E/PWR 280 X 274 X 19,2

Acetal piston guide rings
Operating conditions
Temperature: -30°C ...+110°C
Speed:= 1 m/s
Fluids: Hydraulic fluids (mineral oil based), water emulsions
Compression strength: 20°C=130 N/mm² / 100°C=40 N/mm²
Material: Acetal plastic
Installation
The guide ring is stretched open when assembled into the groove
Advantages
- Easy to assembly and manufacturing of the sealing groove
- High mechanical durability
- Low static and dynamic friction (friction coefficient 0,05-0,1 on a lubricated steel surface)
- Wide dimension range
Calculating radial load
FR = (D x L x q / v )x n
FR= maximum radial load (N)
q = compression strength at operating temperature for the given compound (N/mm)
D x L = diameter x seal width (mm)
n = number of rings
v = confidence coefficient (recommendation> 3)