Inch and Metric Size,
Vibration / Shock Absorption Mounts
Conical Type
, with Stainless Steel Components
GN 254

RoHS Compliant

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Specification
Information

Mount body: NBR synthetic rubber, vulcanized, 55 durometer (shore hardness +/-5°)
Cover plate: Stainless steel, molded in
Tapped inserts/threaded studs: Stainless steel, molded in

Type E - with tapped hole
Type S - with threaded stud

Shipping

GN 254 vibration / shock absorption mounts, also known as shock absorbing mounts, vibration mounts, anti-vibration mounts, vibration bobbins or rubber bumpers, are frequently used as end-stop bumpers, e.g., for conveyor trolleys.
They absorb most of the accumulated kinetic energy on impact. They act as dampers and prevent damaging shock and rebound. They also act as sound dampers.
These isolation mounts are also used as leveling feet.
Versions with 40 or 70 durometer natural rubber material available upon request.
Specials, with certain minimum quantities, also available.

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For CAD download instructions, click
HERE

Inch Table, Type E - With Tapped Hole

Dimensions in:

inches
(millimeters)

Part Number d1 h
d2
Thread
d3 s t Spring Rate ~lbf./in. Max. Load
[lbf]
Max. Deflection
~in.
254-19-10X24-55
Download the CAD
.75
(19)
.63
(16)
10-24 .47
(12)
.08
(2)
.20
(5)
160 25 .16
254-25-1/4X20-55
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.98
(25)
.81
(20.5)
1/4-20 .65
(16.5)
.08
(2)
.24
(6)
468 97 .21
254-32-5/16X18-55
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1.26
(32)
1.02
(26)
5/16-18 .83
(21)
.08
(2)
.31
(8)
799 205 .26
254-38-5/16X18-55
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1.50
(38)
1.26
(32)
5/16-18 .96
(24.5)
.08
(2)
.31
(8)
714 270 .37
254-50-3/8X16-55
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1.97
(50)
1.69
(43)
3/8-16 1.26
(32)
.08
(2)
.39
(10)
885 364 .41
 
Inch Table, Type S - With Threaded Stud

Dimensions in:

inches
(millimeters)

Part Number d1 h
d2
Thread
l d3 s Spring Rate ~lbf./in. Max. Load
[lbf]
Max. Deflection
~in.
254-19-10X24-9.5-55
Download the CAD
.75
(19)
.63
(16)
10-24 .375 .47
(12)
.08
(2)
160 25 .16
254-19-10X24-19-55
Download the CAD
.750
254-25-1/4X20-12.7-55
Download the CAD
.98
(25)
.81
(20.5)
1/4-20 .500 .65
(16.5)
.08
(2)
468 97 .21
254-25-1/4X20-25.4-55
Download the CAD
1.000
254-32-5/16X18-15.9-55
Download the CAD
1.26
(32)
1.02
(26)
5/16-18 .625 .83
(21)
.08
(2)
799 205 .26
254-32-5/16X18-31.8-55
Download the CAD
1.250
254-38-5/16X18-15.9-55
Download the CAD
1.50
(38)
1.26
(32)
5/16-18 .625 .96
(24.5)
.08
(2)
714 270 .37
254-38-5/16X18-31.8-55
Download the CAD
1.250
254-50-3/8X16-15.9-55
Download the CAD
1.97
(50)
1.69
(43)
3/8-16 .625 1.26
(32)
.08
(2)
885 364 .41
254-50-3/8X16-31.8-55
Download the CAD
1.250
 
Metric Table, Type E - With Tapped Hole

Dimensions in:

millimeters
(inches)

Part Number d1 h
d2
Thread
d3 s t Spring Rate ~N/mm Max. Load
[N]
Max.Deflection
~mm
254-19-M5-55
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19
(.75)
16
(.63)
M5 x .80 12
(.47)
2
(.08)
5
(.20)
28 110 4
254-25-M6-55
Download the CAD
25
(.98)
20.5
(.81)
M6 x 1.0 16.5
(.65)
2
(.08)
6
(.24)
82 430 5.25
254-32-M8-55
Download the CAD
32
(1.26)
26
(1.02)
M8 x 1.25 21
(.83)
2
(.08)
8
(.31)
140 910 6.5
254-38-M8-55
Download the CAD
38
(1.50)
32
(1.26)
M8 x 1.25 24.5
(.96)
2
(.08)
8
(.31)
125 1200 9.5
254-50-M10-55
Download the CAD
50
(1.97)
43
(1.69)
M10 x 1.5 32
(1.26)
2
(.08)
10
(.39)
155 1620 10.5
 
Metric Table, Type S - With Threaded Stud

Dimensions in:

millimeters
(inches)

Part Number d1 h
d2
Thread
l d3 s Spring Rate ~N/mm Max. Load
[N]
Max.Deflection
~mm
254-19-M5-6-55
Download the CAD
19
(.75)
16
(.63)
M5 x .80 6 12
(.47)
2
(.08)
28 110 4
254-19-M5-10-55
Download the CAD
10
254-19-M5-20-55
Download the CAD
20
254-25-M6-8-55
Download the CAD
25
(.98)
20.5
(.81)
M6 x 1.0 8 16.5
(.65)
2
(.08)
82 430 5.25
254-25-M6-12-55
Download the CAD
12
254-25-M6-25-55
Download the CAD
25
254-32-M8-10-55
Download the CAD
32
(1.26)
26
(1.02)
M8 x 1.25 10 21
(.83)
2
(.08)
140 910 6.5
254-32-M8-16-55
Download the CAD
16
254-32-M8-30-55
Download the CAD
30
254-38-M8-10-55
Download the CAD
38
(1.50)
32
(1.26)
M8 x 1.25 10 24.5
(.96)
2
(.08)
125 1200 9.5
254-38-M8-16-55
Download the CAD
16
254-38-M8-30-55
Download the CAD
30
254-50-M10-12-55
Download the CAD
50
(1.97)
43
(1.69)
M10 x 1.5 12 32
(1.26)
2
(.08)
155 1620 10.5
254-50-M10-20-55
Download the CAD
20
254-50-M10-40-55
Download the CAD
40