Labyrinth seals profile

L2


Labyrinth-type seal

Non-contact labyrinth seal designed to exclude light splashing of liquids and/or fine to coarse granular contaminants.

Minimal component wear, minimal frictional loss, and no special preparation of mating surfaces are key advantages of this seal.  High circumferential speeds are possible depending upon application.  Seal retention and improved static sealing performance are improved with O-rings on contacting shaft and housing.  Small quantities are available in 3 days.




Operating Range
MaterialPressureTemperatureSurface SpeedDry-run
Duraloy 5163zero-40 to 170°F (-40 to 80°C)Up to 12,000 fpm (60m/s)YES
Duraloy 1258zero-40 to 400°F (-40 to 200°C)Up to 14,000 fpm (70m/s)YES
Size Table (Inch)Standard sizes listed below are preferred sizes for new design applications; however, we offer any other seal size as required. Seals are available for any shaft diameter size in 0.001 inch increments, including Functional Range.
A
Shaft Diameter
CS
Cross-section
D
Bore Diameter
LLGCR1
Standard Range
Functional RangeToleranceD=ToleranceTol.+0.030/-0
Tol.+/-0.010min.
max.
0.350 - 1.499"0.350 - 12.000"+0/-0.0011/2
A + 1.000+/-.0010.375
0.335
A + 0.500
0.040
0.020
1.500 - 2.999"1.500 - 12.000"+0/-0.001
5/8
A + 1.250+/-.0010.500
0.450
A + 0.625
0.050
0.020
3.000 - 11.999"2.000 - 25.000"+0/-0.0023/4A + 1.500+/-.0010.625
0.560
A + 0.750
0.070
0.020
≥ 12.000"consult AHPSeals engineering
*Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size. Surface finish: Shaft (A) Ra 16-32µin - Housing (D,L) Ra 32-63µin. See Technical Info for more specific information.

Seal Size Selector – Request a Quote

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Seal Housing Drawing