HAMM MOUNT

Technical Specifications

Property	Value	Standard
Part Number	3128 0458 18	OEM Spec
Type	Tram Chevron Spring	-
Category	Chevron Springs	-
Dimensions	Compact design for low-floor vehicle packaging	OEM Spec
Cross-Reference	3128045818	OEM
Hardness	60 ± 5 Shore A	ISO 48-4
Tensile Strength	≥ 18 MPa	ISO 37
Elongation	≥ 350%	ISO 37
Compression Set	≤ 20%	ISO 815-1
Temperature Range	-45°C to +85°C	-
Fire Safety	EN 45545-2 HL2/HL3	Railway
Fatigue Life	> 2.5M cycles	Testing

Applications

Part 3128 0458 18 is used in tram and streetcar bogie primary suspension. Compatible models include: Low-floor trams, streetcar bogies, Alstom Citadis, Siemens Combino/Avenio, Stadler Tramlink, CAF Urbos.

• Railway & Transit: Metro systems, light rail, passenger trains, freight locomotives - primary suspension and bogie component applications
• Construction Equipment: Excavators, bulldozers, wheel loaders by Caterpillar, Komatsu, Volvo
• Mining & Heavy Industry: Mining trucks, material handling equipment, crushing and screening plants
• Automotive: Engine mounts, transmission mounts for heavy trucks and passenger vehicles
• Power Generation: Generator set mounting, industrial compressor isolation

Material & Compound

• Base Polymer: Natural Rubber (NR) / SBR blend - optimized for vibration damping
• Reinforcement: High-strength fabric layers and steel reinforcement plates
• Protection: UV stabilizers, antiozonants, antioxidants for extended service life
• Fire Safety: EN 45545-2 compliant fire retardant additives
• Bonding: Proprietary rubber-to-metal bonding process (> 25 MPa pull-out strength)

Installation & Maintenance

Installation

1. Clean mounting surfaces - remove all oil, corrosion, and old rubber residue
2. Verify part number 3128 0458 18 matches equipment specifications
3. Position component with correct orientation per installation drawings
4. Install hardware hand-tight, then torque in stages (30%, 60%, 100%) using cross-pattern
5. Re-check torque after 100 hours of operation

Inspection Schedule

• Monthly: Visual check for cracks, tears, contamination
• Quarterly: Torque verification, deflection measurement
• Annually: Hardness test, comprehensive condition assessment

Quality & Certification

• ISO 9001:2015 Quality Management System
• EN 45545-2 Fire Safety (HL2 & HL3)
• 100% incoming material testing
• SPC-monitored vulcanization process
• Load-deflection testing per batch
• Full traceability documentation available

Frequently Asked Questions

What is part 3128 0458 18?

Part 3128 0458 18 is an EN 45545-2 certified chevron spring for low-floor tram and streetcar bogies. The compact dimensions accommodate tight packaging constraints of low-floor vehicle designs where the floor passes between or above the wheelsets. Despite its compact size, the 3128 0458 18 provides

Do you ship to the United States?

Yes, HAMM Mount ships to all 50 US states. Standard delivery is 7-10 business days via DHL or FedEx with full tracking and insurance. Express 3-5 day service is available for urgent orders.

What warranty is included?

Part 3128 0458 18 carries a 24-month warranty against defects in materials and workmanship under normal operating conditions.

Can I get custom modifications?

Yes, HAMM Mount offers custom modifications including dimensional changes, alternative rubber compounds, special hardness grades, and additional certifications. Contact our engineering team.

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