Compression spring LLS series

linear wavewaveflat

Linear wave spring LLS series — Carbon steel or Stainless steel

Description:
Linear wave springs are continuous wave-formed strips designed to provide axial spring force with reduced working height and compact installation envelope. Manufactured from flattened strip, they offer predictable load-deflection behavior and consistent spring rate within the allowable deformation range. Compared with stamped wave springs, LLS linear wave springs use pre-tempered strip and rounded edges for improved dimensional stability and repeatability.

Main features:

• Form: continuous wave formed from flat strip
• Typical thickness: 0.012 in
• Widths available: 0.188 in and 0.25 in
• Standard lengths shown: 1.5, 3, 4.5, 6 in
• Number of waves: 1 to 4 (per part number)
• Reduced working height vs. round-wire springs — space- and material-saving
• Predictable load and spring rate suitable for precision assemblies

Materials:

• Oil tempered carbon steel (SAE1070–1090)
• Hard drawn carbon steel (SAE1060–1075)
• Stainless steels: 304, 316, 631, 17-7PH (SUS)
• Beryllium copper, phosphor bronze
• 65Mn, A-286
• High-performance alloys: Inconel (X-750, X-718), Elgiloy, Monel K-500 / 400

Surface treatments:

• Bluing / oxidation (black or blue oxide film)
• Phosphating
• Electroplating
• Electrophoresis (E-coating)

Processing steps:

• Design & engineering
• Profile drawing & material selection
• Wire flattening
• CNC forming / machining
• Heat treatment (tempering/quenching as required)
• Surface treatment
• Finishing and deburring
• Quality inspection
• Packing

Specifications (examples)
Part Number | Number of Waves | Thickness (in) | Width (in) | Length (in) | Free Height (in) | Load (lb) | Work Height (in) | Spring Rate (in/lb)
LLS12188-1 | 1 | 0.012 | 0.188 | 1.5 | 0.225 | 1.5 | 0.125 | 11
LLS12188-2 | 2 | 0.012 | 0.188 | 3 | 0.225 | 5.6 | 0.125 | 91
LLS12188-3 | 3 | 0.012 | 0.188 | 4.5 | 0.225 | 10.4 | 0.125 | 136
LLS12188-4 | 4 | 0.012 | 0.188 | 6 | 0.225 | 14.8 | 0.125 | 182
LLS12250-1 | 1 | 0.012 | 0.25 | 1.5 | 0.225 | 2.2 | 0.125 | 15
LLS12250-2 | 2 | 0.012 | 0.25 | 3 | 0.225 | 7.8 | 0.125 | 121
LLS12250-3 | 3 | 0.012 | 0.25 | 4.5 | 0.225 | 13.9 | 0.125 | 181
LLS12250-4 | 4 | 0.012 | 0.25 | 6 | 0.225 | 19.8 | 0.125 | 242

Measurements & documentation:
Reference dimensional diagram and measurement definitions are available on request or in the product documentation. Provide required tolerances and application conditions to receive a tailored recommendation.

Applications / Technical notes:

• Typical sectors: aerospace, precision machinery, hydraulic seals, high-end motors
• Suitable where installation space and weight are constrained
• Select material and surface treatment based on operating temperature and corrosion environment
• Specify part number and number of waves to match required load/work height characteristics