Corrugated gravel roads, unpaved mining access tracks, and relentless road vibrations destroy standard vulcanized rubber suspension bushings within months. When rubber decomposes, control arm alignment shifts, destroying commercial vehicle tires and stressing steering linkages.
Polyurethane vs Natural Rubber
Polyurethane elastomers provide significant engineering advantages for severe service vehicles:
- Tear and Abrasion Resistance: Polyurethane exhibits up to 5 times greater tensile strength and 10 times higher abrasion resistance than natural rubber.
- Chemical and Oil Immunity: Rubber softens and rots when exposed to leaked engine oil, diesel, or road grime. Polyurethane is chemically inert to hydrocarbons and ozone.
- Shore Hardness Tuning: Specify Shore 80A for compliant cab mounts, Shore 85A for road suspensions, or Shore 95A for high-rigidity anti-roll bar pivots.
Rapid Prototyping with Engineering TPU
For custom retrofits or discontinued heavy machinery where mold tooling is uneconomical:
- Direct 3D Printing in TPU 95A: Print functional replacement isolators with 100% solid infill on industrial additive systems in 24 hours.
- Internal Lubrication Grooves: Design spiral grease retention channels directly into CAD models to ensure squeak-free operation with synthetic lithium grease.
Upgrade Your Equipment Suspension
FamilyMake manufactures prototype and low-volume elastomer dampeners for automotive fleets, mining machinery, and vibrating industrial screens.
