Needle Roller Bearing K 15X21X20D Best Price

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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 15x21x20D

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


20 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 15X21X20D Best Price

Needle Roller Bearing K 15X21X20D Best Price

Needle Roller Bearing K 15X21X20D Best Price

Needle Roller Bearing K 15X21X20D Best Price

Needle Roller Bearing K 15X21X20D Best Price

Needle Roller Bearing K 15X21X20D Best Price

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Q:Condenser fan motor bearings are bad on my home ac unit how can I tell?
The only way you can tell without investigating is by sound or seeing the the fan wobble, It could be just a little. Unfortunately replacing the bearings would not be a good idea. Actually you could have a collapsed ductwork in the attic.
Q:Ball Bearings Problem Solving?
Put 1 bearing from the first bin, 2 bearings from the second bin, 3 bearings from the 3rd bin, ..., and 11 bearings from the 11th bin on the scale simultaneously. There will be 66 bearings on the scale. Record the total weight of the bearings in ounces as W. The number of the bin containing the overweight bearing will be given by N = 10(W-66)
Q:Which Mineral Spirits Should I use for my Bearings?
Usually we do not clean them you simply pack new grease into them forcing the old crap out
Q:What skateboard wheels, bearings and trucks for my sons new pool skateboard?
for a pool board the new school sucks wheels are good reds bearings are cheap, reliable and long lasting or swiss labyrinth are twice as expensive, but longer lasting, smooth and only like 35bucks indy lows trucks (independent lows) are really good for air and dropping in, but you get wheel bite( wheel touches board = immediate stop) real easy thunder tricks are the BEST, no kidding, (get the black ones with a hollow king pin) GET THE THUNDERS
Q:How do I get the crank bearings out of my Blaster?
I am interested in the answer to this too
Q:What kind of bearings should I buy for speed?
I use Bones Swiss bearings and they have been very responsive and have made a big difference. If you want to know how fast a bearing is most have abec ratings, nine being the highest. However, as Bones Swiss are of better quality and faster than most bearings, they have omitted the abec rating. I highly reccommend the Bones Swiss bearings and if you want to get better than those, you get the ceramics. They are much more expensive though.
Q:Cost of replacing wheel bearings?
Mine were looking to be 205 a piece but mine were on a suv to. But a a sable I bet your lookin about 125-150 a piece. As for the response above he is talkin about a c-v joint not a u joint. a u joint is in the drive shaft not anywhere near the wheel. I would suggest getting the bearings and c-v joint check as it could be eaither or
Q:Cherokee Oil Pressure -- Stumped (Oil Pump, Bearings, etc)?
A four stroke engine such as yours has pressure lubrication. The oil pump picks up oil from the sump, sends it through the filter, and than to the engine. Pressure depends on fluid pushed through a restriction. Do NOT drive your vehicle with low oil pressure, or you will do permanent damage if you were planning on a rebuild. Even if you use the incorrect oil weight, 5psi at idle and 15-20psi while driving has nothing to do with it. Oil is not getting pressurzed because of either the oil pump, oil pump pressure-relief malfunction, oil leaks at main bearings, connecting rod bearings, etc... If they changed the pump and gauge and you verified with a mechanical gauge that you have insufficient oil pressure, the engine has to be disassembled and inspected. Bearing gaps have to be measured with micrometers, calipers, plastigauge etc. I doubt that the dealership will perform this. If you're under warranty, perhaps you will get a new engine. If not, don't worry. I assume you have the 4.0L I6 which is very common. I was planning a rebuild once but found out that long-block engines can be had at wreckers for about $800 with super low mileage. Good Luck.
Q:Difference between rubbing bearings and roller element bearings?
With roller bearings there are small rollers between the moving and non-moving part so that there would theoretically be no friction. Ball bearings work in a similar way.
Q:What are the best bearings for a longboard?
bones are the bearings most wanted, but people usually go with mhs or mini logos just because of price. as long as they spin, they will work. just don't go spend $150 on some bones swiss ceramic abec9 crap that are barely better than some random $10 bearings you can get in zumiez. btw for boards look at kracked skulls. you can find many 5% off discounts on line.

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