- Overview
- Product Description
- Detailed Photos
- Product Parameters
- Company Profile
Basic Info.
Model NO.
NB
Standard
International
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
Material: closed-cell PU elastomer (Polyurethane)
Color: red
Dimensions can be customized,Other dimensions, punched and moulded parts on request.
Thermotest is using "Sylodyn," a polyurethane dampening material developed by Getzner, a company with worldwide success in railroad and construction, in subway, railway, and highway soundproofing and dampening. Compared to existing dampening rubber, Sylodyn is more durable, more stable and is able to be made thinner in order to fit into small spaces, making installation quick and easy.
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 0.075N/mm2 | approx. 8% |
| Dynamic range of use (dynamic loads) | up to 0.120N/mm2 | up to 18% |
| Load peaks (occasional, brief loads) | up to 2.0 N/MM2 | approx. 70% |
Technical Data
| Material Properties | Test Methods | Comment | |
| Mechanical loss factor | 0.07 | DIN 53513 1 | temperature-, frequency-, specific load- and amplitude-dependent |
| Rebound resilience | 70% | EN ISO 8307 1 | |
| Compression hardness 3 | 0.09N/mm2 | EN ISO 844 1 | at 10 % linear compression, 3rd 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 | 0.75N/mm2 | at specific load of 0.075N/mm2 | |
| Dynamic modulus of elasticity 3 | 0.85N/mm2 | DIN 53513 1 | at specific load of 0.075 N/mm2, 10 Hz |
| Static shear modulus | 0.12N/mm2 | DIN ISO 1827 1 | at a pretension of 0.075 N/mm2 |
| Dynamic shear modulus | 0.17N/mm2 | DIN ISO 1827 1 | at a pretension of 0.075 N/mm2, 10 Hz |
| Min. tensile stress at rupture | 1.00 N/mm2 | DIN EN ISO 527-3/5/500 1 | |
| Min. tensile elongation at rupture | 300% | DIN EN ISO 527-3/5/500 1 | |
| Abrasion 2 | ≤ 900 mm3 | DIN IS O 4649 1 | load 5 N |
| Coefficient of friction (steel) | 0.7 | EN ISO 82951 | dry, static friction |
| Coefficient of friction (concrete) | 0.7 | EN ISO 82951 | dry, static friction |
| Coefficient of friction(wood) | 0.5 | EN ISO 82951 | dry, static friction |
| Specific volume resistance | > 1010 Ω·cm | EN IEC 62631-3-1 1 | dry |
| Thermal conductivity | 0.07 W/mK | DIN EN 12667 | |
| 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
0.0075 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.
· Parameter: thickness of the Sylodyn® bearing
· Shape factor q = 3
0.0075 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.
· Parameter: thickness of the Sylodyn® bearing
· Shape factor q = 3
· Quasi-static modulus of elasticity as tangential modulus from the load deflection curve. Dynamic modulus of elasticity from sinusoidal excitation with a velocity level 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
· Parameter: frequency
· Shape factor q = 3
· Measurement in accordance with DIN 53513
· Parameter: frequency
· 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 Sylodyn® NB on a rigid surface.
· Parameter: thickness of the Sylodyn® bearing
· Shape factor q = 3
· Parameter: thickness of the Sylodyn® bearing
· Shape factor q = 3
· Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consisting of Sylodyn® NB based on a stiff subgrade.
· Parameter: factor of transmission in dB, isolation rate in %
· Parameter: factor of transmission in dB, isolation rate in %
