Timken JLM104910 Differential Pinion Race

Timken JLM104910 Differential Pinion Race

The Timken JLM104910 differential pinion race is a tapered roller bearing cup built for driveline and axle service where radial and axial load control matter. It is used in a wide range of rear, front inner, and rear inner applications across BMW, Toyota, Ford, Jeep, Chevrolet, GMC, Dodge, Lexus, Land Rover, Porsche, and Maserati vehicles.

With an outside diameter of 82.00 mm and a width of 17.00 mm, this Timken bearing race is engineered for precise fitment in compact axle and differential assemblies. The JLM104910 part number is also cross-referenced by National JLM104910 for the same application.

Key Features

• Timken tapered roller bearing component for differential and axle service
• Outside diameter: 82.00 mm (3.228 in.)
• Width: 17.00 mm (0.669 in.)
• Bearing cup radius: 0.50 mm (0.020 in.)
• Built to handle both radial and axial loads in driveline applications
• Used in rear, front inner, rear inner, and rear outer positions depending on vehicle application

Detailed Description

Timken JLM104910 is a differential pinion race for tapered roller bearing assemblies. Timken’s bearing engineering focuses on durability, load handling, and long service life in compact spaces, making this race a strong match for axle and differential rebuilds where accurate bearing geometry is critical. For service work, the cone and cup should be replaced together to maintain reliability and bearing life. This part number is commonly searched for BMW 540i rear, BMW M5 rear, Toyota Land Cruiser front inner and rear inner, and Ford F-250 front inner applications.

What It Helps Address

• Noise from worn differential or axle bearings
• Excessive bearing play in pinion or axle assemblies
• Rough rotation caused by damaged bearing races
• Premature wear in high-load driveline service
• Fitment issues during differential or axle rebuilds

Installation Notes and Tips

• Verify the bearing dimensions and position before installation.
• Replace the matching cone and cup together for proper bearing service.
• Inspect the pinion, axle housing, and related bearing surfaces for wear before assembly.
• Use correct bearing installation practices to avoid damaging the race.
• Confirm vehicle-specific fitment for the exact rear, front inner, rear inner, or rear outer application.

Quality Assurance

Timken is a recognized global leader in tapered roller bearings, with engineering support focused on driveline durability and load management. The JLM104910 is built to Timken’s bearing standards for consistent performance in demanding axle and differential applications.