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GN 342.1 Vibration Damping Leveling Feet Steel, Tapped Socket Type

Standard Sheet GN 342.1 Print This Page Vibration Damping Performance Chart Plastic Characteristics

Product description

The load capacity of leveling feet GN 342.1 specified in the table is a recommendation of the permanent static load up to which the damping pad should be used.

This static load corresponds to a surface pressure of 0.4 N/mm², at which the material achieves its optimal dynamic damping ability. This also takes into account that there is an additional load of up to a pressure of 0.6 N/mm² in the event of a dynamic load.

These leveling feet cannot be disassembled.

Specification

Base / tapped socket
Steel, zinc plated, blue passivated finish

Vibration damping pad
Elastomer (PUR)

Sylomer SR 450-12
Non-skid, glued
Gray
Oil resistant
Operating range from
-22 °F to +158 °F (-30 °C to +70 °C)

RoHS

GN 342.1 Steel Vibration Damping Leveling Feet, Tapped Socket Type sketch

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Part Options / Table

Type

SV	With damping pad

Part Number	d₁	d₂	d₃	l₂	l₃	l₄ Compression in N/mm² 0	0.4	0.6	A/F	t	Damping pad area in mm²	Load at compression of 0.4 N/mm² (See information)

342.1-32-M10-SV	1.26	M 10	1.18	1.14	0.43	0.22	0.15	0.11	0.59	0.41	707	62.95 lbf (280 N)
342.1-40-M12-SV	1.57	M 12	1.50	1.18	0.37	0.24	0.17	0.13	0.67	0.45	1134	101 lbf (450 N)
342.1-50-M12-SV	1.97	M 12	1.89	1.20	0.35	0.26	0.19	0.15	0.67	0.45	1809	162 lbf (720 N)
342.1-60-M16-SV	2.36	M 16	2.28	1.48	0.39	0.28	0.22	0.17	0.94	0.63	2641	236 lbf (1050 N)

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Metric

Dimensions in: Inch (change to Metric)

d₁	d₂	d₃	l₂	l₃	l₄ Compression in N/mm² 0	0.4	0.6	A/F	t	Damping pad area in mm²	Load at compression of 0.4 N/mm² (See information)

1.26	M 10	1.18	1.14	0.43	0.22	0.15	0.11	0.59	0.41	707	62.95 lbf (280 N)
1.57	M 12	1.50	1.18	0.37	0.24	0.17	0.13	0.67	0.45	1134	101 lbf (450 N)
1.97	M 12	1.89	1.20	0.35	0.26	0.19	0.15	0.67	0.45	1809	162 lbf (720 N)
2.36	M 16	2.28	1.48	0.39	0.28	0.22	0.17	0.94	0.63	2641	236 lbf (1050 N)

Build & Price

Base diameter d₁

1.26

1.57

1.97

2.36

Thread d₂

M 10

M 12

M 16

Type

SV - With damping pad

Vibration Damping Performance Chart

When using GN 342.1 vibration damping leveling feet the following differentiation in vibration damping is made:

Active vibrations:
These vibrations originate from a device (a machine) and should be kept away from the equipment (table, frame).

Passive vibrations:
These vibrations originate from equipment and should be kept away from a device (a machine).

The efficiency of vibration damping depends on the frequency of the vibration to be damped (interference frequency) as well as on the natural frequency (resonance frequency) of the damping pad.

A vibration damping effect is only achieved when the interference frequency is greater than √2-times the resonance frequency of the damping pad. The greater the difference [∆] between the two, the better the damping effect.

The resonance frequency of the damping pad depends on the type (composition, density) of the material, the cross section and the static load.

The performance chart on the left shows all the required data of the standard material (SR 450-12) of the damping pad. Damping pads with other damping properties are available on request.

Example

Static load per leveling foot: 400 N

Compression for leveling foot d₁ = 32 mm

400 N / 707 mm² = 0,57 N/mm²

Compression for leveling foot d₁ = 40 mm

400 N / 1134 mm² = 0,34 N/mm²

The leveling foot with d₁= 40 mm should be preferred, at which the compression is closer to 0.4 N/mm².

The above chart shows:
Resonance frequency at compression of 0.34 N/mm² : 17.5 Hz

The lower chart shows:
Degree of insulation at 66 Hz interference frequency (P1): 92 %
Degree of insulation at 98 Hz interference frequency (P2): 97 %

At ≈ 200 Hz interference frequency the degree of insulation is at 100%.

Selected Part

Part Number

Total (net)

US$18.02

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Quantity

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Please note our quantity discounts (US Dollars).

Min	Max	Price
1	49	US$18.02
50	99	US$16.52
100	249	US$15.02
≥ 250		US$13.52

Prop 65: Not compliant

WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov

RoHS: Compliant

This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).

Weight: 0.143 lbs

If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351