National 614018 Clutch Release Bearing

Overview of National 614018 Clutch Release Bearing

The National 614018 clutch release bearing is engineered for reliable performance in a range of GM vehicles including Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. Designed as a sealed self-aligning bearing, it ensures smooth clutch operation and durability under demanding driving conditions.

• Sealed self-aligning design for consistent alignment and reduced wear
• Bore diameter of 1.378 inches (34.989 mm) for precise fitment
• Outside diameter measures 2.760 inches (70.104 mm)
• Width of 1.246 inches (31.651 mm) for compact installation
• Part of the CRBA series, type G-1 clutch release bearing assembly

Technical Specifications and Design Features

The National 614018 clutch release bearing features a sealed self-aligning design that accommodates minor misalignments between the clutch fork and the transmission input shaft. This design reduces premature wear and extends the service life of the bearing. With a bore size of 1.378 inches (34.989 mm) and an outside diameter of 2.760 inches (70.104 mm), this bearing fits precisely within the clutch assembly. The width of 1.246 inches (31.651 mm) allows for a compact and efficient installation in various GM truck and car models.

Compatible Vehicles and Applications

This clutch release bearing assembly is compatible with a wide range of General Motors vehicles, including:

• Buick models such as Century, LeSabre, and Regal
• Chevrolet trucks and cars including C10, C1500, Camaro, Caprice, and Corvette
• GMC trucks like C2500, K1500, and S10 Blazer
• Oldsmobile models including Cutlass, Delta 88, and 98
• Pontiac vehicles such as Firebird, Grand Prix, and GTO

Part number 614018 is designed to meet the specifications required for these vehicles, ensuring proper clutch engagement and release.

Common Issues Addressed by the Clutch Release Bearing

• Eliminates clutch chatter and vibration caused by worn bearings
• Prevents premature clutch wear due to misalignment
• Reduces noise during clutch operation
• Improves clutch pedal feel and responsiveness
• Helps avoid transmission input shaft damage

Installation Notes and Tips

When installing the National 614018 clutch release bearing, ensure the clutch fork and bearing surfaces are clean and free of debris. Proper lubrication of the bearing contact points is recommended to maintain smooth operation. Verify the bearing is correctly seated on the transmission input shaft and aligned with the clutch fork to prevent uneven wear. It is advisable to inspect the entire clutch assembly during installation for any additional wear or damage.

Quality Assurance and Warranty Information

National clutch release bearings are manufactured to meet industry standards for durability and performance. The 614018 bearing undergoes rigorous quality control to ensure consistent dimensions and reliable operation. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's longevity and function.