Question about Quickie Wheelchairs Parts Breezy Ultra 4 Light Weight Wheelchair Quickie

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Bronze sleeve bearing BZU8004 tthe push to lock hemi brake handle has teo small bronze sleeve bearings. I think they are 6x8x8......anyone know where I could find one?

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Hi. Try google and type in the make and model number. Find a dealer who is in your area see if they can order the parts for you.
Good luck. Neil.

Posted on Jun 04, 2010

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Posted on Jan 02, 2017

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This tool was a hand-me-down, and I assume it's been around for a while, so maybe it's on its way out. Most of the time it runs OK, but occasionally it slows way down when it's turned to 5.


If this is a Dremel or knock-off, it may have a phosphor-bronze sleeve shaft bearing, impregnated with graphite for lubrication,
These do wear out and must be occasionally replaced. it isn't difficult to do (on mine) and the sleeve bearing is (or was) not terribly costly.

Establish your model number you should probably read the thread on this here:

Bearing Replacement in Dremel 395

Jun 04, 2015 | Tools & Hardware - Others

1 Answer

Is there a spot to oil the fan when it starts to stick. was off for winter. fan stuck when turned on


The ac would need to be disassembled to get to the motor. The motor may have a plastic plug on each motor end bell where it would be oiled, 10 drops of oil in each bearing if the bearing is a bronze sleeve type. A ball bearing motor would growl or hiss while running.
If the motor or fan rotates freely by hand, then the bearings are not sticking, it would be an electric problem, the capacitor or a weak motor winding.

May 09, 2015 | Heating & Cooling

1 Answer

How to Replace Hilti TE22 chuck


You put the two flat sides on the end of the cap nut and lock them in a vice. You then put a wrench on the back side of the chuck which also has two flat sides. with the cap nut locked in a vise take the wrench and turn the retaining sleeve which has the two flat sides counterclockwise to break the cap nut loose. When it turns freely take the chuck out of the vise and turn the cap nut off. You then push the ribbed locking sleeve down to access an o-ring. You pull that off and it releases the locking sleeve and two roller bearings. You then pull off the retaining slv with the two flat sides and release the other two roller bearings. the chuck will then just pull off the shaft

Hope this helps

Sep 30, 2012 | Hilti TE 7-C 120V Rotary Hammer Drill

1 Answer

520, 2gb card sounds like the berrings are going out in fan. Only a few months old. Is this a reacuring problem are am I just unlucky?


You can actually remove the fan with the spindle and clean the spindle and the bearing sleeve and apply a thin grease to them and reassemble.

Remove the fan from the heatsink if it's attatched to one.
Remove the label there should be a little split washer holding the spindle in the bearing sleeve. It is removable with a thin blade. Then push the spindle and fan out of the bearing sleeve with something about the same diameter as the spindle.

Clean and re-grease. Push the fan back in, refit the split washer push it in until it clicks or so you know it's sitting in the grove on the spindle. Wipe excess grease away so it's clean to replace the label on to. You don't need the label really, a small piece of plastic / insulation tape will do.
Fit fan to heatsink, Done.

Jan 30, 2012 | Galaxy Computers & Internet

2 Answers

Hi, the fan of my laptop is very noisy..its very irritating. How can I solve this problem? Is there some remedy for this? Thanks...


Basic construction of a laptop cooling fan assembly:

The plastic fan is mounted in the middle to a Spindle. (Think small metal pole)
There is a small electric motor that spins the fan.

The spindle spins in bearings, or bushings.
Cheaper models use Bushings, better models use Bearings.

[ Bushing: A solid round chunk of bronze (Usually) with a hole in the middle. The spindle spins inside the hole. Also known as a Sleeve Bearing.
Bearings: Usually needle bearings in a cage. Less friction, longer life.

A) http://www.monarchbearing.com/sleeve-bearings.html

B) http://www.daltonbearing.com/torrington/torrington-needle-roller-bearings.aspx

There is usually a bushing on the top of the spindle, and bottom of the spindle.
Or a bearing at the top, and bottom.

The bushings, or bearings can wear out over time.
This allows the small electric motor's armature to rub against the field windings, or the fan's blades to tip to one side, and rub against the surrounding cage. (Shroud)

How to know?
The laptop has to be opened up, and the fan physically checked out. There can be NO perceptible play from side to side. There is however a SMALL tolerance for up, and down.

It may be also that 'Gunk' has developed inside the cooling fan assembly.
['Gunk' = Dirt, dust, hair, food crumbs, etc ]

If too much Gunk has formed on one or two fan blades, the fan is tipped down to one side a little.
The result is the fan's blades hit the surrounding cage. (Shroud)

Solution is to try to clean the air intake duct, and the fan, with a can of compressed air.
Laptop off, ALL power removed. [ AC adapter (Charger) and Battery]

Laptop is held up on one side, (Fan grille opening down towards the table), on a table with one hand. (Towel on table to keep from scratching laptop, or table)

Break the lock tab off of the can of compressed air for computers.
Insert the plastic straw provided into the can of air's nozzle.

Bring the plastic straw close to the grille opening at the top, on one side.
Spray air across the grille at the top.

{Spray air as a professional paint sprayer would spray paint.
Squeeze the trigger in all the way when you start, let go of the trigger as you reach the other side. Refrain from tilting the can. Do not swing the can in an arc when using it.
Keep the can level, and parallel to the grille opening when spraying air}

Now drop down a space, and spray air again. Keep dropping down in rows, and spraying across until you have reached the bottom of the air intake's grille opening.

[When using the can of compressed air it will eventually slow down in pressure.
This is because the air is coming out so fast, that the moisture in the surrounding air freezes.
This can be noted by the can is cold, and may have frost on it.

Let the can sit, and warm up for a while. Then it can be used again ]

Refrain from spinning the fan too fast. The fan's bearings, (Or bushings), are only designed to spin so fast.
Spinning the fan faster than it was designed for can lead to premature failure of the fan's bearings.

{The cooling fan is a mechanical part. Eventually the bearings wear out. Spin the fan too fast, and you will speed this process up. Instead of lasting for years, the bearings may go out instantly, or within, weeks, or months. Premature failure }

Use Short Bursts of air at the fan. Squeeze the trigger in all the way, then let go quickly.


You may have damaged fan bearings already. This would require replacing the cooling fan assembly.
What is the model number of the Asus laptop?
Post in a Comment.

Regards,
joecoolvette

Sep 05, 2011 | ASUS Computers & Internet

1 Answer

Bad bearings on a small HT800 table top fan. where can i get a replacment bearing?


Unfortunately, this fan was designed to be ran until it wouldn't run anymore, then thrown out.

However, I likely know what the problem is. The motors in these and most other small fans are a C-Frame Shaded pole design, they have porous bronze bearings, with a small amount of wicking material around them. They supposedly are oiled when they leave the factory (the motor factory not the fan factory) What happens is, the oil on the bearing surface is churned around by the rotating shaft and the heat from the motor slowly evaporates it, as this happens, the wicking provides more oil, which soaks through the porous bronze bearing, keeping everything lubricated. Over time, two things happen, 1. If the oil used wasn't very pure (and we are talking a $15 fan here) the volatile parts of the oil will evaporate leaving behind what won't evaporate, therby "gumming" up the bearings, making the blade hard to turn by hand and the fan very hard to start running, but once it gets going, it runs OK.

2. All the oil evaporates out, then the bearing and shaft are running together dry, the motor will run like this for quite sometime as the bronze is softer than the shaft and the metal coming off the bearing will provide some lubrication, but the bearing is being eaten up by the harder shaft. Eventually, the bearing will wear so much that the rotor drags on the stator and the fan will suddenly lock up hard when running and make a loud buzzing noise like hair clippers.


From what I remember, I had one of these that I used to boost the output from an oil filled radiator and when it gummed up, I was going to take it apart and re-oil it, but the thing is held together with security screws which I didn't have the tool to remove, so I threw it out.

However, if you can get in it, open it up, pop the blade off the shaft by pulling on it, motor should be held in with 2-4 screws, get some 3 in 1 oil (in the blue can) and oil both at the shaft and behind it where the wicking is. Leave the motor hanging there, plug it in, run it for a while to get it warm and oil it again, then put it back together and it should go back to working for a few more years.

Hope this helps :)

Jan 28, 2011 | Honeywell HT-800 Table Fan

1 Answer

Heater blower doesn't work


The fuse is the first thing to check; if you have no owner's manual, the fuse box cover will probably have a layout of the fuses. Once found, remove and check closely since the element can have only a small break that might let it appear OK if assessed quickly.
Since it works on no speed setting (?) it isn't likely to be the resistor that selects the different speeds so the fan motor itself may have glued bearings. If the resistor fails, only the highest speed will work.
The sleeve bearings are normally made of sintered bronze with graphite embedded and the graphite can build up and restrict the motor shaft.

Feb 27, 2010 | 2004 Pontiac Grand Prix

1 Answer

I did not disengage the chain brake before removing the cover. Now after replacing the chain I can't get the cover back on.


I was just fighting this on husqvarna. I re-set the brake by fitting the cover tilted to the front, jiggling the chain brake handle to engage it with the brake sprocket. Once engaged, push handle back to unbraked position while bearing down on the cover. You'll feel the click as it locks back to unbraked position.

Nov 27, 2009 | 2008 Husqvarna TE 450

3 Answers

Replace front wheel bearing is it hard to do on 2002 alero


its actually pretty easy if you have the basic tools needed and a little mechanical knowledge, because i dont think you can buy just the bearing at a auto parts store. they sell you the whole hub assembly which is great for the DIYer.

lift the car off the ground and block it from rolling and place a jack stand under it so it cant fall on anyone.


Wheel Bearings printpage_icon.gif

Removal & Installation

These vehicles are equipped with sealed hub and bearing assemblies. The hub and bearing assemblies are non-serviceable. If the assembly is damaged, the complete unit must be replaced.
  1. Before servicing the vehicle, refer to the precautions section.
  2. Remove or disconnect the following:
    WARNING DO NOT allow the caliper to hang unsupported from the brake hose.


    Front wheel Halfshaft nut and washer Caliper from the steering knuckle and support it aside


    Brake rotor Anti-lock Brake System (ABS) connector, if equipped 3 hub/bearing assembly bolts Halfshaft from the hub/bearing assembly Hub/bearing assembly

    0900c1528023b277.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Exploded view of the front hub/bearing assembly


To install:
Install or connect the following:

Hub/bearing assembly onto the halfshaft, making sure the splines engage smoothly Hub/bearing assembly to the steering knuckle. Torque the bolts to 70 ft. lbs. (95 Nm). Anti-lock Brake System (ABS) connector, if equipped Brake rotor Caliper onto the steering knuckle. Torque the bolts to 38 ft. lbs. (51 Nm). Halfshaft nut. Torque the hub nut to 284 ft. lbs. (385 Nm) on nuts colored black, or 173 ft. lbs. (235 Nm) on gray colored nuts. Front wheel. Torque the nuts to 100 ft. lbs. (140 Nm).

Jul 27, 2009 | 2004 Oldsmobile Alero

2 Answers

Blower motor does not work


Check for a blown fuse, or a faulty blower motor control relay.

Jun 26, 2009 | 1999 Mercury Sable

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