Vibration / Shock Absorption Mounts
GN 254
Conical Type, with Stainless Steel Components
Inch | Metric
Inch table
1
2
d1
d2
Length l
.75
19
10 x 24
.37
9.5
.98
25
1/4 x 20
1.26
32
Dimensions in: inches - millimeters
3
d3
h
s
t
Spring rate ≈
Hardness 55
Max. load
Hardness 55
Max. deflection ≈
.75
19
.47
12
.63
16
.08
2
.20
5
160 lbf/in
28 N/mm
24.73 lbf
110 N
.16
4
.50
12.7
1.00
25.4
.65
16.5
.81
20.5
.08
2
.24
6
468 lbf/in
82 N/mm
96.67 lbf
430 N
.21
5.25
5/16 x 18
.63
15.9
1.25
31.8
.83
21
1.02
26
.08
2
.31
8
799 lbf/in
140 N/mm
205 lbf
910 N
.26
6.5
1.50
38
5/16 x 18
.63
15.9
1.25
31.8
.96
24.5
1.26
32
.08
2
.31
8
714 lbf/in
125 N/mm
270 lbf
1200 N
.37
9.5
1.97
50
3/8 x 16
.63
15.9
1.25
31.8
1.26
32
1.69
43
.08
2
.39
10
885 lbf/in
155 N/mm
364 lbf
1620 N
.41
10.5
Thread
Metric table
Dimensions in: millimeters - inches
1
2
d1
d2
Length l
3
19
.75
M 5
6
.24
10
.39
25
.98
M 6
8
.31
32
1.26
M 8
38
1.50
50
1.97
d3
h
s
t
Spring rate ≈
Hardness 55
Max. load
Hardness 55
Max. deflection ≈
20
.79
12
.47
16
.63
2
.08
5
.20
28 N/mm
160 lbf/in
110 N
24.73 lbf
4
.16
12
.47
25
.98
16.5
.65
20.5
.81
2
.08
6
.24
82 N/mm
468 lbf/in
430 N
96.67 lbf
5.25
.21
10
.39
16
.63
30
1.18
21
.83
26
1.02
2
.08
8
.31
140 N/mm
799 lbf/in
910 N
205 lbf
6.5
.26
M 8
10
.39
16
.63
30
1.18
24.5
.96
32
1.26
2
.08
8
.31
125 N/mm
714 lbf/in
1200 N
270 lbf
9.5
.37
M 10
12
.47
20
.79
40
1.57
32
1.26
43
1.69
2
.08
10
.39
155 N/mm
885 lbf/in
1620 N
364 lbf
10.5
.41
Thread
Specification
4
Information
• Mount body
GN 254 vibration / shock absorption mounts are frequently used as end-stop bumpers, e.g. for
Synthetic rubber Perbunan® (NBR)
conveyors.
-- Black
They absorb most of the accumulated kinetic energy on impact. They act as dampers and prevent
-- Vulcanized to the cover plate
damaging shock and rebound. They also act as sound dampers.
-- Temperature resistant up to 175 °F (80 °C)
These isolation mounts are also used as set-up elements and leveling feet.
-- Shore hardness A ±5
see also...
Medium
55
• Vibration / Shock Absorption Mounts GN 352 / GN 452
• Cover plate, tapped insert, threaded stud
Stainless steel, molded-in
• RoHS compliant
• Silicone Vibration / Shock Absorption Mounts GN 256
How to order (With tapped hole)
1
On request
2
4
GN 254-25-M6-55
• Versions with shore hardness A ±5
How to order (With threaded stud)
-- Soft
40
1
2
3
4
-- Hard
70
• Specials, with certain minimum quantities
2
GN 254-19-10X24-9.5-55
| 3.4 Installing, lifting, dampening with leveling feet, lifting gear and rubber elements
1
Outside diameter d1
2
Thread d 2
4
Hardness
1
Outside diameter d1
2
Thread d 2
3
Length l
4
Hardness
www.jwwinco.com | phone: 1-800-877-8351
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