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:Im trying to open up my ABEC skateboard bearings?
I just lubed up my skateboard bearings today. Sometimes you cant remove the shield (the yellow-gold part in the picture). If the shield is removable you can take a razor blade and stick it in the tiny gap between the shield and the bearing wall and lift up the shield to expose the ball bearings. you should do it carefully so you can put the shield back when you're done. If you're doing this to lube up the bearings, drop in a couple drops of lube and pinch the bearing and spin it so the lube coats the inside. then brush the ball bearing with a q-tip to remove excess lube.
Q:are abec 5 good bearings?
The type of the ABEC would not confirm how briskly you flow, basically how long the wheel retains spinning once you provide up pushing. somewhat, it relies upon on the skater. even inspite of the undeniable fact that, in case you sense as while you're having to paintings extra sturdy, you have got tightened the nut too lots. ONe solid thank you to decide the terrific suited tightness is as quickly as you have tightened the nut, make optimistic the wheel isn't wobbly, then spin the wheel and count type 10 seconds. After ten seconds the wheel could nevertheless be rotating (slowing down, yet nevertheless moving). If the wheel would not spin for no less than 10 seconds, then loosen the nut in user-friendly terms slightly then attempt returned.
Q:which skateboard bearings are faster?
black panther are no contest
Q:skateboard bearings.?
As much as I love reds, i prefer speedy lunatics but if you have the cash go for bones super swiss 6.
Q:How much for rear wheel bearings...?
Parts and labor will be in the area of around $450.00 plus tax...
Q:Are Bones Swiss bearings good?
YES!!! they are way better then reds. but me personally i dont like spending that much for bearings so i stick with reds cuz they last long and are just as good
Q:How do you use ball bearings to support axial force?
There are pressure bearings which are installed (in your case) at the bottom of a vertical rotating shaft to support the weight or downward pressure of it and reduce friction. Those bearings are usually roller or needle bearings. I have seen them also with steel balls but having an identical top and bottom plate or ring. It is unwise to use regular ball bearings with an inner and outer ring for that.
Q:Replacing rod bearings 3.3 grand caravan 01?
Well, it depends..
Q:How do you pack trailer bearings with grease?
Just use old rags to wipe off the old grease. Then reinstall the bearing buddy and put the new grease in by pumping it into the bearing buddy. Don't disassemble the hub bearings unless they have failed and you are going to replace them. If that's the case, prepack them before installing. Check instructions from your parts supplier......I learned to do it by hand from a mechanic 45 years ago. Good Luck!
Q:how many ball bearings can i jam into my eurethra?
I would probably say around 3-4 (Small Ball Bearings) if i was in your currant situation i would use Vaseline to lube up your Urethra first this also will make the skin slightly more flexable inside and arround the Uethra, It could also be a good idea to measure the size of the Initial hole/opening and only putting ball bearings down there which you are comfortable with. When trying to extract the Ball Bearing i would put slight pressure on the Uethra behind ALL the Ball Barings and trying to slowly but comfortably squeeze them back out. If you cann'ot squeeze ALL the Ball'Bearings out after a few tries you should go to the Closest Hospital and tell them your EXACT situation.

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