HK 4020 Needle Bearing HK Series High Precision

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1 set
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Product Specifications:



Brand Name:


Bore Size:

40 mm

Outside Diameter:

47 mm

Model Number:

HK 4020

Precision Rating:


Seals Type:

Open or Sealed

Number of Row:

Single Row

Place of Origin:

Jiangsu, China (Mainland)


Chrome Steel


Grease Lubrication


Plastic Bag and Box


HK 4020

Drawn Cup Needle Roller Bearing :

The outer ring of drawn cup needle roller bearing is punched with the high-quality steel sheet. The outer ring has thin wall.The drawn cup needle roller bearing has the characterstics of small radial section area, large load carring capacity ,less inertia and economic manufacture. It is suitable for small section heght, or when the housing bore isnot used for raceway , this type is recommended to use .The bearing is assembled into the housing bore under a certain pressure without fu rther axial location.


The draw up needle roller bearing generally takes its shaft diameter as the internal raceway .However , the proper LR type inner ring can be  used in accordance with application condition.

Our Advantages:

1. Excellent and high quality control

2. Prompt delivery

3. Competitive price

4. Small order accepted 

5. Customers' drawing or samples accepted

6. OEM service

Application Area:

Needle roller bearings are mainly used in car engines, transmissions, compressors, cranes, etc.



1.More than 28 years export experience

2.Strict quality control

3.Delivery in time

4.OEM service are available with good price

5.Low MOQ

HK 4020 Needle Bearing HK Series High Precision

HK 4020 Needle Bearing HK Series High Precision

HK 4020 Needle Bearing HK Series High Precision

HK 4020 Needle Bearing HK Series High Precision

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Q:WD-40 on skateboard bearings?
Wd40 Skateboard Bearings
Q:how do you take the bearings out from the wheel?
push it with a screw driver
Q:torque on rear wheel bearings?
on that car the bearings should be already pressed into the hub.all you need to do is tighten the hub bolts.
Q:What exactly are sealed bearings, sealed pedals, etc?
It all has to do with the bearing. Sealed bearings are self contained, you can't take the bearings apart to service you just buy new ones when needed. They stay cleaner longer because they are a sealed unit. Loose bearing can be serviced, taken apart and repacked, but they need more maintenance because they aren't the sealed type.
Q:What are the Fastest skateboard Bearings?
bones reds unless u have alot of money to spend then u could get bones ceramics or swiss
Q:Are bone swiss cermamics bearings completely waterproof?
no bearings are water proof if water goes into your bearings then they will probably get ruined
Q:What is a cheap cleaner I could use to clean my skateboard bearings?
You might laugh.... until you try it. Then you will be like... That dude on Yahoo answers was so right. Old trick, but its more for smooth bearings than actual cleaning, although they do get clean in the process. Get a glass. Buy Johnsons and Johnsons baby oil. Fill the glass with enough of the baby oil so when you dump your bearings in there, they are fully immersed. Let those babies sit in there for a few hours. Take out the bearings, wipe all the crap and dirt from them.. clean them real good. Spin them, get the crap out of them. THEN... fill up another glass with the baby oil... same thing, dump all your bearings in there fully immersed. Leave it overnight... wake up next morning, lightly wipe them, assemble your bearings and wheels. Dont OVERTIGHTEN! Just enough that the wheels are solid, but not tightly bolted. Let her rip! Don't be afraid to wear a grin of awesomeness when you discover how much better the bearings are. Find a nice smooth patch of road... take a few pushes, and see how far you roll.
Q:How much would new rear bearings for 2004 Saturn VUE cost?
Now here is what you do if you get a shop to do it. Get estimates from everyone. Then go by brake check and get an estimate. Now the trick is is to get on the computer for the brake check in your city, if you have one. They have a calendar there where you can schedule your vehicle for putting in new bearings. If you will notice, on certain days, they have up to 30% on some locations at different times and days. You might call and ask what the percent off covers. Is it parts or labor or both. But seems a good deal. Otherwise, buy a hayes repair manual for about $20 or so. Bearings are one of the few things that are EASY to put in. Now you can go to one of those back yard mechanics who can do it real cheap.
Q:what do you know about bearings for skateboards?
Q:You have nine ball-bearings riddle?
Weigh three ball bearings against another three ball bearings. If one side goes down then you know the heavy one is one of those three. If the scale balances then it is one of the ones you didn't weigh. Weight two of the three containing the heavy ball against each other. If one side goes down then it is the heavy one. If the scales balance then the heavy one is the one you didn't weigh.

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