SR 18 Customized Hot sale vibration Isolation Pads polyurethane pads

• Customization: Available
• Color: Fixed
• Customized: Customized
• Model NO.: SR 18
• Type: Bearing
• Material: Polyurethane rubber
• Thickness: 12.5/25mm
• Roll: 1.5m wide, 5.0m long
• Strip: Up to 1.5m wide, up to 5.0m long
• Shape: Customized
• Transport Package: Carton
• Specification: Customized
• Trademark: THERMOTEST/OEM
• Origin: China
• Production Capacity: 50000/Month

Product Description

Product Description

Material: Mixed-celled PU elastomer (Polyurethane)

Color: orange

Dimensions can be customized,Other dimensions, punched and moulded parts on request.


PRODUCT PROPERTIES

• Combination of spring and damping characteristics
• Elastic, versatile polyurethane material
• Mixed-cell pore structure

 

ADVANTAGES

• High elasticity, long service life
• Static range of use of 0.011 N/mm² to 1.2 N/mm²
• Load peaks up to 6.0 N/mm²
• Very low amplitude dependence
• Proven long-term behaviour
• High fatigue strength
• Finely graded range (10 standard types) for optimum system design
• Ability to provide customer-specific modifications

 

Detailed Photos

 

 

Product Parameters

 

Range of use	Compressive	Deformation
	Shape factor-dependent, the specified values apply to shape factor of q=3
Static range of use (static loads)	up to 0.018N/mm^2	approx. 7%
Impact range of use (dynamic loads)	up to 0.023N/mm^2	up to 20%
Load peaks (occasional, brief loads)	up to 0.75 N/MM^2	approx. 80%

Technical Data
 

Material Properties		Test Methods	Comment
Mechanical loss factor	0.23	DIN 53513 ^1	temperature-, frequency-, specific load- and amplitude-dependent
Rebound resilience	40 %	EN ISO 8307 ^1
Compression hardness ^3	0.02N/mm^2	EN ISO 844^1	at 10 % linear compression, 3^rd load cycle
Compression set^2	< 5 %	EN ISO 1856 ^1	50 % deformation, 23 °C, 72 h, 30 min after removal of load
Static modulus of elasticity ^3	0.08 N/mm^2		at specific load of 0.018 N/mm^2
Dynamic modulus of elasticity^3	0.29N/mm^2	DIN 53513 ^1	at specific load of 0.018 N/mm^2, 10 Hz
Static shear modulus	0.06N/mm^2	DIN ISO 1827^1	at a pretension of 0.018 N/mm^2
Dynamic shear modulus	0.12N/mm^2	DIN ISO 1827^1	at a pretension of 0.018 N/mm^2, 10 Hz
Min. tensile stress at rupture	0.35 N/mm^2	DIN EN ISO 527-3/5/500 ^1
Min. tensile elongation at rupture	230%	DIN EN ISO 527-3/5/500 ^1
Abrasion^2	≤ 400 mm^3	DIN IS O 464 9 ^1	load 2.5 N
Coefficient of friction (steel)	0.5	Getzner Werkstoffe	dry, static friction
Coefficient of friction (concrete)	0.7	Getzner Werkstoffe	dry, static friction
Specific volume resistivity	> 10^10 Ω·cm	DIN EN 6 2631-3-1 ^1	dry
Thermal conductivity	0.05 W/mK	DIN EN 12 667
Temperature range	-30 °C to 70 °C		short term higher temperatures possible
Flammability	class E	EN ISO 11925-2	normal combustible, EN 13501-1

¹Measurement/evaluation in accordance with the relevant standard
² The measurement is performed on a densitydependent basis with differing test parameters
³ Values apply to shape factor q = 3

 

· Quasi-static load deflection curve measured with a loading rate of
0.0018 N/mm2/s.

· Testing between flat and plane-parallel steel plates, recording of 3rd load, with filtered starting range in accordance with ISO 844, testing at room temperature.

· Shape factor q = 3

· Quasi-static modulus of elasticity as tangential modulus from the load deflection curve. Dynamic modulus of elasticity from sinusoidal excitation at a vibration velocity of 100 dBv re. 5·10^-8 m/s (corresponding to a vibration amplitude of 0.22 mm at 10 Hz and 0.08 mm at 30 Hz).

· Measurement in accordance with DIN 53513

· Shape factor q = 3

· Natural frequencies of a vibratory system with a single degree of freedome, consisting of a mass and an elastic bearing made of Sylomer® SR 18 on a rigid surface.

· Parameter: thickness of the Sylomer® bearing

· Shape factor q = 3

 

· Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consisting of Sylomer® SR 18 based on a stiff subgrade.

· Parameter: factor of transmission in dB, isolation rate in %