Nylon fastener JL-B

Application: The fastener is a bolt mounted© typeelastic rod fastener in compliance with National railway standard. Its characteristic is using the common B type elastic rod, thus the product’s generalization degree is high. It mainly applies to metro railway transportation, which can reduce noise, vibration and other impact brought from subway to the surrounding urban environment. Fastener structural characteristics: The fastener mainly consists of rubber tie plate under the rail, vibration absorber and insulation buffer washer. The vibration absorber is the main part of the vibration and noise reduction fastener, it consists of upper and lower iron washers, middle rubber vibration absorption washer, nylon locking ring and so on, its unique advantage is the detachable structure, the middle rubber vibration absorption washer can be replaced, iron washer can be repeatedly used, which significantly reduced the maintenance and running costs of rail fastener. Technical parameters: 1. - The fastener applies to 60kg. m Steel rails 2. - Elastic rod types: National railway standard B type elastic rod 3. - Static stiffiiess: 10 ~ 15KN/mm 4. - Ratio of dynamic stiffiiess to static stiffiiess: <1.35 5. - Height adjustment: 40mm 6. - Railway gauge: single track -8 ~ +10mm 7. - Extemal dimensions: 370mm*200mm 8. - Anchor boit hole spacing: 240mmx 100mm 9. - Application scope: for area, ground and tunnel with higher requirements towards vibration and noise réduction