109-6925
RING-BACKUP
High-pressure seal backup ring.
Description
Installed directly behind primary O-rings to eliminate clearance gaps when line pressures surge. The rigid profile prevents softer elastomers from extruding into the gap between mating metal surfaces, reducing seal fatigue and fluid bypass. Supports…
Overview
Installed directly behind primary O-rings to eliminate clearance gaps when line pressures surge. The rigid profile prevents softer elastomers from extruding into the gap between mating metal surfaces, reducing seal fatigue and fluid bypass.
Features
- Supports primary O-rings against high cyclic loads
- Tight profile tolerance to prevent extrusion
- High shear and wear resistance
Applications
- Hydraulic pumps
- cylinder packings
- control valves
- dynamic engine fluid circuits
Specifications
| Brand | Caterpillar |
|---|
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