1. Product Overview
The SMC CG-T050 Trunnion Mounting Hardware is an essential accessory designed for use with SMC CG/CG3 Round Body Cylinders. This kit provides the necessary components for securely mounting a 50mm CG series actuator, ensuring stable and reliable operation within industrial pneumatic systems. It is specifically identified as PN: CG-T050 and CG9Z22.

Figure 1.1: The SMC CG-T050 Trunnion Mounting Hardware as supplied in its original packaging. This image shows the main component, a trunnion, along with its identification label.
Key features of this mounting hardware include:
- PRODUCT LINE: ACTUATOR
- PRODUCT FAMILY: CG/CG3 ROUND BODY CYLINDER
- PRODUCT CLASS: 50MM CG KIT/ACCESSORY
- SMC PART DESCRIPTION: TRUNNION, MOUNTING HARDWARE
2. Setup and Installation
Proper installation of the CG-T050 trunnion mounting hardware is critical for the safe and effective operation of your pneumatic cylinder. This hardware is designed to provide a pivot point for the cylinder, allowing for angular movement.

Figure 2.1: Individual components of the CG-T050 kit, typically including the trunnion pin, nuts, and washers. These parts are used to secure the cylinder to a mounting surface.
2.1 Pre-Installation Checklist
- Verify that the CG-T050 hardware is compatible with your specific CG/CG3 Round Body Cylinder (50mm class).
- Ensure all components (trunnion, nuts, washers) are present and undamaged.
- Prepare the mounting surface, ensuring it is clean, flat, and capable of supporting the cylinder's weight and operational forces.
2.2 Installation Steps
- Identify the designated mounting points on your CG/CG3 cylinder for the trunnion.
- Insert the trunnion pin through the cylinder's mounting holes.
- Secure the trunnion to the cylinder using the provided nuts and washers. Ensure fasteners are tightened to the manufacturer's recommended torque specifications (refer to your cylinder's manual for specific values).
- Mount the assembled cylinder and trunnion to your equipment's frame or bracket. Ensure proper alignment and freedom of movement for the cylinder's intended operation.
- Perform a visual inspection to confirm all connections are secure and there is no interference with other machine components.
3. Operating Considerations
While the trunnion mounting hardware itself does not have operational controls, its proper installation directly impacts the performance and longevity of the pneumatic cylinder. Ensure that the cylinder, once mounted, operates smoothly through its full range of motion without binding or excessive friction at the trunnion pivot points.
- Load Distribution: Ensure that the load applied to the cylinder is within its rated capacity and is distributed evenly to prevent undue stress on the trunnion mounting.
- Clearance: Verify that there is adequate clearance around the trunnion and cylinder throughout its entire stroke to prevent collisions with other machine parts.
- Vibration: In applications with high vibration, periodically check the tightness of all mounting fasteners to prevent loosening.
4. Maintenance
Regular maintenance of the trunnion mounting hardware helps ensure the continued reliability and safety of your pneumatic system. Although the CG-T050 is a robust component, periodic checks are recommended.
4.1 Inspection Schedule
- Monthly: Visually inspect the trunnion and its mounting points for any signs of wear, corrosion, or damage.
- Quarterly: Check the tightness of all nuts and bolts securing the trunnion to the cylinder and the mounting surface. Re-torque if necessary according to cylinder specifications.
- Annually: For high-cycle applications, consider a more thorough inspection for fatigue or excessive play in the pivot points.
4.2 Cleaning and Lubrication
- Keep the trunnion and surrounding area clean from dust, debris, and corrosive substances. Use a clean, dry cloth.
- If the application requires, apply a thin layer of appropriate grease to the pivot points to reduce friction and prevent corrosion. Consult the cylinder's manual for lubrication recommendations.
5. Troubleshooting
This section addresses common issues related to the trunnion mounting hardware. For issues related to the pneumatic cylinder itself, refer to the cylinder's specific instruction manual.
| Problem | Possible Cause | Solution |
|---|---|---|
| Cylinder binding or restricted movement at pivot. |
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| Excessive play or looseness in mounting. |
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| Unusual noise (e.g., squeaking) from pivot. |
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6. Specifications
The following specifications pertain to the SMC CG-T050 Trunnion Mounting Hardware:

Figure 6.1: A closer view of the trunnion components, highlighting their robust construction suitable for industrial applications.
| Attribute | Detail |
|---|---|
| Part Number | CG-T050 (CG9Z22) |
| Product Line | ACTUATOR |
| Product Family | CG/CG3 ROUND BODY CYLINDER |
| Product Class | 50MM CG KIT/ACCESSORY |
| SMC Part Description | TRUNNION, MOUNTING HARDWARE |
| Product Dimensions | 2 x 2 x 2 inches |
| Item Weight | 4 ounces |
| Manufacturer | SMC |
| ASIN | B00DD70IV8 |
| Date First Available | April 1, 2014 |
7. Warranty and Support
For specific warranty information regarding the SMC CG-T050 Trunnion Mounting Hardware, please refer to the official SMC warranty policy or contact SMC directly. Warranty terms typically cover manufacturing defects under normal use conditions.
For technical support, product inquiries, or to purchase replacement parts, please visit the official SMC website or contact their customer service department. You can find more information and contact details on the SMC Brand Store on Amazon or their corporate website.
