National 205-FF Manual Transmission Countershaft Bearing - Front, Rear or Rear Inner

Overview of National 205-FF Manual Transmission Countershaft Bearing

The National 205-FF is a precision-engineered manual transmission countershaft bearing designed for reliable performance in various vehicle models including Chevrolet, Ford, Mazda, and Toyota. This single row radial ball bearing ensures smooth operation and durability in demanding transmission applications.

• Single row radial design for efficient load handling
• Bore diameter of 0.984 inches (25.000 mm) for precise fitment
• Outer diameter of 2.047 inches (52.000 mm) with 0.591 inch (15.000 mm) width
• Inner and outer race radii of 0.040 inches (1.020 mm) for optimized stress distribution
• Compatible with multiple makes and models including Mazda MX-5 Miata and Ford Escort

Technical Specifications and Design Features

The National 205-FF bearing features a single row radial ball bearing design, which is ideal for supporting radial loads in manual transmission countershafts. The bore size of 0.984 inches (25 mm) matches the inner race bore, ensuring a secure and accurate fit. Both the inner and outer races have a width of 0.591 inches (15 mm), providing balanced load distribution and stability during operation. The outer race outside diameter measures 2.047 inches (52 mm), making it suitable for a range of transmission housings. The inner and outer race radii of 0.040 inches (1.020 mm) help reduce stress concentrations, contributing to longer bearing life.

Compatible Vehicles and Applications

This manual transmission countershaft bearing is compatible with a variety of vehicles, including Chevrolet Caprice, Ford Escort, Mazda RX-7, Toyota Land Cruiser, and Isuzu B2000. It is designed to meet the demands of manual transmissions in these models, ensuring smooth gear engagement and reducing wear on transmission components.

• Supports smooth countershaft rotation in manual transmissions
• Reduces friction and wear in transmission assemblies
• Helps prevent transmission noise and vibration issues
• Addresses bearing wear and failure in older or high-mileage vehicles
• Restores proper alignment and function of transmission shafts

Installation Notes and Tips

When installing the National 205-FF bearing, ensure the transmission countershaft and housing are clean and free of debris. Use appropriate tools to press the bearing into place without applying excessive force that could damage the races. Verify the bearing is seated evenly and rotates smoothly before reassembling the transmission. Proper lubrication during installation is recommended to enhance bearing performance and longevity.

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and precision. The 205-FF bearing undergoes rigorous quality control to ensure consistent performance in manual transmission applications. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability.