Pack wheel bearings
The term “packing wheel bearings” is often used to describe the activity of putting grease within the bearings components prior to fitting them so that they are well lubricated and are free from wear, dirt, and moisture. This activity greatly enhances the endurance and ensures functionality of wheel bearings, which is critical for every motorcycle, car or other vehicle with wheel hubs that should have the bearings serviced on regular basis.
Here’s why you should pack your wheel bearings:
- Lubrication: Wheels rotate which creates a lot of pressure and friction on the bearings. The use of grease reduces friction therefore making it easy for the bearings to rotate while preventing excessive wear.
- Protection from Contaminants: Grease works as a sort of wall which shields the bearings from dust, dirt, and water that are present on the roads, hence preventing rust and corrosion.
- Prevent Overheating: Properly packed bearings are able to stay cooler, and this is vital in vehicles that operate at very high speed or that are heavily loaded
- Improves lifespan: When grease is packed in bearings, the chances of contaminants reaching the bearing surfaces are very much reduced. This in turn prolongs the life of the bearings and enhances the functionality of the vehicle.
How to Pack Bearings into the Wheels?
In most cases, it is a very simple process, but one must remain focused throughout the process to ensure proper lubrication of the bearings. Here’s how to do it:
- Remove the Bearings:
- For Motorcycles/ Other Vehicles: P akow MGH (one of the fishing in the sages region) The primary objective is to pack the wheel mounted on the wheel hub. AS 18 This may include a couple of bearing pulling devices or a hammer and punch depending on how the wheel hub is constructed.
- Clean the Bearings:
- Before packing, old grease and grime should be wiped off the bearings if they have any. You can use a solvent or a bearing cleaning agent to clean them.
- If applicable, please check the bearings for excessive wear or cracks. If they are worn out, it would not be a surprise to see them replaced.
- Apply the Grease:
- Hand Packing Method: This is the method that people use the most – it is not in the hand tools section but the hand packing section.
- Using a finger, pick out a small amount of grease out of the jar. Make sure you do not touch it again once a little chunk is picked up – to avoid making a mess out of it.
- Using your fingers, press the bearing into the grease and make sure that the grease penetrates every inner part of the bearing as well as the spaces between the balls and the races.
- While still in the bearing’s notch, continue to turn the bearing while immersing it in the grease so that all bearing surfaces are greased. It is important to keep adding grease up to the point that it starts spilling out from both end of the bearing.
- Grease Gun Method: Most of the times, large trucks or high performance vehicles use a grease gun instead of packing bearings with hand. In this case you would use a bearing with a grease fitting and pack it with grease until it starts to ooze out.
- Using the Appropriate Method, Install the Bearings:
- Make sure that bearings that have been greased are sufficiency planted back into a wheel hub or axle and are accurately seated and aligned.
- After reattaching the wheel hub or axle assembly back on the vehicle, make sure that the bearings are tight and any seals or dust caps are in the correct position in order to prevent dirt ingress and grease egress.
- Apply Grease to the Seals (Optional but Recommended):
- But it is also recommended to place a thin layer of grease on seals or dust caps such as the ones placed on wheel bearing caps taking into consideration that dirt particles will not get inside the bearing and the grease will be replenished with time.
Types of Grease Used for Packing Wheel Bearings:
Grease contains a few crucial components that are critical to the working conditions and lifetime of your wheel bearings. Makes sure to look for the following:
- Lithium-Based Grease: Perhaps the most popular type, lithium based grease used in wheel bearings has a very good properties of high temperature, water and oxidation resistors
- Synthetic Grease: They are the best in extreme conditions (high temperature, high load or use in off the road). Compared to its counterparts, synthetic greases have a longer life span and are more effective at high speed or extreme performance environments.
- Marine Grease: Best suitable for wet or water environments, (e.g., boat or motorcycle used in rainy areas). Marine greases are specially designed synthetic greases that prevent water from being eroded easily.
- High Temperature Grease: This is for high performance cars or cars that are subjected to extreme temperatures such as high racing motorcycles, if using high temperature grease with higher operating limits in the working environment.
Signs That Bearings Need Repacking:
- Unusual Sound: If there is a grinding or squeaking sound coming from the side of the wheel, then it is a sign that either the bearings are dry or damaged.
- Too Much Play: If the wheel is still wobbling even after being fitted, it means either the bearings have too much space between them or are worn out.
- Heated Up: Failing to lubricate the bearings will allow them to heat up resulting in huge damage or even complete failure of the bearings.
- Corrosion/Rust: If there are signs of corrosion or rust around the bearing, it means that there has been an entry of contaminants or water and therefore grease has to be replaced.
In what frequency will you pack wheel bearings?
- Motorcycles/Scooters: Depending on the type of bike and the conditions you ride in, you may need to pack wheel bearings every 12, 000 – 15, 000 miles, but if wet and muddy conditions prevail, sooner.
- Cars and Trucks: Regular packing or repacking of the wheel bearings should be carried out after every 20, 000 up to 30, 000 miles while servicing the vehicle or checking the brakes.
Conclusion:
The use of wheel bearing grease is a critical aspect of grease that has got more important things to do – lubricating the wheel bearings which will keep your vehicle’s wheels spinning, safeguard against dirt and ensure the bearings have a long life. Packing true applies to any machine that has wheel bearings like a bike, scooter or any other modular vehicle. It essentially means putting a suitable grease, in this case, yes, quite a lot of it, on and in the bearings prior to reinstallation. If you’re not equipped to do so, at least have the bearings done once a year to avoid them from going bad and further save costs and avoid any disinterest in your vehicle’s drivability or safety.