How do I install an oil sealed bearing? How to remove the bearing rubber seal

Step 1: Place the sponge sheath at both ends of the section and apply about the grease evenly around the inner circumference as shown in the figure below.

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Step 2: Seal the opening oil.

Break the suit and rotating shaft from the splitting place, remove the sponge sheath, and evenly apply DSF-specific adhesive to the lower section of the oil seal.

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Step 3: Butt the split surface, press it moderately and keep it for 10-20 seconds until the cut is firmly bonded. Bonding essentials: Pull the operator with appropriate force while pressing the section in the opposite direction.

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Step 4: Tighten the spring butt into the open oil seal spring groove.

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Step 5: Rotate the split to directly above the shaft, and knock the oil seal evenly into the mounting hole, and the installation is completed. Note: The oil seal positioning step must be close to the end face of the equipment to ensure the perpendicularity between the oil seal and the shaft.

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a. The sealing chamber should be kept filled with liquid before starting. For conveying solidified media, the sealing chamber should be heated with steam to melt the medium. It must be coiled before starting to prevent the soft ring from shattering due to sudden starting.

b. For the mechanical seal that uses the external oil sealing system of the pump, the oil sealing system should be started first. The oil sealing system is stopped at the end of the shutdown.

c. After the hot oil pump is stopped, the cooling water of the sealing chamber and the end seal can not be stopped immediately, and the cooling water can only be stopped when the oil temperature at the end seal drops below 80 degrees, so as not to damage the sealing parts.

3. Operation. a. If there is a slight leakage after the pump is started, it should be observed for a period of time. If the leakage does not decrease after 4 hours of continuous operation, the pump should be stopped for inspection.

b. The operating pressure of the pump should be stable, and the pressure fluctuation should not be greater than 1 kg square centimeter.

c. During the operation of the pump, the phenomenon of evacuation should be avoided, so as not to cause dry friction on the sealing surface and seal damage.

d. The sealing situation should be checked frequently. In operation, when the leakage exceeds the standard, the heavy oil is not more than 5 drops, the light oil is not more than 10 points, if there is no improvement trend within 2-3 days, the pump should be stopped to check the sealing device.

Proper installation of oil seals

1. When the oil seal of the installation seal passes through the position with a key, the key should be removed first and then the oil seal should be installed.

2. When the oil seal is installed, oil or lubricating oil should be applied, and the shaft end and shoulder of the oil seal should be rounded.

3. Fix the guide shaft to the front section of the crankshaft of the engine with three hexagon bolts, and use an Allen wrench to drive it in.

4. When installing the oil seal, install the pressure plate to the guide shaft, turn the nut with a movable wrench, and make sure that the lip end of the oil seal is facing the side of the oil to be sealed, and avoid reverse assembly of the oil seal.

5. Various measures should be taken to prevent damage to the lip of the oil seal at the thread, keyway, spline and other places through the lip of the oil seal, and the oil seal should be assembled with special tools.

6. When installing the oil seal, it is not allowed to knock with a hammer, pry it with a change cone, and the shaft journal of the oil seal should have a corresponding chamfer, and repair the burr, so as not to cut the lip when installing the oil seal.

7. When installing the oil seal, you can apply some oil on the journal, and gently press the oil seal into it with a suitable special tool to prevent the oil seal from deformation. Once the lip of the oil seal is found to be flapped, the oil seal must be removed and reinstalled.

8. When the elasticity of the oil seal is insufficient or the lip is not necessarily worn, the spring ring of the oil seal can be cut short and then reinstalled, or the two ends of the oil seal spring ring can be overlapped with one more section to increase the elasticity of the oil seal spring, thereby increasing the pressure of the oil seal lip on the journal and improving the sealing of the oil seal.

Recently, I often receive questions from friends about "how to install wheel bearing oil seals?" Now I will explain it to you. First of all, remove the half-shaft assembly, use a screwdriver to buckle the flange plug cover, and then remove the card inside, and then remove the flange to replace the wheel bearing oil seal.

If the wheel bearing is broken, it will affect the comfort of the aftersound, the vehicle will deviate, the tire noise will become larger, and the heavy will cause suspension damage, so that the steering system will fail and traffic accidents will occur. Methods for judging the failure of automobile wheel bearings:

1. After increasing the speed of the vehicle (when the buzzing sound is larger), the gear position is in neutral gear to let the vehicle slide, and observe whether the noise comes from the engine, if the buzzing sound does not change when the neutral gear slides, it is most likely that there is a problem with the wheel bearing;

2. Temporarily stop first, get out of the car to check whether the temperature of the wheel axle is normal, the method is: touch the four wheels with your hands, and roughly feel whether their temperature is the same (when the brake shoes and blade clearance are normal, there is a gap between the temperature of the front and rear wheels, and the front wheels should be higher), if you feel that the difference is not big, you can continue to drive slowly to the maintenance station;

3. Use the elevator to lift the car (before releasing the hand hydraulic brake and hanging neutral gear), when there is no lift, you can use the jack to lift the wheels one by one, and the manpower quickly rotates the four wheels respectively, when encountering the problem of the axle, it will make a sound, which is completely different from other axles, and it is easy to distinguish which axle has a problem with this method.

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First of all, remove the half-shaft assembly, use a screwdriver to buckle the flange plug cover, and then remove the card inside, and then remove the flange to replace the wheel bearing oil seal. If the wheel bearing is broken, it will affect the comfort, the vehicle will deviate, the tire noise will become larger, and the heavy will cause suspension damage, so that the steering system will fail and traffic accidents will occur. Methods for judging the failure of automobile wheel bearings:

1. After increasing the speed of the vehicle (when the hum is louder), the gear position is in neutral gear to let the vehicle slide, observe whether the noise comes from the engine, if the hum does not change when coasting in neutral gear, it is most likely that there is a problem with the wheel bearing;

2. Temporarily stop first, get out of the car to check whether the temperature of the wheel axle is normal, the method is: touch the four wheels with your hands, and roughly feel whether their temperature is the same (when the brake shoes and blade clearance are normal, there is a gap between the temperature of the front and rear wheels, and the front wheels should be higher), if you feel that the difference is not big, you can continue to drive slowly to the maintenance station;

3. Use the elevator to lift the car (before releasing the handbrake and hanging neutral), when there is no lift, you can use the jack to lift the wheels one by one, and the manpower quickly rotates the four wheels respectively.

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Summary. Dear, I am glad to answer for you: Answer: The roller bearing oil seal can be installed in this way, and the sponge sheath is set at both ends of the section, and the grease is evenly applied around the inner circumference.

Break the open oil seal from the split between the suit and the rotating shaft, remove the sponge sheath, and evenly apply DSF...Butt to the split surface, press moderately and keep it for 10-20 seconds until the cut is firmly bonded. Tighten the spring butt into the open oil seal spring groove.

How to install the oil seal of the drum bearing?

Dear, I am glad to answer for you: Answer: The roller bearing oil seal can be installed in this way, and the sponge sheath is set at both ends of the section, and the grease is evenly applied around the inner circumference. Break the open oil seal from the split between the suit and the rotating shaft, remove the sponge sheath, and evenly apply DSF...

Butt to the split surface, press moderately and keep it for 10-20 seconds until the cut is firmly bonded. Tighten the spring butt into the open oil seal spring groove.

Can't hear voice.

Is the oil seal facing the bearing face or reverse bearing?

When the hydraulic shock absorbing seal ring is assembled, the opening can not be smoothed outward, one to the left and one to the right, and the motorcycle rear wheel bearing should be the same on both sides.

I'm talking about the drum washing machine oil seal press, is it concave outward or inward?

Inward-facing.

Bearing glue oil seal removal method:

The rubber oil seal is a thin iron sheet inside, and a layer of nitrile rubber is sprayed on the outside. Wipe a layer on the inner wall of the oil seal;

Rubber Sealed Cover:

1. Non-contact early disassembly rubber sealing cover: mainly to prevent rough dust, and the silent effect is better than that of steel sealing cover;

2. Contact rubber sealing cover: It can be used to prevent solid foreign bodies and liquid foreign bodies, and the disadvantage is that the bearing speed is slightly lower than that of non-contact sealing covers.