Slowly pump grease into bearings every few seconds. Using a quick-lever action could cause seal damage and not allow the grease to distribute throughout the bearing correctly.

This excessive pressure can also damage single and double-shielded bearings, causing the shields facing the grease supply to collapse into the bearing race and leading to wear and eventually failure. When too much pressure is generated from a grease gun due to overgreasing, it is easy for the hard, crusty grease formed from heat (high operating temperatures) to be broken apart and sent directly into the bearing track.

Types ofgrease bearings

Seal damage is another negative side effect of overgreasing. Grease guns can produce up to 15,000 psi, and when you overgrease a bearing housing, the lip seals can rupture, allowing contaminants such as water and dirt to gain access into the bearing housing. Keep in mind that lip seals usually fail around 500 psi. Read Lip Seals - A Practical Guide for more about this topic.

Greasing the bearing cavity with the correct calculated volume of grease while slowly adding each shot to minimize excessive pressure build-up.

A wheel bearing is a set of steel balls held together in a metal ring called a race. The race is located inside the hub, and each wheel has one. At the center of the wheel is a hollow piece of metal called a hub. The wheel bearings fit tightly inside this hub and ride on a metal axle shaft, helping reduce friction when the wheel spins.

When it comes to regreasing bearings, more is not always the better option and actually can be a costly mistake. Instead, greasing should be set on a frequency with proper calculations used to determine the amount of grease needed at each relubrication. The determining factor for the amount required is based on the dimensions of the bearing or the bearing housing.

Tire balancing is an important component of your routine automotive maintenance schedule. Like changing the oil, balancing the tires is something that vehicle owners are encouraged to do several times throughout the course of the year. This is also something you’ll want to make sure to have done by automotive service professionals. There are […]

Grease bearingschart

Overgreasing electric motor cavities has the same effect as with any bearing application except that grease can reach the motor windings. When filled completely with grease, an electric motor bearing will generate excessive heat due to churning. This results in energy loss as well as an accelerated rate of oil bleed and hardening of the grease thickener.

The best advice is to head to your nearest auto shop that offers wheel repair and replacement services. If you’re on the road, slow down steadily and avoid turning rapidly. If you drive long distances on a bad wheel bearing, you’ll eventually lose control of the vehicle, and the wheel will stop suddenly.

How togreasea bearing with agreasegun

Overgreasing can lead to high operating temperatures, collapsed seals and in the case of greased electric motors, energy loss and failures. The best ways to avoid these problems are to establish a maintenance program, use calculations to determine the correct lubricant amount and frequency of relubrication, and utilize feedback instruments.

Wheel BearingGrease

While most estimates suggest wheel bearings should last between 75,000 and 150,000 miles, the actual lifespan depends on:

Ball bearinggrease

Always make sure exhaust ports are cleaned out from any debris or old, hard crust that could be blocking the passageway.

Should you invest the time and money required to have your vehicle’s suspension lowered? It’s a question that many drivers never even think about. Before you make the decision to proceed with lowering your vehicle’s suspension, consider the options and understand the pros and cons that a lowered suspension entails. Why Get a […]

High Speed Bearing Oil

Again, the high pressure applied from a grease gun can result in grease finding its way between the shaft and inner bearing cap and pressing into the inside of the motor. The result over time is the coating of the electric motor windings with grease, which leads to both winding insulation and bearing failures.

Next, calibrate all grease guns in use and train the technicians on the proper procedures of usage. Calibrating a grease gun is very simple. All you need are the grease gun and a postal scale. Determining the weight in ounces per full stroke (shot) of the grease gun will allow you to identify the number of shots it takes to equal 1 ounce of grease. This will help you establish the right volume needed to ensure you are delivering the precise amount at each use.

The heat that has been generated over time along with the oil bleed eventually will cook the grease thickener into a hard, crusty build-up that can impair proper lubrication and even block new grease from reaching the core of the bearing. This can result in accelerated wear of the rolling elements and then component failure.

Most people are aware of the need for general car maintenance. It’s essential to take care of the basics, like regular oil changes and checking battery terminals for corrosion. But, getting an alignment is just as important. Many think it’s simply a minor irritation when your alignment starts to get off. The truth […]

Setting up a maintenance program is key to solving the problem of overgreasing. Each lube point, whether it be a bearing housing or electric motor, should be tracked as an asset, and records kept for scheduling planned maintenance or inspections of the asset. While the initial setup of a maintenance system may take some time and hard work, the end results will have a major impact.

Once you have planned the scheduling of the assets, you will need to determine the timing and amount of grease (volume) that should be applied at each point. The volume can be calculated with a simple equation (ref. SKF):

Establishing appropriate procedures and inspections during relubrication is another important part of a maintenance program. Some basic steps include:

Grease bearingsreplacement

If you notice signs of a bad wheel bearing, visit your nearest Meineke location. Once you bring your vehicle to us, we’ll perform a thorough diagnosis to honestly determine if a replacement is necessary.

Allowing the motor to run during and after greasing to expel any excess grease. This should be done before re-installing the purge port or bottom grease relief valve and cleaning the area of any excess grease.

After you have determined the correct volume, it’s time to establish the proper frequency. There are several methods for estimating a regreasing frequency, including multiple calculators, tables and charts. Use our handy regreasing volume and frequency calculator for help. The major factors in determining frequency are load, operation time, type of bearing, speed, temperature and environment.

You already know your car cannot function safely without sturdy and properly fit wheels. A wheel is complex, and several components must be integrated for it to function safely—including the bearings.

Bearinggreasetypes and grades

If you want to know how to check for a bad wheel bearing, place your car on a jack stand, grip your hands on the 6 and 12 o’clock positions of the tire, and then spin the wheel to see if it wiggles. It’s also a great way to learn how to tell which wheel bearing is bad.

Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures. This leads to rapid oxidation (chemical degradation) of the grease as well as an accelerated rate of oil bleed, which is a separation of the oil from the thickener.

If you’re driving on the highway and a wheel breaks off, it’s because a wheel bearing failed. What are the signs of a bad wheel bearing, and what can you do about it? Here, we explore wheel bearings, including what they are, how they work, and how to tell if they’re about to fall off.

Keep in mind that wheel bearings are not the same as engine bearings, as there is no constant source of lubrication for wheel bearings. This means they must be tight enough to keep water and road dust out. They also support the entire vehicle weight while driving, so they endure abuse from rough roads and potholes, as well as lateral forces when turning.

The amount of miles your vehicle can endure will depend on how extensive the damage is and the conditions on the road. If you’re concerned about replacement costs, note that the average estimate for a replacement is about $350 for each bearing.

Feedback tools can also be beneficial for fine-tuning your frequency. For example, ultrasonic instrumentation is one of the best ways to optimize the correct frequency and help you set up your maintenance program.