Tech Tip: Procedures for Packing a Tapered Roller Bearing with Grease

Tech Tip: Procedures for Packing a Tapered Roller Bearing with Grease

The useful life of a tapered roller bearing depends to a great extent on the proper lubrication of the bearing. This is especially true in wheel bearings where operating conditions include dirt, moisture and high and low temperatures. Lubricants aid in carrying away heat, protecting bearing surfaces from corrosion and reducing friction.

Maximizing bearing performance and life remains an objective throughout The Timken Company, from design teams and manufacturing associates to our field sales team and distributors. TechTips help you install and maintain Timken bearings, seals and components to maximize their life and performance and the systems in which they operate. For more information regarding Timken automotive products and services, visit www.timken.com or contact your local Timken distributor.

The useful life of a tapered roller bearing depends to a great extent on the proper lubrication of the bearing. This is especially true in wheel bearings where operating conditions include dirt, moisture and high and low temperatures. Lubricants aid in carrying away heat, protecting bearing surfaces from corrosion and reducing friction.

By Hand
1) Thoroughly clean your hands or put on a new pair of latex gloves.

2) Place grease, approximately the size of a golf ball, into the palm of one of your hands.

3) Using your opposite hand, push the large end of the bearing cone assembly into the grease. This enables the grease to be forced between the rollers, cage and cone.

4) Continue pushing grease into the large end, rotating the entire cone assembly, until the grease is forced out evenly
around the entire small end.

5) Smear excess grease on the outside of the bearing cone assembly.

Using A Mechanical Grease Packer
1) Thoroughly clean your hands or put on a new pair of latex gloves.

2) Place the bearing cone assembly, small end down, into the grease packer funnel.

3) Plug the bore of the large end of the bearing cone assembly with the conical retainer.

4) Firmly press down on the conical retainer. This enables the grease to be forced between the rollers, cage and cone.

5) Smear excess grease on the outside of the bearing cone assembly.

NOTE:
For best results, ample space is essential in the housing to allow room for excess grease to be thrown from the bearing and for heat dissipation. It is equally important to retain the grease around the bearing. Normally,the housing should be 1/3 to no more than 1/2 full of grease during bearing assembly. Too much grease in the housing may cause excess churning of the grease and high temperatures.

Tech Tip courtesy of The Timken Company.

You May Also Like

Chassis Alignment

The source of the complaint can be the angles, electronics or tires.

Chassis alignment can be an art when you have to resolve a chassis or steering complaint from a customer. The source of the complaint can be the angles, electronics or tires. The diagnostic process can be more challenging than curing a misfire or no-start problem.

Your alignment bay should be treated as a colossal scan tool that can pull the angles from the vehicle so they can be used for chassis and suspension diagnostics. Performing camber and toe adjustments are just like calibrating a sensor, but the process is, of course, completely mechanical.

Laying Out Your Shop for ADAS/EV Repairs

With so many vehicles equipped with some form of ADAS, rethinking your electronics layout or plan might be in order.

Broken Springs

What is the cause for the failure? Why does it occur with specific vehicles?

The Importance Of ADAS Calibrations

Following best practices and using appropriate equipment ensure customer satisfaction and safety.

Why Do Vehicles Go Out Of Alignment

If camber, caster or toe are out of specifications, there is usually a reason why.

Other Posts

Subaru Eyesight Calibration

All ADAS calibration procedures should start with the same steps no matter the make or the tools used for calibration.

Diagnosing Active Roll Bars

Roll bars on modern vehicles are often a compromise between stability and comfort.

Mercedes Airmatic Suspensions

Diagnostic tips to aid your repair efforts.

Active Ride Control Diagnostics

The key to servicing these systems is having proper information.