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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.
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Diameter S-1 (in)

Part Number

Diameter S-1

Assembly Standout B

Pillow Block Housing Number 500

Pillow Block Housing Number 600

V-Ring Seal

O-Ring

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N/A 4 15/16 in N/A 1 1/16 in N/A 528 N/A 628 N/A V-130-A N/A 2-254
N/A 4 1/2 in N/A 1 1/16 in N/A 526 N/A 626 N/A V-110-A N/A 2-250
N/A 4 7/16 in N/A 1 1/16 in N/A 526 N/A 626 N/A V-110-A N/A 2-250
N/A 4 3/16 in N/A 1 1/16 in N/A 524 N/A 624 N/A V-110-A N/A 2-248
N/A 3 15/16 in N/A 1 in N/A 522 N/A 622 N/A V-100-A N/A 2-246
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