Metric Size,
Vibration Isolation Mounts
Cylindrical Type

GN 351

RoHS Compliant

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Specification
Information

Mount body: Natural rubber (NR), vulcanized, 55 durometer (shore hardness +/-5°)
Cover plate: Steel, zinc plated, blue passivated, molded in
Tapped inserts/threaded studs: Steel, zinc plated, blue passivated, molded in

Type EE - with 2 tapped holes
Type ES - with 1 tapped hole and 1 threaded stud
Type SS - with 2 threaded studs

Shipping

GN 351 vibration isolation mounts, also known as vibration mounts, anti-vibration mounts, vibration bobbins or rubber bumpers, are suitable for the elastic mounting of machine units such as motors, compressors and pumps.
These rubber mounts are simple and economical construction elements. Their resilience and their broad range of different sizes and dimensions allow these mounts to be used in many applications that require vibration isolation.
Versions with 40 or 70 durometer natural rubber material available upon request.
Specials, with certain minimum quantities, also available.
For inch versions see GN 351.1 / 351.2 / 351.3.

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For CAD download instructions, click
HERE

Type EE - With 2 Tapped Holes

Dimensions in:

millimeters
(inches)

Part Number d1 h
d2
Thread
s t Spring Rate ~N/mm Shear Load Spring Rate
N/mm
Max. Load
[N]
Max. Deflection
~mm
Shear Load Max. Deflection
mm
351-8-8-M3-EE-55
Download the CAD
8
(.31)
8
M3 x .5 1
(.04)
3
(.12)
35 2.5 75 2 4
351-10-10-M4-EE-55
Download the CAD
10
(.39)
10 M4 x .7

1.2
(.05)

4
(.16)
36 10 90 2.5 5
351-10-15-M4-EE-55
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15 17 4.8 65 3.75 5
351-15-10-M4-EE-55
Download the CAD
15
(.59)
10
M4 x .7 1.4
(.06)
4
(.16)
80 30 200 2.5 7
351-15-15-M4-EE-55
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15 36 18 135 3.75 7
351-15-20-M4-EE-55
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20 30 6.5 152 5 7
351-20-15-M6-EE-55
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20
(.79)
15
M6 x 1.0 2
(.08)
6
(.24)
95 65 355 3.75 10
351-20-20-M6-EE-55
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20 53 15 267 5 10
351-20-25-M6-EE-55
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25 50 13 315 6.25 10
351-25-20-M6-EE-55
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25
(.98)
20
M6 x 1.0 2
(.08)
6
(.24)
121 40 605 5 12.5
351-25-25-M6-EE-55
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25 85 30 530 6.25 12.5
351-25-30-M6-EE-55
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30 77 22 575 7.5 12.5
351-30-30-M8-EE-55
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30
(1.18)
30
M8 x 1.25 2
(.08)
8
(.31)
114 40 855 7.5 15
351-30-40-M8-EE-55
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40 76 15 757 10 15
351-40-30-M8-EE-55
Download the CAD
40
(1.57)
30 M8 x 1.25 2
(.08)
8
(.31)
205 105 1535 7.5 20
351-40-40-M8-EE-55
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40 164 40 1635 10 20
351-50-30-M10-EE-55
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50
(1.97)
30 M10 x 1.5 2
(.08)
10
(.39)
343 110 2570 7.5 25
351-50-40-M10-EE-55
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40 245 70 2445 10 25
351-50-50-M10-EE-55
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50 178 35 2225 12.5 25
351-60-30-M10-EE-55
Download the CAD
60
(2.36)
30 M10 x 1.5 2
(.08)
10
(.39)
453 109 3400 7.5 30
351-60-40-M10-EE-55
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40 330 84 3300 10 30
351-70-45-M10-EE-55
Download the CAD
70
(2.76)
45 M10 x 1.5 3
(.12)
10
(.39)
356 100 4000 11.25 35
351-75-40-M12-EE-55
Download the CAD
75
(2.95)
40 M12 x 1.75 3
(.12)
12
(.47)
465 160 4650 10 35
351-75-55-M12-EE-55
Download the CAD
55 327 85 4500 13.75 35
351-100-40-M16-EE-55
Download the CAD
100
(3.94)
40 M16 x 2.0 3
(.12)
16
(.63)
800 240 8000 10 50
351-100-55-M16-EE-55
Download the CAD
55 560 200 7700 13.75 50
351-100-75-M16-EE-55
Download the CAD
75 384 100 7200 18.75 50
 
Type ES - With 1 Tapped Hole and 1 Threaded Stud

Dimensions in:

millimeters
(inches)

Part Number d1 h
d2
Thread
l
Stud Length
s t Spring Rate ~N/mm Shear Load Spring Rate
N/mm
Max. Load
[N]
Max. Deflection
~mm
Shear Load Max. Deflection
mm
351-8-8-M3-ES-55
Download the CAD
8
(.31)
8
M3 x .5 6
(.24)
1
(.04)
3
(.12)
35 2.2 75 2 4
351-10-10-M4-ES-55
Download the CAD
10
(.39)
10 M4 x .7

10
(.39)

1.2
(.05)

4
(.16)
36 9 90 2.5 5
351-10-15-M4-ES-55
Download the CAD
15 17 4.6 65 3.75 5
351-15-10-M4-ES-55
Download the CAD
15
(.59)
10
M4 x .7 10
(.39)
1.4
(.06)
4
(.16)
80 22.3 200 2.5 7
351-15-15-M4-ES-55
Download the CAD
15 35 10 130 3.75 7
351-15-20-M4-ES-55
Download the CAD
20 30 6.2 150 5 7
351-20-15-M6-ES-55
Download the CAD
20
(.79)
15
M6 x 1.0 18
(.71)
2
(.08)
6
(.24)
95 27 355 3.75 10
351-20-20-M6-ES-55
Download the CAD
20 53 15 265 5 10
351-20-25-M6-ES-55
Download the CAD
25 50 13 315 6.25 10
351-25-15-M6-ES-55
Download the CAD
25
(.98)
15
M6 x 1.0 18
(.71)
2
(.08)
6
(.24)
184 35 690 3.75 12.5
351-25-20-M6-ES-55
Download the CAD
20 121 28 605 5 12.5
351-25-30-M6-ES-55
Download the CAD
30 76 21 570 7.5 12.5
351-30-15-M8-ES-55
Download the CAD
30
(1.18)
15
M8 x 1.25 20
(.79)
2
(.08)
8
(.31)
143 60 535 3.75 15
351-30-30-M8-ES-55
Download the CAD
30 113 30 850 7.5 15
351-40-20-M8-ES-55
Download the CAD
40
(1.57)
20 M8 x 1.25 23
(.91)
2
(.08)
8
(.31)
302 82 1510 5 15
351-40-30-M8-ES-55
Download the CAD
30 204 55 1530 7.5 20
351-40-40-M8-ES-55
Download the CAD
40 163 35 1630 10 20
351-50-20-M10-ES-55
Download the CAD
50
(1.97)
20 M10 x 1.5 28
(1.10)
2
(.08)
10
(.39)
720 100 3600 5 20
351-50-30-M10-ES-55
Download the CAD
30 343 75 2575 7.5 25
351-50-40-M10-ES-55
Download the CAD
40 244 60 2440 10 25
351-50-50-M10-ES-55
Download the CAD
50 176 30 2200 12.5 25
351-60-30-M10-ES-55
Download the CAD
60
(2.36)
30 M10 x 1.5 28
(1.10)
2
(.08)
10
(.39)
453 101 3400 7.5 30
351-60-40-M10-ES-55
Download the CAD
40 333 80 3330 10 30
351-70-45-M10-ES-55
Download the CAD
70
(2.76)
45 M10 x 1.5 27
(1.06)
3
(.12)
10
(.39)
356 79 4000 11.25 35
351-75-40-M12-ES-55
Download the CAD
75
(2.95)
40 M12 x 1.75 37
(1.46)
3
(.12)
12
(.47)
460 120 4600 10 35
351-75-55-M12-ES-55
Download the CAD
55 328 80 4510 13.75 35
351-100-40-M16-ES-55
Download the CAD
100
(3.94)
40 M16 x 2.0 41
(1.61)
3
(.12)
16
(.63)
800 200 8000 10 50
351-100-55-M16-ES-55
Download the CAD
55 553 150 7600 13.75 50
351-100-75-M16-ES-55
Download the CAD
75 379 100 7100 18.75 50
 
Type SS - With 2 Threaded Studs

Dimensions in:

millimeters
(inches)

Part Number d1 h
d2
Thread
l
Stud Length
s Spring Rate ~N/mm Shear Load Spring Rate
N/mm
Max. Load
[N]
Max. Deflection
~mm
Shear Load Max. Deflection
mm
351-8-8-M3-SS-55
Download the CAD
8
(.31)
8
M3 x .5 6
(.24)
1
(.04)
35 2 70 2 4
351-10-10-M4-SS-55
Download the CAD
10
(.39)
10 M4 x .7

10
(.39)

1.2
(.05)

36 3 89 2.5 5
351-10-15-M4-SS-55
Download the CAD
15 16 4 60 3.75 5
351-15-10-M4-SS-55
Download the CAD
15
(.59)
10
M4 x .7 10
(.39)
1.4
(.06)
79 11 198 2.5 7
351-15-15-M4-SS-55
Download the CAD
15 33 8 125 3.75 7
351-15-20-M4-SS-55
Download the CAD
20 29 6 145 5 7
351-20-15-M6-SS-55
Download the CAD
20
(.79)
15
M6 x 1.0 18
(.71)
2
(.08)
94 15 352 3.75 10
351-20-20-M6-SS-55
Download the CAD
20 52 7 260 5 10
351-20-25-M6-SS-55
Download the CAD
25 50 6 310 6.25 10
351-25-15-M6-SS-55
Download the CAD
25
(.98)
15
M6 x 1.0 18
(.71)
2
(.08)
183 30 687 3.75 12.5
351-25-20-M6-SS-55
Download the CAD
20 120 17 602 5 12.5
351-25-30-M6-SS-55
Download the CAD
30 75 15 562 7.5 12.5
351-30-15-M8-SS-55
Download the CAD
30
(1.18)
15
M8 x 1.25 20
(.79)
2
(.08)
142 53 534 3.75 15
351-30-30-M8-SS-55
Download the CAD
30 112 20 843 7.5 15
351-40-20-M8-SS-55
Download the CAD
40
(1.57)
20 M8 x 1.25 23
(.91)
2
(.08)
300 76 1500 5 15
351-40-30-M8-SS-55
Download the CAD
30 204 50 1527 7.5 20
351-40-40-M8-SS-55
Download the CAD
40 162 27 1620 10 20
351-50-20-M10-SS-55
Download the CAD
50
(1.97)
20 M10 x 1.5 28
(1.10)
2
(.08)
718 95 3589 5 20
351-50-30-M10-SS-55
Download the CAD
30 343 66 2570 7.5 25
351-50-40-M10-SS-55
Download the CAD
40 244 59 2436 10 25
351-50-50-M10-SS-55
Download the CAD
50 176 45 2198 12.5 25
351-60-30-M10-SS-55
Download the CAD
60
(2.36)
30 M10 x 1.5 28
(1.10)
2
(.08)
453 96 3400 7.5 30
351-60-40-M10-SS-55
Download the CAD
40 330 75 3300 10 30
351-70-45-M10-SS-55
Download the CAD
70
(2.76)
45 M10 x 1.5 27
(1.06)
3
(.12)
356 116 4000 11.25 35
351-75-40-M12-SS-55
Download the CAD
75
(2.95)
40 M12 x 1.75 37
(1.46)
3
(.12)
450 130 4500 10 35
351-75-55-M12-SS-55
Download the CAD
55 320 120 4400 13.75 35
351-100-40-M16-SS-55
Download the CAD
100
(3.94)
40 M16 x 2.0 41
(1.61)
3
(.12)
800 220 8000 10 50
351-100-55-M16-SS-55
Download the CAD
55 545 210 7500 13.75 50
351-100-75-M16-SS-55
Download the CAD
75 373 200 7000 18.75 50