Machine dynamics
Springs, Shock Absorbers & Vibration Isolation replacement guide
Replace compression, extension, torsion, gas, die, and constant-force springs plus industrial shock absorbers, dampers, bumpers, mounts, isolators, and vibration-control components by force, travel, geometry, and energy duty.
Evidence boundary. Dynamic components must match force and energy behavior, not only length or thread. Verify travel, rate, velocity, cycle, mounting, environment, and failure behavior.
Items covered01 · 13 component types
- Compression springs
- Extension springs
- Torsion springs
- Die springs
- Gas springs
- Disc springs
- Industrial shock absorbers
- Industrial dampers
- Vibration mounts
- Machine mounts
- Rubber bumpers
- Spring isolators
- Elastomer isolators
What to capture02
Component type, manufacturer, model, and mounting styleRecord this before searching for a substitute.
Free length, compressed length, stroke, diameter, end fittings, and orientationRecord this before searching for a substitute.
Spring rate, force curve, load, velocity, and energy per cycleRecord this before searching for a substitute.
Cycle rate, temperature, corrosion, contamination, and side loadRecord this before searching for a substitute.
Mounting, preload, rebound, damping, and fail-safe requirementsRecord this before searching for a substitute.
What must match03
Force or spring-rate curveConfirm it against the original equipment, duty, and source documentation.
Stroke, travel, compressed length, and mountingConfirm it against the original equipment, duty, and source documentation.
Energy capacity, velocity, and cycle rateConfirm it against the original equipment, duty, and source documentation.
Temperature, corrosion, contamination, and side loadConfirm it against the original equipment, duty, and source documentation.
Damping, rebound, preload, and machine safetyConfirm it against the original equipment, duty, and source documentation.
Common searches04
What spring replaces this one?
How do I size a replacement industrial shock absorber?
What vibration mount fits this machine?
Can a gas spring with the same length replace mine?
Authoritative starting points05