Elastomer spring type 295, DIN 9835, CR- Advantages over steel springs include break resistance and material damping - Tool damage due to fatigued, broken steel springs excluded - If used correctly, a service life of more than 2 x 106 load changes is possible without any problems - Material: Chloroprene rubber (CR), black - Hardness to DIN 53 505: 70 Shore A - Tensile strength to DIN 53 504: ? 12 N/mm² - Elongation at break according to DIN 53 504: ? 250 % - Tear resistance according to DIN 53 507: 4 N/mm - Rebound elasticity according to DIN 53 512: 30 % - Abrasion according to DIN 53 516: ? 150 mm³ - Compression set according to DIN 53 517 (24 h/70 °C): ? 20 % - Bulk density to DIN 53 479: 1.37 g/cm³ - Spring deflection (s): 40 % - Slump (Ss): 3-5 % - Preload (Sv) factor approx.: 1.5 of slump - Specified values for maximum stress: approx. 10 % (factor 1.1) - Temperature resistance: -20 °C to +80 °C.