1. Product Overview
The DODGE P2B-GTAH-100 is a robust two-bolt pillow block bearing designed for reliable performance in various industrial applications. This unit features a non-expansion type bearing, meaning it is intended to fix the shaft axially. The housing is constructed from durable cast iron, providing strength and stability. It is engineered to accommodate a shaft with a 1-inch bore diameter.

Figure 1: DODGE P2B-GTAH-100 Two-Bolt Pillow Block Bearing. This image displays the green cast iron housing with the silver bearing insert visible in the center, designed to accommodate a shaft. Two mounting holes are visible at the base for secure installation.
2. Safety Information
Always prioritize safety when installing, operating, or maintaining industrial equipment. Failure to follow safety precautions can result in serious injury or equipment damage.
- Ensure all power to machinery is disconnected and locked out before installation or maintenance.
- Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and protective footwear.
- Refer to all applicable local and national safety regulations.
- Do not operate the bearing beyond its specified load, speed, or temperature limits.
- Ensure proper lubrication to prevent overheating and premature failure.
- Keep hands and clothing clear of rotating machinery.
3. Components
The DODGE P2B-GTAH-100 pillow block bearing typically consists of the following main components:
- Cast Iron Housing: The robust outer casing that supports the bearing insert and provides mounting points.
- Bearing Insert: The internal component that houses the rolling elements and supports the shaft.
- Set Screws: Used to secure the bearing insert to the shaft.
- Grease Fitting (Zerk): Allows for lubrication of the bearing.
4. Setup and Installation
Proper installation is crucial for the longevity and performance of the bearing unit.
- Prepare Mounting Surface: Ensure the mounting surface is clean, flat, and rigid enough to support the bearing and associated loads.
- Prepare Shaft: Clean the shaft thoroughly. Check for burrs, nicks, or excessive wear that could damage the bearing bore. The shaft diameter should match the bearing's bore diameter (1 inch).
- Mount the Pillow Block: Position the pillow block on the mounting surface. Insert appropriate bolts through the two mounting holes and loosely secure them.
- Position the Shaft: Carefully slide the shaft through the bearing insert. Ensure the shaft is properly aligned with other components in the system.
- Secure to Shaft: Tighten the set screws on the bearing insert evenly and firmly against the shaft. This secures the bearing to the shaft.
- Final Alignment and Tightening: With the shaft secured, ensure the bearing housing is properly aligned. Then, fully tighten the mounting bolts to the recommended torque specifications (refer to specific engineering guidelines for your application).
- Initial Lubrication: If not pre-lubricated, or if specified, apply initial lubrication through the grease fitting.
5. Operating Instructions
Once installed, the DODGE P2B-GTAH-100 bearing operates as part of a larger mechanical system. Ensure the system operates within the design parameters of all components, including the bearing.
- Monitor for unusual noise, vibration, or excessive heat during initial operation and periodically thereafter.
- Ensure the bearing is adequately lubricated according to the maintenance schedule.
- Avoid sudden impacts or overloading the bearing, which can lead to premature failure.
6. Maintenance
Regular maintenance extends the life of the bearing and ensures optimal performance.
- Lubrication:
- Use a high-quality industrial grease compatible with the bearing type and operating conditions.
- Lubrication frequency depends on operating speed, load, temperature, and environmental conditions. Consult a lubrication guide or a qualified engineer for specific recommendations.
- Apply grease through the grease fitting until a slight resistance is felt or a small amount of fresh grease purges from the seals (if applicable). Avoid over-greasing.
- Inspection:
- Periodically inspect the bearing for signs of wear, corrosion, cracks in the housing, or damage to seals.
- Check for proper alignment and ensure mounting bolts and set screws remain tight.
- Listen for unusual noises and feel for excessive vibration or heat.
- Cleaning: Keep the exterior of the bearing and surrounding area clean to prevent contaminants from entering the bearing.
7. Troubleshooting
This section outlines common issues and potential solutions. For complex problems, consult a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Excessive Noise | Lack of lubrication, contamination, misalignment, worn bearing. | Check lubrication, clean, verify alignment, replace if worn. |
| Overheating | Insufficient lubrication, over-lubrication, misalignment, excessive load, tight fit. | Adjust lubrication, check alignment, reduce load, verify shaft fit. |
| Vibration | Misalignment, unbalanced shaft, loose mounting, worn bearing. | Check alignment, balance shaft, tighten mounting, replace if worn. |
| Premature Failure | Improper installation, inadequate lubrication, overloading, contamination. | Review installation steps, ensure proper lubrication, operate within limits, maintain cleanliness. |
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | Dodge |
| Model Number | P2B-GTAH-100 |
| Bearing Number | 129175 |
| Type | Two-Bolt Pillow Block, Non-Expansion |
| Housing Material | Cast Iron |
| Bore Diameter | 1 inch |
| UPC | 782475880232 |
9. Warranty Information
Specific warranty terms and conditions for the DODGE P2B-GTAH-100 bearing are provided by the manufacturer, Dodge. Please refer to the documentation included with your purchase or visit the official Dodge website for detailed warranty coverage, limitations, and claim procedures. Warranty periods typically vary based on product type and region.
10. Support and Contact
For technical assistance, spare parts, or further inquiries regarding the DODGE P2B-GTAH-100 pillow block bearing, please contact the manufacturer directly or your authorized Dodge distributor. You can typically find contact information on the official Dodge website or through your original point of purchase.
Manufacturer: Dodge
Website: Visit the Dodge Store on Amazon (for general brand information, specific technical support may require direct manufacturer contact).





