GN 353.2 Vibration / Shock Absorption Mounts Rubber, Conical Type, with Steel Components, with Tapped Hole

Vibration / Shock Absorption Mounts GN 353.2: Rubber, Conical Type, with Steel Components, with Tapped Hole

Technical Instructions Vibration Isolation Mounts / Rubber Bumpers Plastic Characteristics

Product description

Vibration / shock absorption mounts GN 353.2 are used as end-stop bumpers, e.g. for conveyors.

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.

The parabolic shape of these mounts generates progressive resilience characteristics: impact and shock effects are absorbed more gently.

Specification

Rubber
Natural rubber (NR), black

Vulcanized to the cover plates
Operating temperature up to 176 °F (80 °C)
Shore hardness A ±5
Medium55

Cover plate / Tapped insert
Steel, zinc plated, yellow passivated finish

RoHS

On request

Versions with Shore hardness A ±5
Versions with Shore hardness 40 / 70

GN 353.2 Rubber Vibration / Shock Absorption Mounts, Conical Type, with Steel Components, with Tapped Hole sketch

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Part Options / Table

Part Number	d₁	h	d₂	s	t	Spring rate ≈ Hardness 55	Max. load Hardness 55	Max. deflection ≈ Hardness 55

353.2-19-25-1/4-55	0.75	0.98	1/4 x 20	0.08	0.24	90.96 lbf/in (15.93 N/mm)	22.00 lbf (97.86 N)	0.24
353.2-25-32-1/4-55	0.98	1.26	1/4 x 20	0.08	0.24	132 lbf/in (23.11 N/mm)	33.00 lbf (146.79 N)	0.25
353.2-32-38-5/16-55	1.26	1.50	5/16 x 18	0.08	0.31	155 lbf/in (27.14 N/mm)	45.00 lbf (200.16 N)	0.29
353.2-38-45-5/16-55	1.50	1.77	5/16 x 18	0.08	0.31	374 lbf/in (65.49 N/mm)	146 lbf (649.44 N)	0.39
353.2-45-51-3/8-55	1.77	2.01	3/8 x 16	0.08	0.39	284 lbf/in (49.73 N/mm)	168 lbf (747.3 N)	0.59
353.2-51-57-3/8-55	2.01	2.24	3/8 x 16	0.08	0.39	285 lbf/in (49.91 N/mm)	191 lbf (849.61 N)	0.67

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Inch

d₁	h	d₂	s	t	Spring rate ≈ Hardness 55	Max. load Hardness 55	Max. deflection ≈ Hardness 55

0.75	0.98	1/4 x 20	0.08	0.24	90.96 lbf/in (15.93 N/mm)	22.00 lbf (97.86 N)	0.24
0.98	1.26	1/4 x 20	0.08	0.24	132 lbf/in (23.11 N/mm)	33.00 lbf (146.79 N)	0.25
1.26	1.50	5/16 x 18	0.08	0.31	155 lbf/in (27.14 N/mm)	45.00 lbf (200.16 N)	0.29
1.50	1.77	5/16 x 18	0.08	0.31	374 lbf/in (65.49 N/mm)	146 lbf (649.44 N)	0.39
1.77	2.01	3/8 x 16	0.08	0.39	284 lbf/in (49.73 N/mm)	168 lbf (747.3 N)	0.59
2.01	2.24	3/8 x 16	0.08	0.39	285 lbf/in (49.91 N/mm)	191 lbf (849.61 N)	0.67

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Technical Instructions

Buffers and rubber buffers are best at absorbing compressive forces. Tensile, shearing, flexural and torsional loads can be absorbed to a limited extent but negatively impact the service life. The information on load capacity in the standard sheet or technical section contains non-binding guide values. Exceeding these values can also lead to reduced service life or immediate failure of the part.

The examples show how a design can be modified to turn unfavorable load situations into favorable arrangements with compressive load.

The service life of elastomer elements can be decreased by environmental conditions, such as UV radiation, weathering, hydrocarbons and chemicals, as well as by aging. Positioning with appropriate protection will extend the service life.

Construction Examples


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US$1.47

In Stock: 404

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Please note our quantity discounts (US Dollars).

Min	Max	Price
1	99	US$1.47
100	249	US$1.35
250	499	US$1.23
≥ 500		US$1.10

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: 0.019 lbs

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