National 205 Manual Transmission Countershaft Bearing

Overview of National 205 Manual Transmission Countershaft Bearing

The National 205 manual transmission countershaft bearing is engineered for reliable performance in a variety of vehicles including Chrysler, Dodge, Ford, Hyundai, Jeep, Mazda, Mitsubishi, and Nissan models. Designed as a single row radial ball bearing, it supports smooth rotation and durability in manual transmission systems.

• Single row radial design for efficient load handling
• Inner race bore diameter of 0.984 inches (25.000 mm)
• Outer race outside diameter of 2.047 inches (52.000 mm)
• Width of 0.591 inches (15.000 mm) for compact fitment
• Compatible with multiple vehicle makes and models including 240SX, Charger, Wrangler, and RX-7

Technical Specifications and Design Features

The National 205 bearing features a precise inner race bore of 0.984 inches (25 mm) and an outer race diameter of 2.047 inches (52 mm), ensuring a secure fit on the countershaft. The bearing’s width measures 0.591 inches (15 mm), making it suitable for tight transmission assemblies. Both the inner and outer races have a radius of 0.040 inches (1.020 mm), contributing to the bearing’s structural integrity and smooth operation. This ball bearing is part of the 200 series and classified as type A-1, designed specifically for manual transmission countershafts.

Compatible Vehicles and Applications

This National 205 bearing is compatible with a wide range of manual transmission vehicles. It fits models such as the Nissan 240SX, 300ZX, and Frontier, Dodge Charger and Challenger, Jeep Wrangler and Cherokee, Ford Ranger and Power Ram 50, Mazda RX-7 and B2000, Mitsubishi Lancer and Mighty Max, Hyundai Stellar, and Chrysler Town & Country and New Yorker. The bearing is ideal for replacing worn or damaged countershaft bearings in these vehicles to restore transmission performance.

• Eliminates noise and vibration caused by worn bearings
• Prevents transmission shaft misalignment
• Reduces wear on transmission gears and components
• Improves shifting smoothness and reliability
• Addresses bearing failure symptoms such as grinding or rough rotation

Installation Notes and Tips

When installing the National 205 manual transmission countershaft bearing, ensure the transmission is clean and free of debris. Use proper tools to press the bearing onto the countershaft without applying excessive force that could damage the races. Verify the bearing is seated evenly and rotates smoothly before reassembling the transmission. It is recommended to inspect related transmission components for wear during installation.

Quality Assurance and Warranty

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