O-ring seal BECA 500

O-ring seal
O-ring seal
O-ring seal
O-ring seal
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composite, rubber, NBR, PTFE
for aircraft
Other characteristics
static, dynamic, hydraulic
Temperature limit

Max.: 200 °C (392 °F)

Min.: -40 °C (-40 °F)

Pressure limit

Max.: 35 MPa

Min.: 0 MPa


The BECA 500 profile is a double acting composite piston seal composed of a filled PTFE friction ring and a pre-tightened rubber O'Ring. It follows the bore diameters, in line with the standards MIL-G-5514F and AS4716. Advantages Optimal sealing in static and dynamic applications Low friction coefficient; no stick-slip effect Excellent abrasion and extrusion resistance Wide temperature range and excellent chemical resistance, depending on the material selected for the O'Ring Applications Actuators Brakes systems Flight controls Engine systems Landing gear Materials Friction ring Bronze-filled PTFE Carbon-filled PTFE GL Blue PTFE O'Ring NBR 70 Shore A FKM 70 Shore A Speed - 5 m/s Medias - Hydraulic fluids with a mineral oil base Fire retardant hydraulic fluids Bio oils Phosphate esters Water


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