一．概述；
该产品以优质低碳钢为基体，中间烧结球形青铜层，表面轧制改性聚四氟乙烯（PTFE）和铅的混合物。它具有较好的自润滑、耐磨损、摩擦系数低、走合性能好低噪音等性能，产品广泛应用于各种机械的滑动部位，如纺织机、印刷机、液压搬运车、烟草机、健身器、农业机械等。
二．性能参数；
最大静载荷:250N/mm2
最大动载荷:140N/mm2
干摩擦最高线速度:2.5m/s
油润滑最高线速度:5m/s
干摩擦系数:0.04-0.20
油润滑摩擦系数:0.02-0.07
使用温度:-195℃~+280℃
导热系数:42W/m.K
三．尺寸举例；
| 型号 | 内径d(F7) | 外径D(m6) | 高度h |
| SF1-0303 | 3 | 5 | 3 |
| SF1-0505 | 5 | 7 | 5 |
| SF1-0506 | 5 | 7 | 6 |
| SF1-0507 | 5 | 7 | 7 |
| SF1-0508 | 5 | 7 | 8 |
| SF1-0510 | 5 | 7 | 10 |
| SF1-0604 | 6 | 8 | 4 |
| SF1-0605 | 6 | 8 | 5 |
| SF1-0606 | 6 | 8 | 6 |
| SF1-0608 | 6 | 8 | 8 |
| SF1-0610 | 6 | 8 | 10 |
| SF1-0615 | 6 | 8 | 15 |
| SF1-0705 | 7 | 9 | 5 |
| SF1-0706 | 7 | 9 | 6 |
| SF1-0708 | 7 | 9 | 8 |
| SF1-0710 | 7 | 9 | 10 |
| SF1-0715 | 7 | 9 | 15 |
| SF1-0805 | 8 | 10 | 5 |
| SF1-0806 | 8 | 10 | 6 |
| SF1-0808 | 8 | 10 | 8 |
| SF1-0810 | 8 | 10 | 10 |
| SF1-0812 | 8 | 10 | 12 |
| SF1-0815 | 8 | 10 | 15 |
| SF1-1006 | 10 | 12 | 6 |
| SF1-1008 | 10 | 12 | 8 |
| SF1-1010 | 10 | 12 | 10 |
| SF1-1012 | 10 | 12 | 12 |
| SF1-1015 | 10 | 12 | 15 |
| SF1-1020 | 10 | 12 | 20 |
| SF1-1108 | 11 | 13 | 8 |
| SF1-1110 | 11 | 13 | 10 |
| SF1-1112 | 11 | 13 | 12 |
| SF1-1208 | 12 | 14 | 8 |
| SF1-1210 | 12 | 14 | 10 |
| SF1-1212 | 12 | 14 | 12 |
| SF1-1215 | 12 | 14 | 15 |
| SF1-1220 | 12 | 14 | 20 |
| SF1-1222 | 12 | 14 | 22 |
| SF1-1225 | 12 | 14 | 25 |
| SF1-1226 | 12 | 14 | 26 |
| SF1-1406 | 14 | 16 | 6 |
| SF1-1410 | 14 | 16 | 10 |
| SF1-1411 | 14 | 16 | 11 |
| SF1-1412 | 14 | 16 | 12 |
| SF1-1415 | 14 | 16 | 15 |
| SF1-1420 | 14 | 16 | 20 |
| SF1-1425 | 14 | 16 | 25 |
| SF1-1510 | 15 | 17 | 10 |
| SF1-1512 | 15 | 17 | 12 |
| SF1-1515 | 15 | 17 | 15 |
| SF1-1518 | 15 | 17 | 18 |
| SF1-1520 | 15 | 17 | 20 |
| SF1-1525 | 15 | 17 | 25 |
| SF1-1610 | 16 | 18 | 10 |
| SF1-1612 | 16 | 18 | 12 |
| SF1-1615 | 16 | 18 | 15 |
| SF1-1618 | 16 | 18 | 18 |
| SF1-1620 | 16 | 18 | 20 |
| SF1-1625 | 16 | 18 | 25 |
| SF1-1820 | 18 | 20 | 20 |
| SF1-2010 | 20 | 23 | 10 |
| SF1-2012 | 20 | 23 | 12 |
| SF1-2015 | 20 | 23 | 15 |
| SF1-2020 | 20 | 23 | 20 |
| SF1-2025 | 20 | 23 | 25 |
| SF1-2030 | 20 | 23 | 30 |
| SF1-2035 | 20 | 23 | 35 |
| SF1-2040 | 20 | 23 | 40 |
| SF1-2050 | 20 | 23 | 50 |
| SF1-2210 | 22 | 25 | 10 |
| SF1-2211 | 22 | 25 | 11 |
| SF1-2212 | 22 | 25 | 12 |
| SF1-2215 | 22 | 25 | 15 |
| SF1-2220 | 22 | 25 | 20 |
| SF1-2225 | 22 | 25 | 25 |
| SF1-2230 | 22 | 25 | 30 |
| SF1-2235 | 22 | 25 | 35 |
| SF1-2238 | 22 | 25 | 38 |
| SF1-2240 | 22 | 25 | 40 |
| SF1-2245 | 22 | 25 | 45 |
| SF1-2250 | 22 | 25 | 50 |
| SF1-2510 | 25 | 28 | 10 |
| SF1-2515 | 25 | 28 | 15 |
| SF1-2520 | 25 | 28 | 20 |
| SF1-2522 | 25 | 28 | 22 |
| SF1-2525 | 25 | 28 | 25 |
| SF1-2530 | 25 | 28 | 30 |
| SF1-2535 | 25 | 28 | 35 |
| SF1-2540 | 25 | 28 | 40 |
| SF1-2550 | 25 | 28 | 50 |
| SF1-2615 | 26 | 30 | 15 |
| SF1-2620 | 26 | 30 | 20 |
| SF1-2625 | 26 | 30 | 25 |
| SF1-2630 | 26 | 30 | 30 |
| SF1-2635 | 26 | 30 | 35 |
| SF1-2640 | 26 | 30 | 40 |
| SF1-2650 | 26 | 30 | 50 |
| SF1-2820 | 28 | 32 | 20 |
| SF1-2825 | 28 | 32 | 25 |
| SF1-2830 | 28 | 32 | 30 |
| SF1-3010 | 30 | 34 | 10 |
| SF1-3015 | 30 | 34 | 15 |
| SF1-3020 | 30 | 34 | 20 |
| SF1-3025 | 30 | 34 | 25 |
| SF1-3030 | 30 | 34 | 30 |
| SF1-3035 | 30 | 34 | 35 |
| SF1-3040 | 30 | 34 | 40 |
| SF1-3045 | 30 | 34 | 45 |
| SF1-3050 | 30 | 34 | 50 |
| SF1-3510 | 35 | 39 | 10 |
| SF1-3512 | 35 | 39 | 12 |
| SF1-3515 | 35 | 39 | 15 |
| SF1-3520 | 35 | 39 | 20 |
| SF1-3525 | 35 | 39 | 25 |
| SF1-3530 | 35 | 39 | 30 |
| SF1-3535 | 35 | 39 | 35 |
| SF1-3540 | 35 | 39 | 40 |
| SF1-3550 | 35 | 39 | 50 |
| SF1-3620 | 36 | 40 | 20 |
| SF1-3815 | 38 | 42 | 15 |
| SF1-3820 | 38 | 42 | 20 |
| SF1-3825 | 38 | 42 | 25 |
| SF1-3830 | 38 | 42 | 30 |
| SF1-3835 | 38 | 42 | 35 |
| SF1-3840 | 38 | 42 | 40 |
| SF1-3845 | 38 | 42 | 45 |
| SF1-3850 | 38 | 42 | 50 |
| SF1-3855 | 38 | 42 | 55 |
| SF1-3860 | 38 | 42 | 60 |
| SF1-4020 | 40 | 44 | 20 |
| SF1-4025 | 40 | 44 | 25 |
| SF1-4030 | 40 | 44 | 30 |
| SF1-4035 | 40 | 44 | 35 |
| SF1-4040 | 40 | 44 | 40 |
| SF1-4045 | 40 | 44 | 45 |
| SF1-4050 | 40 | 44 | 50 |
| SF1-5020 | 50 | 55 | 20 |
| SF1-5025 | 50 | 55 | 25 |
| SF1-5030 | 50 | 55 | 30 |
| SF1-5035 | 50 | 55 | 35 |
| SF1-5040 | 50 | 55 | 40 |
| SF1-5050 | 50 | 55 | 50 |
| SF1-5060 | 50 | 55 | 60 |
| SF1-5530 | 55 | 60 | 30 |
| SF1-5535 | 55 | 60 | 35 |
| SF1-5540 | 55 | 60 | 40 |
| SF1-5550 | 55 | 60 | 50 |
| SF1-5560 | 55 | 60 | 60 |
| SF1-6030 | 60 | 65 | 30 |
| SF1-6035 | 60 | 65 | 35 |
| SF1-6040 | 60 | 65 | 40 |
| SF1-6050 | 60 | 65 | 50 |
| SF1-6060 | 60 | 65 | 60 |
| SF1-6070 | 60 | 65 | 70 |
| SF1-6080 | 60 | 65 | 80 |
| SF1-6090 | 60 | 65 | 90 |
| SF1-6540 | 65 | 70 | 40 |
| SF1-6550 | 65 | 70 | 50 |
| SF1-7030 | 70 | 75 | 30 |
| SF1-7550 | 75 | 80 | 50 |
| SF1-7560 | 75 | 80 | 60 |
| SF1-7570 | 75 | 80 | 70 |
| SF1-7580 | 75 | 80 | 80 |
| SF1-8080 | 80 | 85 | 80 |
| SF1-9050 | 90 | 95 | 50 |
| SF1-9060 | 90 | 95 | 60 |
| SF1-9080 | 90 | 95 | 80 |
| SF1-90100 | 90 | 95 | 100 |
| SF1-10015 | 100 | 105 | 15 |
| SF1-10050 | 100 | 105 | 50 |
| SF1-10060 | 100 | 105 | 60 |
| SF1-10070 | 100 | 105 | 70 |
| SF1-10080 | 100 | 105 | 80 |
| SF1-100100 | 100 | 105 | 100 |