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Economy series Product Overview Anti-Vibration Rubber Mounts Both Ends Threaded Type
Anti-Vibration Rubber Mounts

QExample of Customer Use Body M Material h Hardness S Surface Treatment
Metal Fittings
· Suitable for the prevention and weakening of vibration phenomena generated by vibrating equipment. For
example, anti-vibration rubber mount is often used to prevent the impact of external vibration factors on Rubber Steel Shore A60 Zinc Plating
precision equipment

Compression Shear Inclined
Support Support Support

H

2-M
D

QSelection Method
L
22
QSTEP 1 Part Number Z Direction X Direction Rigidity
Ratio
Determine spring constant Connecting
· Assuming that the equipment is now vibrating in Thread L O.D. Height Allowable Load Standard Load Spring Allowable Load
D
H
the vertical direction under force, The formula for 1Type 2No. M Constant kx/kz Trims / Polyurethane Sheets Anti-Vibration Rubber Mounts /
N/mm
the transmissibility Tr is as follows: N {kgf} N {kgf} {kgf/cm} N {kgf}
U: Vibration ratio
U= f f: Vibration number of the machine itself (Hz) 0808-6 3 6 8 8 92 9.2 28-88 2.8-8.8 55 18 1.8 0.2
fn fn: The number of inherent vibrations during 1508-10 15 120 12 36-116 3.6-11.6 72 24 2.4
machine damping (Hz) 4 10
1615-10 16 15 258 25.8 40-246 4-24.6 82 62 6.2
F: Exciting force transmitted by 2008-18 8 588 58.8 180-560 18-56 350 141 14.1 0.24 Rubber Mounts Anti-Vibration
F 1 the machine to the base (N)
Tr= = Example 2015-18 15 447 44.7 70-426 7-42.6 142 72 7.2 0.16
FO 1-U 2 Fo: Exciting force of the machine 20
itself (N) 2020-18 20 340 34 40-324 4-32.4 81 61 6.1 0.18 P.22-004
· Tr is the transmissibility, and the vibration damping effect is 2030-18 6 18 30 233 23.3 20-222 2-22.2 37 37 3.7 0.16
available only when the transmissibility is < 1, that is U > √2 · The weight m of the vibration-damping 2515-18 15 594 59.4 190-566 19-56.6 283 131 13.1 0.22
* When U=2~4, that is, when the transmissibility is 7%~33%, machinery required by the customer is 100kg, Trims
the vibration damping effect is the best the number of vibrations f occurring in the 2520-18 25 20 760 76 90-724 9-72.4 181 152 15.2 0.2
· The Anti-Vibration Rubber Mounts can be selected machinery is 16Hz, and fn is 8Hz C-VV 2530-18 30 510 51 40-486 4-48.6 81 82 8.2 0.16 P.22-012
by calculating the appropriate spring constant Ks Calculate according to the formula 3015-20 15 1175 117.5 190-1119 19-111.9 373 282 28.2 0.24
according to the following formula 3020-20 20 30 20 1000 100 140-952 14-95.2 238 200 20 0.2
(2π×16) ×100 3025-20 25 725 72.5 70-690 7-69 138 123 12.3 0.17
2
m: Machine mass (kg) ks= =180(N/mm) Polyurethane Sheets Urethane Washers / Bumpers /
2
(2πf) m 2 ×1.4×1000 3030-20 8 30 680 68 60-648 6-64.8 108 109 10.9 0.16
2
ks= α: When the Shore hardness of
U ×α×1000 natural rubber is 60, The spring constant of 180N/mm is obtained. 4020-23 20 2020 202 240-1924 24-192.4 481 404 40.4 0.2
2
α is 1.4 4025-23 23 25 1774 177.4 338-1690 33.8-169 338 319 31.9 P.22-013
* The above formula requires confirmation of the weight m of the 4030-23 40 30 1499 149.9 120-1428 12-142.8 238 270 27 0.18
equipment above the anti-vibration rubber mount, the vibration
number f of the machine itself and the desired vibration number 4040-25 40 1260 126 80-1200 8-120 150 202 20.2 0.16
fn (after vibration damping). 5030-25 10 25 30 3150 315 250-3000 25-300 500 567 56.7 0.18
· Depending on how the equipment is mounted, 5050-25 50 50 1420 142 90-1352 9-135.2 169 284 28.4 0.2
QSTEP 2 two external threads are required.
Selected C-VV Series
Select the appropriate installation type Ordering Part Number (1Type · 2No.)
of Anti-Vibration Rubber Mounts Required thread specification M6, Example C-VV2020-18
QSTEP 3 height 20mm
Select the appropriate size of
Anti-Vibration Rubber Mounts
Selected model: C-VV2520-18 How to search Search on MISUMI official website Step 1 Step 2 Select Economy series
Q Model Selection on website 1 C-VV 2 anti vib rubber # MISUMI
By Type Search on MISUMI official website and get your product By Keyword # Only MISUMI Economy series
Anti-Vibration Rubber Mounts 22-006