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Graco 118139 Helical Gear Conversion Bracket

The Graco 118139 Bracket, Helical Gear, Conv. ensures precise gear alignment and stable operation in high-pressure fluid systems. Key features include:

  • Compatible with Graco ProXcite, HydraMax, EnduraFlow series, and related kits
  • High-strength alloy steel with nitrided bearing bores
  • Optimized gear spacing for reduced backlash and efficient operation
  • Supports continuous pressures up to 15,000 psi
  • Easy maintenance with lubrication and inspection points

$410.51
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Precision Helical Gear Bracket for Industrial Sprayers

The Graco 118139 Bracket, Helical Gear, Conv. provides reliable alignment and optimized gear meshing for high-performance fluid-handling systems. It ensures stable operation under demanding conditions and simplifies maintenance.

Compatible Machines

  • Graco ProXcite series
  • Graco HydraMax series
  • Graco EnduraFlow series
  • Graco Fluid Plate part numbers 107530 & 115226
  • Graco Helical Gear Meter Conversion Kit 234280

Key Features

  • High-strength alloy steel with nitrided bearing bores
  • Precision CNC-machined surfaces for exact alignment
  • Supports pressures up to 15,000 psi with intermittent spikes to 17,400 psi
  • Integrated port alignment for sensors and filtration attachments
  • Optimized gear spacing reduces backlash and improves pump efficiency
  • Seal integration with PTFE and Viton/EPDM compatibility for long service life

Specifications

Material 4140 Chromoly Steel, hardened & nitrided
Max Continuous Pressure 15,000 psi (1,035 bar)
Intermittent Pressure 17,400 psi (1,200 bar)
Flow Rate Up to 100 L/min ±1%
Tensile Strength >950 MPa
Surface Finish Micro-finished bearing bores Ra 0.4 μm, ceramic-aluminum oxide coated interfaces

Maintenance & Installation

  • Apply high-pressure rated grease to bearing bores during installation
  • Torque all fasteners to 45 Nm per manufacturer specification
  • Regularly backflush filtration screens and inspect gear backlash
  • Lubricate drive coupling with synthetic high-pressure lubricant

Frequently Asked Questions

Compatible with Graco ProXcite, HydraMax, EnduraFlow series, Fluid Plate part numbers 107530 & 115226, and Helical Gear Meter Conversion Kit 234280.

Continuous operation up to 15,000 psi and intermittent spikes up to 17,400 psi.

Regularly lubricate bearing bores, backflush filtration screens, inspect gear backlash, and follow manufacturer torque specs to ensure optimal performance.

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