English
Stefa® Radial Shaft Seal, commonly known as radial oil seals or rotary shaft lip seals, are precision-engineered components designed to seal between rotating shafts and stationary housings. They feature a flexible elastomer lip bonded to a rigid metal case and energized by a garter spring for consistent sealing force. They offer a proven balance of sealing reliability, friction control, and application flexibility, with a selection of variants to match cleanroom, high-speed, high-pressure, or contaminant-rich environments. Global support ensures optimized performance, reduced downtime, and easier maintenance across your systems. This is a Custom Article Number with a Customer Specific Design.
Rotary/Rad.OilSeal-metr.:
Signature StandardTRYD0002754N91
Type of Article1
Article Code with 6 char275
Root Groove Inside Diameter20 mm
Root Groove Outside Diameter28.5 mm
Compound code4N91
Groove Diameter Inside20 mm
Groove Diameter Outside28.5 mm
Ring Thickness3.5 mm
Article GroupTR
Location MarkYD
Root Ring Thickness3.5 mm
Material Information for the product(s) on this page
4N9
Hardness unit:
Shore A
Shore A Hardness:
85+/- 5
Material Type:
NBR
Material:
4N9
Color:
Black
Maximum Hardness:
85
Minimum Temperature:
-25
Gravity Unit:
g/cm³
Specific Gravity:
1.39
Gravity Tolerance:
+/-0.03
Hardness Tolerance:
+/- 5
Maximum Temperature:
100
Material Code Class:
Elastomer
Minimum Hardness:
85