Primary Conical Spring Product Range - Trelleborg IAVS

Primary Conical

Primary Conical Springs

The primary conical spring is an easily fitted and compact suspension unit in which the rubber is loaded in combined shear and compression. 

Optimum load-deflection properties, i.e. high load capacity and large static deflections can be provided within acceptable space envelope limitations.

The range illustrated below caters for static vertical loads and deflections up to 50kN and 40mm respectively, which are typically suitable for many primary suspension requirements. 

These springs may also be considered for secondary suspensions and power unit applications. 
Conical springs generally provide the same stiffness rates in the principal horizontal modes but alternative designs with disimilar horizontal stiffness rates can be produced.

Technical Specification

Primary Conical Spring 20 - 40 mm Vertical Deflection

Product  No
17-2083
17-1888 17-2105

 Vertical Load

 (kN)

8.5 17 24.8
 Vertical Deflection
 (mm)
20 20 20
 Vertical Stiffness
 (kN/mm)
0.42 0.84 1.21
 Lateral Stiffness
 (kN/mm)
3.4 2.3 2.3
 Longitudinal Stiffness
 (kN/mm)
3.4 2.3 2.3
 Dimension A  (mm)
185 185 150
 Dimension B
 (mm)
153 153 143
 Dimension C
 (mm)
38 38 41
 Dimension D
 (mm)
55 55 -
 Unit Mass   (kg)
7.3 10.5 5.25

Primary Conical Spring 21- 40 mm Vertical Deflection 

Product  No
17-1053
17-2047 17-1817 17-1836

 Vertical Load

 (kN)

14 31 51 34 
 Vertical Deflection
 (mm)
23 32 34 38 
 Vertical Stiffness
 (kN/mm)
0.6 3.6 1.5 0.9 
 Lateral Stiffness
 (kN/mm)
0.8 4 * 9.5 
 Longitudinal Stiffness
 (kN/mm)
0.8 4 * 9.5 
 Dimension A  (mm)
207 260 293 275 
 Dimension B
 (mm)
118 319 282 243 
 Dimension C
 (mm)
54 103 132 103 
 Dimension D
 (mm)
79 - 90
 Unit Mass   (kg)
7.2 24.5 38.5 30 
Primary Conical Spring Diagram
Primary Conical Characteristics

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