Anti-vibration rubber
It has a simple structure and is easy to install.
Since one side is embedded with a nut, the mounting bolt space can be reduced.
Depending on the mounting direction, it can be used not only in the compression direction, shear direction, but also in the tilt direction, and has a wide range of applications.
It is possible to change the hardness and material of the rubber if the quantity is large enough.
| Part number | Standard dimensions mm | Support load in Z direction N {kgf} | Allowable load N {kgf} | Z direction spring constant Kz N/mm {kgf/cm} | Stiffness ratio Kx/Kz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D₁ | D2 | H. | t | d | l | s | b | Z direction | X direction | ||||
| RA-8 | 8 | 8 | 11 | 1 | M3 | 10 | 9 | 3.3 | ~ 21 { 2.1 } | 36 { 3.7 } | 7 { 0.7 } | 17 { 17 } | 0.17 |
| RA-10 | 10 | 10 | 13 | 1 | M4 | 10 | 9 | 4 | ~ 44 { 4.5 } | 78 { 8 } | 9.8 {1} | 27 { 28 } | 0.16 |
| RA-12 | 12 | 10 | 16 | 2 | M5 | 12 | 11 | 4.5 | ~ 78 { 8 } | 110 { 11 } | 25 { 2.5 } | 62 { 63 } | 0.20 |
| RA-15 | 15 | 12 | 15 | 2 | M5 | 15 | 12 | 4.5 | ~ 130 { 13 } | 160 { 16 } | 34 { 3.5 } | 110 { 110 } | 0.24 |
| RA-20 | 20 | 15 | 15 | 2 | M6 | 15 | 13 | 5 | ~ 160 { 16 } | 280 { 29 } | 69 { 7 } | 180 { 180 } | 0.18 |
| RA-20-20H | 20 | 15 | 20 | 2 | M6 | 15 | 13 | 5 | ~ 98 { 10 } | 180 { 18 } | 49 {5} | 88 { 90 } | 0.22 |
| RA-25 | 25 | 20 | 18 | 2.3 | M6 | 18 | 16 | 6 | ~ 280 { 29 } | 580 { 59 } | 98 { 10 } | 220 { 220 } | 0.19 |
| RA-25-27H | 25 | 20 | 27 | 2.3 | M6 | 18 | 16 | 6 | ~ 160 { 16 } | 310 { 32 } | 59 {6} | 110 { 110 } | 0.22 |
| RA-30 | 30 | 25 | 18 | 2.3 | M8 | 24 | 20 | 7.2 | ~ 830 { 85 } | 1700 { 170 } | 250 { 25 } | 610 { 620 } | 0.15 |
| RA-30-26H | 30 | 25 | 26 | 2.3 | M8 | 24 | 20 | 7.2 | ~ 370 { 38 } | 760 { 77 } | 150 { 15 } | 180 { 180 } | 0.22 |
| RA-35 | 35 | 30 | 26 | 2.3 | M8 | 24 | 20 | 7.2 | ~ 550 { 56 } | 1100 { 110 } | 260 { 27 } | 250 { 260 } | 0.24 |
| RA-35-35H | 35 | 30 | 35 | 2.3 | M8 | 24 | 20 | 7.2 | ~ 450 { 46 } | 890 { 91 } | 210 { 21 } | 150 { 150 } | 0.23 |
| RA-40 | 40 | 34 | 25 | 2.3 | M8 | 30 | 25 | 7.2 | ~ 700 { 71 } | 1420 { 145 } | 320 { 33 } | 340 { 350 } | 0.23 |
| RA-40-33H | 40 | 34 | 33 | 2.3 | M8 | 30 | 25 | 7.2 | ~ 560 { 57 } | 1100 { 114 } | 260 { 27 } | 200 { 200 } | 0.24 |
| RA-45 | 45 | 38 | 34 | 3.2 | M8 | 29 | 25 | 8.1 | ~ 830 { 85 } | 1700 { 170 } | 290 { 30 } | 300 { 310 } | 0.24 |
| RA-45-45H | 45 | 38 | 45 | 3.2 | M8 | 29 | 25 | 8.1 | ~ 690 { 70 } | 1400 { 140 } | 250 { 25 } | 190 { 190 } | 0.20 |
| RA-50 | 50 | 42 | 27 | 3.2 | M10 | 30 | 25 | 9.2 | ~ 1370 { 140 } | 2700 { 280 } | 470 { 48 } | 670 { 680 } | 0.17 |
| RA-50-40H | 50 | 42 | 40 | 3.2 | M10 | 30 | 25 | 9.2 | ~ 880 { 90 } | 1800 { 180 } | 390 { 40 } | 270 { 280 } | 0.22 |
| RA-55 | 55 | 47 | 40 | 3.2 | M10 | 35 | 30 | 9.2 | ~ 1300 { 130 } | 2500 { 260 } | 440 { 45 } | 340 { 350 } | 0.23 |
| RA-55-54H | 55 | 47 | 54 | 3.2 | M10 | 35 | 30 | 9.2 | ~ 1100 { 110 } | 2300 { 230 } | 390 { 40 } | 240 { 240 } | 0.21 |
| RA-60 | 60 | 52 | 30 | 3.2 | M12 | 35 | 35 | 11.2 | ~ 2060 { 210 } | 4200 { 425 } | 780 { 80 } | 883 { 900 } | 0.19 |
| RA-60-34H | 60 | 52 | 34 | 3.2 | M12 | 35 | 35 | 11.2 | ~ 1670 { 170 } | 3300 { 340 } | 690 { 70 } | 600 { 610 } | 0.21 |
| RA-60-58H | 60 | 52 | 58 | 3.2 | M12 | 35 | 35 | 11.2 | ~ 1300 { 130 } | 2500 { 260 } | 540 { 55 } | 250 { 250 } | 0.21 |
| RA-65 | 65 | 56 | 34 | 3.2 | M12 | 35 | 35 | 11.2 | ~ 2300 { 230 } | 4400 { 450 } | 640 { 65 } | 860 { 880 } | 0.20 |
| RA-65-50H | 65 | 56 | 50 | 3.2 | M12 | 35 | 35 | 11.2 | ~ 1800 { 180 } | 3500 { 360 } | 540 { 55 } | 410 { 420 } | 0.21 |
| RA-75 | 75 | 65 | 42 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 2900 { 300 } | 5900 { 600 } | 880 { 90 } | 960 { 980 } | 0.21 |
| RA-75-63H | 75 | 65 | 63 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 2300 { 230 } | 4500 { 460 } | 740 { 75 } | 450 { 460 } | 0.22 |
| RA-80 | 80 | 70 | 40 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 3240 { 330 } | 6500 { 660 } | 1200 { 120 } | 1040 { 1060 } | 0.18 |
| RA-80-55H | 80 | 70 | 55 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 2600 { 270 } | 5300 { 540 } | 1200 { 125 } | 580 { 590 } | 0.23 |
| RA-90 | 90 | 80 | 50 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 3900 { 400 } | 7800 { 800 } | 1300 { 130 } | 1030 { 1050 } | 0.20 |
| RA-90-76H | 90 | 80 | 76 | 4.5 | M12 | 45 | 45 | 12.5 | ~ 2900 { 300 } | 5900 { 600 } | 1200 { 120 } | 510 { 520 } | 0.22 |
| RA-100 | 100 | 90 | 50 | 4.5 | M16 | 55 | 55 | 16 | ~ 5900 { 600 } | 11800 { 1200 } | 2400 { 240 } | 1440 { 1470 } | 0.20 |
| RA-100-70H | 100 | 90 | 70 | 4.5 | M16 | 55 | 55 | 16 | ~ 3580 { 365 } | 7200 { 730 } | 1720 { 175 } | 800 { 820 } | 0.21 |
| RA-120 | 120 | 110 | 60 | 8 | M16 | 51 | 51 | 19.5 | ~ 7940 { 810 } | 16000 { 1630 } | 2840 { 290 } | 1810 { 1850 } | 0.18 |
| RA-150 | 150 | 140 | 62 | 8 | M20 | 57 | 57 | 22.5 | ~ 12700 { 1300 } | 25500 { 2600 } | 5100 { 520 } | 4060 { 4140 } | 0.16 |
*One hexagonal nut and one spring washer are included.
*Rubber material shall be natural rubber compound hardness 60. However, for RA-8 and RA-10, natural rubber compound hardness is 45.
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・Blower
・Engine
・Generator
・Electric motor
・Compressor
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