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日本SAKAGAMI阪上油封RGY是非常耐磨的活塞专用密封圈。相对于径向尺寸的横截面尺寸大于SKY的横截面尺寸，从而提高耐用性并改善了密封性能。
| 标准型号 | 密封件的公称尺寸及安装尺寸 (単位：mm） | 耐高压 | ||||
| （RN923） | d*D*H | GA. | GB | D1 | L | （PT111） |
| RGY-40 | 40*30*6.2 | 7 | 8.5 | 39 | 3.5 | TCS-40×30 |
| RGY-45 | 45*35*6.2 | 7 | 8.5 | 44 | 3.5 | TCS-45×35 |
| RGY-50 | 50*40*6.2 | 7 | 8.5 | 49 | 3.5 | TCS-50×40 |
| RGY-55 | 55*45*6.2 | 7 | 8.5 | 54 | 3.5 | TCS-55×45 |
| RGY-60 | 60*50*6.2 | 7 | 8.5 | 59 | 3.5 | TCS-60×50 |
| RGY-63 | 63*53*6.2 | 7 | 8.5 | 62 | 3.5 | TCS-63×53 |
| RGY-65 | 65*55*6.2 | 7 | 8.5 | 64 | 3.5 | TCS-65×55 |
| RGY-70 | 70*60*6.2 | 7 | 8.5 | 69 | 3.5 | TCS-70×60 |
| RGY-70B | 70*57*8.2 | 9 | 11 | 69 | 4 | TCS-70×57 |
| RGY-75 | 75*65*6.2 | 7 | 8.5 | 74 | 4 | TCS-75×65 |
| RGY-75B | 75*62*8.2 | 9 | 11 | 74 | 4 | TCS-75×62 |
| RGY-80 | 80*70*6.2 | 7 | 8.5 | 79 | 4 | TCS-80×70 |
| RGY-80A | 80*71*6.2 | 7 | 8.5 | 79 | 4 | TCS-80×71 |
| RGY-80B | 80*65*9.2 | 10 | 12 | 79 | 4 | TCS-80×65 |
| RGY-90 | 90*80*6.2 | 7 | 8.5 | 89 | 4 | TCS-90×80 |
| RGY-90B | 90*75*9.2 | 10 | 12 | 88 | 4 | TCS-90×75 |
| RGY-100 | 100*85*9.2 | 10 | 12 | 98 | 4 | TCS-100×85 |
| RGY-110 | 110*95*9.2 | 10 | 12 | 108 | 4 | TCS-110×95 |
| RGY-120 | 120*106*8.7 | 9.5 | 11.5 | 118 | 4 | TCS-120×106 |
| RGY-125 | 125*112*8.7 | 9.5 | 11.5 | 123 | 4 | TCS-125×112 |
| RGY-140 | 140*125*9.2 | 10 | 12 | 138 | 4 | TCS-140×125 |
| RGY-145 | 145*130*9.2 | 10 | 12 | 143 | 4 | TCS-145×130 |
| RGY-150 | 150*136*8.7 | 9.5 | 11.5 | 148 | 4 | TCS-150×136 |
| RGY-160 | 160*145*9.2 | 10 | 12 | 158 | 4 | TCS-160×145 |
| RGY-180 | 180*165*9.2 | 10 | 12 | 178 | 4 | TCS-180×165 |
| RGY-200 | 200*180*12.2 | 13 | 15.5 | 198 | 5.5 | TCS-200×180 |
| RGY-224 | 224*204*12.2 | 13 | 15.5 | 222 | 5.5 | TCS-224×204 |
| RGY-250 | 250*230*12.2 | 13 | 15.5 | 248 | 5.5 | TCS-250×230 |