Graco 117632 Square Key 3/16 x 1-1/4 Inch
$5.25
In Stock
The Graco 117632 Square Key (3/16" x 1-1/4") ensures secure shaft connection and precise torque transfer in Graco sprayers, enhancing reliability and mechanical stability.
- Part Number: 117632
- Size: 3/16" x 1-1/4"
- Material: Hardened Alloy Steel
- Use: Shaft-to-coupling torque transfer
- Fits: Mark V, Ultra Max II, GMAX II, RTX 1500
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Genuine OEM Part
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Graco 117632 Square Key – Compatibility, Features & Technical Details
Compatible Machines
- Graco Mark V
- Graco Ultra Max II 695 / 795 / 1095
- Graco GMAX II 3900 / 5900
- Graco RTX 1500
Product Overview
The Graco 117632 Square Key (3/16" x 1-1/4") is a precision-engineered alignment component used in Graco airless sprayers for secure torque transmission between shafts and couplings. It ensures accurate rotational engagement, superior durability, and consistent performance under high-pressure applications.
Key Specifications
| Specification | Details |
|---|---|
| Part Number | 117632 |
| Dimensions | 3/16" x 1-1/4" |
| Material | AISI 4140 Chromoly Alloy Steel |
| Hardness | 48–52 HRC |
| Surface Finish | Phosphate Coated and Passivated |
| Static Load Capacity | 2,500 N |
| Torsional Rigidity | 45 N·m |
Performance Features
- Ensures precise torque transmission in high-pressure systems.
- Maintains alignment and rotational accuracy in pump assemblies.
- Resists wear, fatigue, and corrosion for extended service life.
- Supports consistent pump efficiency under variable flow conditions.
- Engineered to DIN 6885 standards for dimensional reliability.
Installation & Maintenance Tips
- Clean keyway and shaft bore before installation.
- Apply anti-seize compound to reduce fretting and corrosion.
- Inspect for wear every 1,000 operational hours or during pump rebuilds.
- Replace immediately if visible deformation or pitting occurs.
Frequently Asked Questions
The 117632 Square Key transmits torque between the drive shaft and coupling, ensuring reliable mechanical engagement in airless sprayers.
Compatible with Graco Mark V, Ultra Max II 695 / 795 / 1095, GMAX II 3900 / 5900, and RTX 1500 airless sprayers.
Replace the square key every 1,000 operating hours or when wear, cracking, or looseness is detected to maintain optimal performance.
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