| Load | Rubber too soft can bottom out; too hard may not isolate vibration. | Static load, impact load, equipment weight, quantity per machine | rubber vibration isolator load |
| Hardness | Shore A affects compression, rebound and support feel. | Known hardness or target softness/stiffness | rubber mount Shore A hardness |
| Mounting | Hole, insert and bracket design control installation and durability. | Hole size, thread, metal insert, bracket photo, installation direction | custom rubber mounts |
| Environment | Oil, water, UV, heat and chemicals change material choice. | Temperature, oil/fuel contact, outdoor exposure, water or chemicals | industrial rubber dampers |
| Geometry | Shape controls deflection, stress and production tooling. | Drawing, sample, OD, ID, height, groove, lip, radius and tolerance | custom rubber shock absorber |