English
Type BP Back-up Rings have a rectangular cross section and are made from PTFE materials. The cut angle is either 30˚ or 45˚. It consists of standard two spiral windings which are cut at the ends at an angle. It can be used in static or dynamic applications with reciprocating movements possible. Preferred for installations in closed grooves where uncut Back-up Rings are not suitable. It can compensate large temperature changes and tolerances through a screw-like elongation and contraction.
BU Rectangular spiral:
Signature StandardBP22H00305PT008
Article Code with 6 charH00305
Type of Article1
Root Ring Inside Diameter30.5 mm
Compound codePT008
Ring Diameter Inside30.5 mm
Root Ring Width2.25 mm
Article GroupBP
Location Mark22
Ring Thickness0.7 mm
Ring Width2.25 mm
Root Ring Thickness0.7 mm
Material Information for the product(s) on this page
PT008
Minimum Hardness:
55
Gravity Unit:
g/cm³
Hardness unit:
Shore D
Material Code Class:
Thermoplastic
Gravity Tolerance:
+/-0.04
Minimum Temperature:
-200
Color:
White
Shore D Hardness:
55+/- 5
Maximum Hardness:
55
Material Type:
PTFE
Maximum Temperature:
260
Specific Gravity:
2.16
Material:
PT008
Hardness Tolerance:
+/- 5