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Graco 113359 Seal Bearing

The Graco 113359 Seal Bearing protects bearings in agitator assemblies and ensures smooth operation. Key features at a glance:

  • OEM Part: Genuine Graco seal
  • Application: Back-gear and drum agitators
  • Durability: Protects bearings from contamination
  • Included in: Bearing Replacement Kit 238251

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Graco 113359 Seal Bearing

The Graco 113359 Seal Bearing is a genuine OEM seal designed to protect the internal needle and thrust bearings within Graco agitator assemblies. Its purpose is to prevent contamination (such as paint, dust, or fluid) from entering the bearing housing while retaining lubrication, thereby extending the life and reliability of the agitator’s rotating shaft.

Key Features

  • Part number: 113359
  • Type: Lip-style bearing seal
  • Application: Bearing protection in agitator gear housings
  • Material: Durable elastomer (or compatible OEM material)
  • Included in: Graco Bearing Replacement Kit (Part 238251)

Compatible Machines

Graco Model Description
26B630 Back-Geared Radial Piston Agitator, heavy duty
26B631 Back-Geared Radial Piston Agitator, heavy duty with siphon kit
26B632 Back-Geared Radial Piston Agitator, heavy duty with elevator & drum cover
26B633 Back-Geared Radial Piston Agitator, heavy duty with elevator, drum cover, and siphon kit
25C483 / 25C484 Electric Back-Gear Drum Agitator models
238-157 (Series A) Heavy-Duty Stainless Steel Drum Agitator (A-Series)

Why Use the Graco 113359 Seal Bearing?

By installing the 113359 seal, you ensure:

  • Longer bearing life: prevents abrasive particles from damaging internal bearings.
  • Smoother operation: retains lubrication in the bearing housing.
  • OEM-quality replacement: compatible with Graco’s bearing replacement kit 238251 for a reliable rebuild.

Installation Advice

  • When replacing the seal, also inspect the needle bearings (e.g., Graco part 190980) and thrust ball bearings (e.g., part 190979) for wear.
  • Use the correct Bearing Replacement Kit (238251) to ensure all related components are replaced together.
  • Be careful not to damage the seal lips when assembling the agitator shaft back into the housing.
  • Clean all mating surfaces before assembly to prevent contamination.

Frequently Asked Questions

The 113359 is a lip-style bearing seal, typically made of a durable elastomer compatible with Graco’s bearing housing. It is designed to retain lubrication and exclude contaminants.

Yes. The 113359 Seal Bearing is available on its own, but for best results and full bearing protection, Graco recommends using the full Bearing Replacement Kit (Part 238251), which includes the seal plus bearings.

It depends on usage and the material being agitated. If you're working with abrasive or solvent-based materials, inspect the seal during every gear-housing service and replace it whenever you replace the bearings, ideally as part of the 238251 Bearing Replacement Kit.

While it’s technically possible to source aftermarket seals, using genuine Graco parts (like the 113359) ensures proper dimensions, material compatibility, and reliability under Graco’s design tolerances. This helps maintain agitator performance and longevity.

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