Type BB Back-up Rings have a concave cross section and are made from either PTFE or NBR or FKM materials. The large contact surface protects the O-Ring against deformation in case of high pulsating pressures. Dimensional stability of the O-Ring improves the sealing force and increases the service life. Static use if preferable and reciprocating movement is possible.
BU Concave solid ID:
TSS Article Number (3 to 9)P80B239
Signature StandardBBP80B239-N962N
Type of Article0
Quality (10th Digit)-
Root Ring Inside Diameter92.23 mm
Ring Diameter Outside98.23 mm
Compound codeN962N
Ring Diameter Inside92.23 mm
Root Ring Outside Diameter98.23 mm
Article GroupBB
Ring Thickness1.02 mm
Root Ring Thickness1.02 mm
Material Information for the product(s) on this page
N962N
Specific Gravity:
1.42
Maximum Temperature:
100
Gravity Unit:
g/cm³
Minimum Temperature:
-25
Hardness Tolerance:
+/- 5
Shore A Hardness:
90+/- 5
Minimum Hardness:
90
Material:
N962N
Gravity Tolerance:
+/-0.02
Material Code Class:
Elastomer
Material Type:
NBR
Color:
Black
Maximum Hardness:
90
Hardness unit:
Shore A