English
Back-up Ring Type BD / concave, cut is a high-performance support ring designed to prevent seal extrusion in high-pressure applications. Featuring a concave profile and a cut design for easy installation, it is used behind O-Rings to enhance sealing reliability. Ideal for static and dynamic applications, this back-up ring offers excellent pressure resistance and extends seal life in hydraulic and pneumatic systems.
BU Concave cut OD:
Ring Width1.7 mm
Ring Diameter Outside125 mm
Ring Diameter Inside116.4 mm
TSS Article Number (3 to 9)4301250
Signature StandardBD4301250-PTGB4
Type of Article0
Quality (10th Digit)-
Root Ring Inside Diameter116.4 mm
Article GroupBD
Root Ring Outside Diameter125 mm
Root Ring Thickness4.3 mm
Root Ring Width1.7 mm
Ring Thickness4.3 mm
Compound codePTGB4
Material Information for the product(s) on this page
PTGB4
Gravity Unit:
g/cm³
Hardness Tolerance:
+/- 5
Gravity Tolerance:
+/-0.04
Minimum Temperature:
-200
Material:
PTGB4
Material Code Class:
Thermoplastic
Material Type:
PTFE
Color:
White
Maximum Temperature:
260
Hardness unit:
Shore D
Minimum Hardness:
58
Specific Gravity:
2.21
Maximum Hardness:
58
Shore D Hardness:
58+/- 5