National 207-FF Manual Transmission Countershaft Bearing - Front or Rear

Overview of National 207-FF Manual Transmission Countershaft Bearing

The National 207-FF is a precision-engineered manual transmission countershaft bearing designed for reliable performance in select Dodge, Hyundai, and Mitsubishi vehicles. This ball bearing supports smooth rotation and durability in models such as the Dodge Ram 1500, Hyundai Pony, and Mitsubishi Raider.

• Single row radial design for efficient load handling
• Inner race bore diameter of 1.378 inches (35 mm)
• Outer race outside diameter of 2.835 inches (72 mm)
• Width of 0.669 inches (17 mm) for compact fitment
• Inner and outer race radius of 0.040 inches (1.02 mm) for precise seating
• Series 200, Type A-9 ball bearing construction

Technical Specifications and Design Features

The National 207-FF manual transmission countershaft bearing features a single row radial ball bearing design optimized for countershaft applications. The inner race bore measures 1.378 inches (35 mm), matching the shaft diameter for a secure fit. Both the inner and outer races have a radius of 0.040 inches (1.02 mm), which helps reduce stress concentrations and extends bearing life. The outer race diameter is 2.835 inches (72 mm), and the bearing width is 0.669 inches (17 mm), making it suitable for compact transmission assemblies. This bearing belongs to the Series 200 and Type A-9 classification, ensuring compatibility with specific manual transmission systems.

Compatible Vehicles and Applications

This National 207-FF bearing is compatible with manual transmissions in several vehicle models, including:

• Dodge Ram 1500 and Dakota
• Hyundai Pony and Stellar
• Mitsubishi Raider

It is designed to support the countershaft, a critical component in manual transmissions, by reducing friction and wear during gear rotation.

Common Issues Addressed by the 207-FF Bearing

• Excessive noise or grinding in the manual transmission
• Premature wear of transmission countershaft components
• Vibration or rough shifting due to bearing failure
• Reduced transmission efficiency from increased friction
• Potential transmission overheating caused by bearing degradation

Installation Notes and Tips

• Ensure the transmission is clean and free of debris before installation
• Use proper tools to press the bearing onto the countershaft without damaging the races
• Verify correct orientation and seating of the bearing within the transmission housing
• Check for smooth rotation after installation to confirm proper fit
• Consult vehicle-specific service manuals for torque specifications and procedures

Quality Assurance and Warranty Information

National bearings are manufactured to meet industry standards for durability and precision. The 207-FF manual transmission countershaft bearing undergoes rigorous quality control to ensure consistent performance. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability.