Timken 18790 Tapered Roller Bearing Cone

Product Description

The TIMKEN 18790 is a tapered roller bearing cone designed to handle both radial and axial loads in demanding mechanical applications. As the inner race assembly of a tapered roller bearing set, the cone works in conjunction with a matching outer cup to support shaft rotation under heavy-duty conditions. It is engineered for higher rotational speeds, heavier load capacity, and extended service life compared to standard bearing designs. Weighing 0.557 pounds and measuring approximately 3.33 inches in length, 3.33 inches in width, and 1.05 inches in height, this cone is a compact, precision-grade component. Installation is typically performed by drivetrain technicians, automotive mechanics, and industrial maintenance professionals.

The TIMKEN 18790 bearing cone is suited for automotive drivetrain and axle applications. Application data indicates fitment for rear-wheel-drive vehicles including cars from 1978 to 1992, as well as trucks spanning multiple model years from 1946 through 1969, and roller and steering applications from 1959 through 1992. It is sold as a single cone unit. When servicing a bearing assembly, both the cone and the mating cup should be replaced together to restore full performance and maximize bearing longevity.

Key Features

• Tapered roller design manages simultaneous radial and axial load demands
• Engineered for higher speeds and heavier loads compared to standard bearing types
• Compact geometry delivers maximum durability in minimal space
• Precision-manufactured cone mates with a corresponding tapered roller cup
• Sold as a single cone (EA); cup should be replaced concurrently for best results

Compatibility

Application data from the input indicates fitment for rear-wheel-drive cars (1978-1992), trucks at 3/4-ton rating (1946-1969) and 1-ton rating (1968-1969), and roller and steering assemblies (1959-1992). Verify the matching cup part number before ordering to ensure a complete bearing replacement.

Installation Notes

Bearing cone replacement is typically performed by qualified drivetrain or mechanical technicians. Always shut down and de-energize or safely support the vehicle or equipment before beginning work. Use a proper bearing press or driver set to seat the cone without striking the rolling elements or raceway surfaces directly. Replace the mating cup at the same time to avoid mismatched wear patterns and premature failure.