Needle Roller Bearing K 15X21X15 Best Price High Quality

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Needle Roller Bearings (needle bearing) is a cylindrical roller with roller

bearings, relative to its diameter, roller both thin and long. This is called needle

roller. Despite having a smaller cross-section, has a higher load bearing capacity

equipped with a thin and long needle bearing roller (roller diameter D≤5mm,

L / D≥2.5, L is the length of the roller), so radial structure is compact, its

diameter size and load capacity and other types of bearings, minimum diameter,especially for radial dimensions limited support structure.


Best Price Needle Roller Bearing K 15x21x15

Precision Rating



C0,C2,C3,C4,C5 is available

Sealed Cap 

Rubber or Metal





Vibration Level code




Seals Type




Bore Size

15 mm

Outside Diameter

21 mm


15 mm

Regular export packing

Plastic drum+White box+ carton

industrial packaging or as your requirement


1 pcs

Delivery Time

3-7 days after receiving your payment  

Payment Terms

L/C,T/T,Western Union

Port of shippment by sea


Place of Origin




Product Advantage:

1.High Precision  Needle Roller Bearing

2.ISO Standard Bearing 

3.High quality &competitive price 

4.Many famous brand is available 

5.Low Noise & Long life 

Our advantages:


1. Manufacturer,the most competive price and good quality

2. Perfect group of technical engineers give you the best support

3.Well-trained group of international sales provide the best service

4.OEM brand aviliable

5.Rich stock and quick delivery


1.Small quantity, can delivery by global express: DHL TNT FedEx ARAMEX EMS UPS.this is door to door.

2.Large quantity, can delivery by air, by sea, this is port to port.



T/T, L/C, Money Gram, Payal, Western Union etc.


Lead Time:

Sample Lead-times: generally 3-5 workdays.
Production Lead-times: 3-5 days after get payment or as contract required


Needle Roller Bearing K 15X21X15 Best Price High Quality

Needle Roller Bearing K 15X21X15 Best Price High Quality

Needle Roller Bearing K 15X21X15 Best Price High Quality

Needle Roller Bearing K 15X21X15 Best Price High Quality

Needle Roller Bearing K 15X21X15 Best Price High Quality

Needle Roller Bearing K 15X21X15 Best Price High Quality

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Q:Camshaft Bearings Low Oil Pressure?
Well to start, your engine has no camshaft bearings. It utilizes dual overhead camshafts, that ride in specially machined surfaces in the cylinder head and are held down with caps that have the same machined surfaces. If excessive wear is present in these places, the cylinder heads are irreparably damaged and must be replaced. The reason for the loss of oil pressure is due to the increased clearances between the components. This is symptom is usually more a product of worn crankshaft and or connecting rod bearings. The increased space between the components provides a less resistant path for the oil to be forced through, and therefore resulting pressure is reduced.
Q:how to replace front wheel bearings on AWD vehicles?
There are inner and outer bearing. You pull the rotor... sometimes you must break loose the spindle (comes out of the CV joint) and all recommend a puller. Same as doing the front for most cars, just all the way around.
Q:Ford F150 Repair Question. Transmission/Bearings?
it can be a twin issue. The f150 has had multiple problems with bearings interior the rear end. It does no longer impression your potential to shift gears, besides the indisputable fact that. yet another bearing that is noisy is a wheel bearing. Your chum could were suitable, in that an inner issue interior the transmission may be the source of the noise, and hence may be the region consisting of your shifter. ideal case state of affairs is the wheel bearing, or in the different case be prepared to spend $1000 to $2500. i could visit the broking service to work out if there has been any silent remembers. HAVE IT ADDRESSED at modern.
Q:How much would it cost to get bearings fixed on a fourtrax 250 Honda yr 2000, just a rough estimate please.?
What bearings? Wheel bearings are cheap and a DIY job. Engine/transmission bearings? They are more expensive and the labor to change them will run into the hundreds. Axle or steering bearings fairly cheap and yet another simple DIY job.
Q:is there a need for an alignment after replacing wheel bearings?
I have been in the automotive industry for 35 years,and I have found that any time suspension repair is done you should always have alignment checked.Even rear alignment can change with time and wear and tear on springs and struts.Its best to spend a little bit of money for assurance than alot for tires.
Q:Why are my new black panther ceramic bearings so slow?
I don't know ,but i say just continue to wait for the break in period.. Break 'em in man. make sure the bearings are installed correctly .. Make sure there in all the way in the chamber of each wheel. Don't tighten the bolt on the wheels to much neither.. Another thing that can help is adding some of that special bearing lubricant.. Or you can also apply motor oil. Dip your finger in oil and gently rub it around the side of the bearings.. Not to much just a little .etc.
Q:is this maintenance spray good for skateboard bearings?
it may be good for internal bearings it sounds like it's exatally like wd-40 which isn't a good spray for bearings only because it leaves a residue behind that'll collect more dust and dirt and do more harm. You're best to get the silicone sprays like that bearing factory one, I know it costs more but it's a lot better and a can that big would last almost a liftime because it doesn't take much to lube a skateboard bearing, or even 8 of them.
Q:what brand makes good bearings and trucks?
the best available bearings are probably bone swiss supers they are amazing but are almost 40$ if you want pretty good bearings that arent as much try bone reds same company half the price and still amazingly good as for trucks i have destructo trucks but you should try maybe ventures or independence or tensors try getting medium hiegt though dont get low trucks they are harder to ollie with and dont give you much pop
Q:On a scale of 1-10 how good are abec 3 skateboard bearings?
They can be between a 9 and 10 or they can be a 1. The ABEC number is basically useless for skate bearings. It is related to vibration at very high speeds (over 200 mph on a board). The tight tolerances on the high ABEC ratings can actually slow you down which is why the high end company (Bones, Zero Drag, Twin Cam) all make bearings without any ABEC rating as their top bearings. However, there is a spec called precision that is really sloppy and was in common use before people started getting ABEC 1 bearings for the consistency. The biggest thing that 99% of the people will see as a difference in speed of the bearing is the lubricant that they maker put in the bearings. Grease will be slow at first until it is pushed mostly to the side but it lasts the longest before you need to relubricate or replace the bearings. Oil is the fastest but doesn't last long. Gels are in between in speed and life.
Q:Changed skateboard bearings to bones reds and it made it worse!?
Well if they are newer bearings you need to break them in what can take awhile depending on how much you skate... it can take a good day to a month or so just break them in and get them going... and from what I read online never use WD40 on them

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