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  • Suggested for pillow blocks used in extremely contaminated environments, such as taconite mines.
  • Provides protection against residual and airborne contaminants that exceeds the triple labyrinth shaft seal.
  • Contributes significantly to extending bearing life; reduces costs by helping prevent premature bearing damage.
  • Because of its unique design, no special finish is required on the shaft. DUSTAC is a patented device utilizing a V-shaped nitrile ring that rotates with the shaft and applies pressure to the cartridge face to exclude contaminates.
HU Accessories OH Hydraulic Adapter Sleeve image
Inch DUSTAC™ Shaft Seal
Unit of Measure
1 2 

Part Number

Diameter S-1

Assembly Standout B

Pillow Block Housing Number 500

Pillow Block Housing Number 600

V-Ring Seal

O-Ring

DV-710 N/A 10 1/2 in N/A 1 3/4 in N/A N/A N/A V-275-A N/A 2-372
DV-825 N/A 11 in N/A 1 3/4 in N/A N/A N/A V-275-A N/A 2-378
DV-818 N/A 12 in N/A 1 3/4 in N/A N/A N/A V-300-A N/A 2-382
DV-866 N/A 12 1/2 in N/A 1 3/4 in N/A N/A N/A V-325-A N/A 2-383
DV-846 N/A 13 in N/A 1 51/64 in N/A N/A N/A V-325-A N/A 2-383
Unit of Measure
1 2