Is it possible to repack belt pulley bearings? Yes, it is possible to repack a belt pulley bearing. However, depending on the type of belt pulley and machine it is used on, you may need to remove the outer housing of the belt pulley to get access to the inner race. The same rules apply when repairing gears and or working with bearings: Never exceed the maximum load rating of the components by overloading them and always check for other signs of damage such as excessive play in any gear or bearing.
However, we do not recommend repacking a belt pulley bearing. You will have to disassemble it completely and replace the spring, rollers and balls. These bearings are precision components made from very hard stainless steel. The problem you face is that there is no way to tell exactly how much play is in them when they are failing. What if you assemble one and then find out that it only lasted a couple months? Wouldn’t it be better to replace it with a new bearing?
Can you grease sealed bearings?
Yes, although grease will have to be applied with care. If you’re in a hurry and don’t have the right tool, one sealed bearing may get greased while another doesn’t. Thus, it’s best not to open a sealed bearing at all—grease it right between the cups.
Grease seals are small, rubber O-rings that cover the bearing’s inside diameter. When they begin to wear, they can cause the bearing to become unsealed, allowing grease to escape and dirt and other contaminants to enter the bearing. These contaminants can make it difficult for the lubricating properties of your grease to be effective. In instances where a worn seal cannot be replaced, you can use some techniques to temporarily restore its sealing properties until you replace it completely.
Do sealed bearings leak?
In a word, yes. However, when compared to unsealed bearings they are better.[1] That’s because sealed bearings have a small gap between the steel shell and the balls. This limits the amount of dirt and water getting inside the bearings.
In a informative tone:
Sealed bearings are only sealed on one side. This means that there are gaps to allow grease to be put in, or for dirt/water to get out. This is useful when determining if it will rain as you can check if there is any excess rain that may damage the bike before it becomes exposed. However, with these small gaps come larger amounts of dirt and water which can cause more damage than unsealed bearings would get if left outside in similar weather conditions.
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Can alternator bearings be replaced?
Yes, but it may be best to leave that to a professional auto mechanic. There are many factors that go into repairing an alternator system and you will want to make sure the job is done right the first time.
Are Sealed bearings waterproof?
Sealed bearings are not waterproof. However, they are very durable, and can withstand exposure to most liquids. Some people have used them in kiddie pools, while others have ridden through waterfalls. It is important to note that water temperature has an effect on how long the bearings can remain submerged before they begin to malfunction.
Can you grease shielded bearings?
Grease shields protect a bearing from contamination by water and contaminants that can shorten a bearing’s life. The shield also keeps debris out of the rolling elements to prevent premature wear. Grease shields are critical in preventing corrosion and ensuring high quality, long lasting performance with minimal maintenance.
Can I replace the pulley on an alternator?
In most cases, yes. You will need to loosen the tensioner and remove it from the alternator. Be sure to replace the belt as well.
If you want to take on the task of replacing the pulley on your alternator, the two places where you can do it are in the engine compartment or at a workbench. If you prefer to do it at a workbench, first remove the alternator from your car. Then place it in a vise with soft jaws. Do not damage any of its mounting holes, as you will need them later. Then remove the slack adjuster lock nut using a wrench and loosen the adjustment screw so there is no tension on the belt. Remove any other bolts that may be holding things in place then break off any unnecessary brackets that interfere with removal of assembly parts.
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What happens if alternator pulley breaks?
You’ll need a new alternator to plug back into your original powertrain cooler line. However, if you have a direct-fit vehicle replacement or a universal system with an in-line power cord and connector, that is a viable option as well
Can you clean car pulleys?
Yes, you can clean car pulleys. According to the maintenance manual of your car, you need to clean the pulley and the attached parts at least once a month. To do this, wash the components with soap and water and wipe dry with a clean rag.
How do you clean a rubber belt?
It depends on what type of belt it is and what it’s been exposed to. If you have the time and the equipment at home, you can clean your rubber belt by removing it from the machine and washing it in a bucket with warm water and dishwashing liquid (never use oil-based solvents). Otherwise, if you have one available, run the belt through an ultrasonic cleaner using warm water as well.
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Is it possible to repack belt pulley bearings?
We do not recommend repacking a belt pulley bearing. You will have to disassemble it completely and replace the spring, rollers and balls. These bearings are precision components made from very hard stainless steel. The problem you face is that there is no way to tell exactly how much play is in them when they are failing. What if you assemble one and then find out that it only lasted a couple months? Wouldn’t it be better to replace it with a new bearing?
Now lets go back to the question, Is it possible to repack belt pulley bearings? Yes, it is possible to repack a belt pulley bearing. However, depending on the type of belt pulley and machine it is used on, you may need to remove the outer housing of the belt pulley to get access to the inner race. The same rules apply when repairing gears and or working with bearings: Never exceed the maximum load rating of the components by overloading them and always check for other signs of damage such as excessive play in any gear or bearing.
Click here to read Can I use Silicon spray on fan belt?
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