Timken 11590 Steering Knuckle Bearing - Front, Front Lower or Front Upper

Timken 11590 Steering Knuckle Bearing

The Timken 11590 steering knuckle bearing is a tapered roller bearing component built for front steering and suspension service where radial and axial load control matter. It is used across Land Rover Discovery, Freelander, Range Rover, Defender 90, and Defender 110 applications, along with select Ford, Jeep, Chevrolet, and GMC front axle setups.

Key Features

• Tapered roller bearing design for combined radial and axial load handling
• Inside diameter: 0.625 in. / 15.88 mm
• Cone width: 0.563 in. / 14.29 mm
• Cone radius: 0.059 in. / 1.50 mm
• Front steering knuckle bearing for service on Dana/Spicer axle applications
• Cross-references BBB Industries 11590 and SKF BR11590

Detailed Description

Timken 11590 is a steering knuckle bearing engineered as a tapered roller bearing component for front-end service. Timken tapered roller bearings are built to manage both radial and axial loads, which is important in steering knuckle and front axle locations where load direction changes during turning and braking. This part number is used in front applications for Land Rover Discovery, Freelander, Range Rover, Defender 90, and Defender 110 models, and also appears in classic Ford Bronco, Ford F-250, Jeep CJ5, Chevrolet Blazer, Chevrolet K10 Suburban, Chevrolet K20 Suburban, and GMC Jimmy front axle configurations. If you are replacing a front steering knuckle bearing on a Land Rover Discovery or a Dana/Spicer axle-equipped truck or SUV, Timken 11590 provides the dimensional fit needed for the repair.

What It Helps Fix

• Front wheel looseness or play related to worn steering knuckle bearings
• Noise from a worn tapered roller bearing in the front axle assembly
• Uneven steering feel caused by bearing wear at the knuckle
• Excessive movement in Dana/Spicer front axle steering components
• Service issues on Land Rover front steering knuckle bearing applications

Installation Notes

Replace the inner cone and outer cup at the same time to help restore proper bearing life and reliability. Verify inside diameter, cone width, and cone radius against the original bearing before installation. This part is used in front positions only, including front upper and front lower locations where listed in the fitment data. For Land Rover Discovery, Range Rover, and Defender 90 front service, confirm the axle and steering knuckle configuration before assembly.

Quality Assurance

Timken is a recognized global manufacturer of tapered roller bearings, with engineering focused on load capacity, durability, and compact packaging. Part number 11590 is built to Timken dimensional standards for steering knuckle and front axle bearing service.