Conical Spring of Primary Suspension for Train Bogie

• Customization: Available
• After-sales Service: Technical Support
• Warranty: 1year
• Model NO.: Customized Type
• Customized: Customized
• Certification: ISO14001, ISO9001, ISO22163;ISO45001
• Type: Train Bogie
• Transport Package: Polybag-Paper Carton-Wooden Case
• Specification: Customized
• Trademark: znspring
• Origin: Dezhou China
• HS Code: 4016999090
• Production Capacity: 300 Sets / Day

Product Description

Installed between the bogie axle box or the balance beam and the frame is called the axle box suspension device, also known as the first suspension device
1. Control the movement of machinery, such as springs that control the opening and closing of cylinder valves in internal combustion engines, and control springs in clutches;
2. Absorb vibration and impact energy, such as shock-absorbing springs in various vehicles and springs of various buffers;

Specifications

Number	Performance point	Indicator	Unit	Reference Standard
1	Hardness (Shore A)	50±5	Shore A	GB/T 531.1
2	Tensile Strength	≥14	MPa	GB/T 528
3	Elongation at break	≥400	%	GB/T 528
4	Tear strength without incision	≥26	kN/m	GB/T 529
5	Metal to rubber bond strength	≥4	MPa	GB/T 11211
6	Constant compression set(Type A, 70oC×72h)	≤30	%	GB/T 7759
7	Low temperature brittleness temperature	≤-50	oC	GB/T 1682
8	Hot air aging (70oC×24h) Hardness change	≤7	Shore A	GB/T 3512
	Hot air aging (70oC×24h) Tensile strength change rate	≥-25	%	GB/T 3512
	Hot air aging (70oC×24h) Standardized rate of elongation at break	25	%	GB/T 3512
9	DIN wear	≤200	mm3	GB/T 9867
10	Ozone aging resistance (40oC×24h, 50pphm, relative humidity≤65%, pre-extension 5%)	No cracks	/	GB/T 7762
11	Compression creep performance, creep increment (70oC×72h)	≤0.045	mm/mm	GB/T 19242
12	Oil resistance, mass change rate (70oC×72h, No. 1 oil)	≤80	%	GB/T 1690
13	Cleaning agent resistance, hardness change (50oC×72h, 5% oxalic acid aqueous solution)	±5	Shore A	GB/T 1690

 

 

Note

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