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Grey cast-iron pillow block bearing with double-sealed radial ball insert, 1-inch cylindrical bore, two bolt-through mounting holes

Timken

Timken YAS 1 SGT Pillow Block Bearing 1" Bore

SKU CH-8BA4-DP39E

Pillow block bearing with a 1 in bore, cast-iron housing and double seals operates from -65 to 200 °F

  • TypeBearings, V-belts & Power Transmission Equipment
  • Size3.100
  • 1 in bore fits standard shafts
  • Double-sealed closure keeps contaminants out
  • Cast-iron housing handles heavy loads
  • NGLI #2 lubricant works from -65 °F to 200 °F
  • 5 in overall length suits common mounts

Timken YAS 1 SGT Pillow Block Bearing

The Timken YAS 1 SGT is a pillow block bearing with a one-inch cylindrical bore designed for radial ball applications. It suits maintenance teams and equipment builders who need a cast-iron housed unit for shaft support in industrial machinery. The double-sealed closure helps retain lubricant and exclude contaminants in dirty environments. This unit is not for buyers who need a different bore diameter or a non-pillow-block mounting style.

Double-sealed alloy steel insert

The bearing insert uses alloy steel and ships pre-lubricated with an NGLI #2 equivalent grease rated from minus 65 to 200 degrees Fahrenheit. Double seals on the insert reduce relubrication intervals and protect the rolling elements from dust and moisture. The cast-iron housing provides rigid support for the mounted shaft. This configuration does not help buyers who require a solid-lube or high-temperature specialty fill beyond the stated range.

Check shaft tolerance

Verify that the shaft diameter matches the one-inch bore and that the mounting surface can accommodate two bolt-through holes on a four-and-one-eighth-inch centre-to-centre length. The overall housing length is 5.5 inches and the overall height is 2.859 inches with a base height of .594 inch. Ensure the operating temperature stays within the minus 65 to 200 degree Fahrenheit limits. This unit cannot serve applications needing a different hole pattern or a higher temperature rating.

Highlights

  • 1 in bore fits standard shafts
  • Double-sealed closure keeps contaminants out
  • Cast-iron housing handles heavy loads
  • NGLI #2 lubricant works from -65 °F to 200 °F
  • 5 in overall length suits common mounts

Specifications

BrandTIMKEN
TypeBearings, V-belts & Power Transmission Equipment
Size3.100

Questions about this item

How often should I relubricate the NGLI #2 equivalent grease in this Timken pillow block bearing?

Relubrication intervals depend on operating speed, load and temperature; the factory fill is NGLI #2 equivalent grease rated for -65 to 200 degrees F.

What temperature limit will I reach first if this bearing runs continuously under load?

The maximum continuous operating temperature is 200 degrees F; sustained operation above that can degrade the grease and seals.

How much heat and noise should I expect from the cast-iron housing and double-sealed insert during all-day use?

Cast iron dissipates heat well and the double-sealed radial ball insert runs quietly; normal operating temperature stays below the 200 degree F limit.

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