BECA 315

BECA 315
beca_315_3d_v1
beca_315_3d_v2

Description

The BECA 315 profile is a single acting buffer rod seal composed of a profiled polyurethane triple lip seal and a POM back-up ring on the back.

Advantages

Primary seal
Low friction coefficient
Excellent abrasion resistance
Excellent extrusion resistance

Technical data

Temperature

-30°C/+110°C

Pressure

40 MPa
Peak at 60 MPa

Speed

0.5 m/s

Medias

Mineral hydraulic oils

Applications

Agriculture
Mobile machinery
Injection presses
Hydraulic cylinders

Materials

Profiled seal

PU 93 Shore A - Blue
PU 96 Shore A - Blue
High temp. PU 96 Shore A - Beige

Back-up ring

Polyoxymethylene (POM)

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint buffer - Housing Groove Buffer seal - BECA 315

Materials

PU

Polyurethane is a material that has the elastic properties of rubber. The proportion in its composition (diisocyanate, polyol, chain extender) is determined by its properties. This material is characterised by a strong mechanical resistance, good wear resistance, high elastic modulus, good flexibility and a very good ozone and oxidation resistance.

Chemical resistance Pure aliphatic hydrocarbons (propane, butane)
Mineral oils and greases
Silicone oils and greases
Water up to +50°C
Compatibility issue Ketones, esters, ethers, alcohols and glycols
Hot water, steam, alkalis, amines and acids
Temperature range -30°C/+90°C
-30°C / +110°C with our PUHT (short term peak at 150°C)

Polyoxymethylene - POM

Polyoxymethylene (POM or polyacetal) belongs to the thermoplastics, which have a number of advantages - strong mechanical resistance, good creep strength, high resistance to shocks, particularly at low temperatures, good wear resistance, good sliding coefficient, excellent machinability and good dielectric properties. The low water absorption coefficient, unlike polyamide (PA), also gives this material an excellent dimensional stability.

Chemical resistance

Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Water

Compatibility issue Acids
Temperature range -50°C/+115°C

Technical data

Housing Groove Buffer Seal - BECA 315

Extrusion gaps

Radial section
S
Radial extrusion gap
F/2
15 MPa 25 MPa 30 MPa 40 MPa
≤ 7.75 0.60 0.50 0.40 0.35
≤ 10.00 0.70 0.60 0.50 0.40

Surface roughness

Roughness Dynamic surface area Static surface area Groove flanks
Ra 0.1 - 0.4 µm ≤ 1.6 µm ≤ 3.2 µm
Rz 0.63 - 2.5 µm ≤ 6.3 µm ≤ 10.0 µm
Rmax 1.0 - 4.0 µm ≤ 10.0 µm ≤ 16.0 µm

Chamfers and radius

Radial section
S
Radius
R1
Radius
R2
Chamfer
C
7.50 - 7.75 0.80 1.00 4.00
10.00 0.80 1.00 5.00
12 dimensions found
315.0560719
Standard request
56,00 71,00 8,50 9,50
315.0650806
Standard request
65,00 80,50 6,00 6,30
315.0700852
Standard request
70,00 85,00 12,50 13,50
315.0700859
Standard request
70,00 85,00 8,50 9,50
315.0750906
Standard request
75,00 90,50 6,00 6,30
315.0750909
Standard request
75,00 90,00 9,50 10,50
315.0800953
Standard request
80,00 95,00 12,50 13,50
315.0800956
Standard request
80,00 95,00 6,00 6,30
315.0800959
Standard request
80,00 95,00 8,50 9,50
315.0901059
Standard request
90,00 105,00 8,50 9,50
315.0951107
Standard request
95,00 110,00 6,00 7,00
315.1001201
Standard request
100,00 120,00 11,50 12,50