 123.5 | 1 | 0.12 | | P16019 | 145 | 16 | 1 | 100 | / | 140 | 1 | 0.17 | | P6019 | 145 | 24 | 1.5 | 103 | 108.5 | 137 | 1.5 | 0.24 | | P6820 | 100 | 125 | 13 | 1 | 105 | 105.5 | 120 | 1 | 0.06 | | P6920 | 140 | 20 | 1.1 | 106.5 | 111 | 133.5 | 1 | 0.16 | | P16020 | 150 | 16 | 1 | 105 | / | 145 | 1 | 0.18 | | P6020 | 150 | 24 | 1.5 | 108 | 112.5 | 142 | 1.5 | 0.25 | | P6821 | 105 | 130 | 13 | 1 | 110 | 110.5 | 125 | 1 | 0.06 | | P6921 | 145 | 20 | 1.1 | 111.5 | 116 | 138.5 | 1 | 0.16 | | P6822 | 110 | 140 | 16 | 1 | 115 | 117 | 135 | 1 | 0.10 | | P6922 | 150 | 20 | 1.1 | 116.5 | 121 | 143.5 | 1 | 0.17 | | P6824 | 120 | 150 | 16 | 1 | 125 | 127 | 145 | 1 | 0.10 |
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