HK 3820 Needle Bearing HK Series High Precision

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1 set
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1000000 set/month

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Product Specifications:



Brand Name:


Bore Size:

38 mm

Outside Diameter:

45 mm

Model Number:

HK 3820

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 3820

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 3820 Needle Bearing HK Series High Precision

HK 3820 Needle Bearing HK Series High Precision

HK 3820 Needle Bearing HK Series High Precision

HK 3820 Needle Bearing HK Series High Precision

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Q:How many thrust bearings are on an inline four cylinder engine?
The thrust BEARING (there is only one) is part of the transmission. It's separate from the main bearings of the engine.
Q:How to take care of skateboard bearings?
vehicles and wheels you may in simple terms wipe off with a humid cloth. For bearings you may desire to purchase a bones bearing purifier bottle and fluid for it and it will clean them. once you clean them use a low viscosity bearing lube for speedier bearings. My famous bearing lube is Bones velocity cream
Q:Do skateboard bearings come in different sizes?
Lets see... For a good deck I'd check out Plan B, ZooYork, or Zero they're all 3 pretty good brands. For trucks u have either Silver or Independent, I think Silver is better but that's my opinion. For bearings I'd go with either Bones or FKD saw blade. For wheels Bones would be a good buy as for grip tape u can either check out mob or check out Torey Pudwill's new brand called Grizzly Grip but it just came out recently so it may be hard to find in stores!
Q:What are some cheap but good skateboard bearings?
Bones Reds FO SHO. if you have money then go bones swiss. #1 most preferred bearing by pros.
Q:are baker tweaker bearings any good?
If you are talking about roller skate bearings I absolutely love my bones bearings. All of their bearings are great! Kind of pricey but well worth it if you can take care of them. Also Sure-Grip ones are great. I like to go with either 7 or 9 ball bearings in them.
Q:How long do bearings last?
Personally my friend has a longboard with bone reds and he carves, powerslides, and just about everything else, and his bearings are still good today. (He got them installed 2 years ago). And he rides pretty much everyday.
Q:How can we reduce friction by using ball bearings?
Rolling friction is much lower than sliding friction. Ball or Roller Bearings always have much lower drag than sleeve bearings except for pressure fluid suspended sleeve bearings like in a car engine, but; it takes much more power to pressurize the fluid so it is essentially drag.
Q:what solvents are good for cleaning skateboard bearings?
Honestly... unless you have very good bearings, the best thing youc an do is toss them and get a new set. Most bearings are inexpensive and rather cheaply made. If you are using something like bones swiss, then take care of them and they can last for years. What do I use to clear my swisses? Gasoline. Its dangerous, but nothing works better. Honestly, just get a new set if you are riding cheap bearings.
Q:new wheel bearings?
That star nut your talking about can be removed from the nut...And is adjustable to fit in the right location. Hand tight While spinning the tire works best for your bearings...
Q:how to replace wheel bearings on a 97 ford aspire?
I already did replace a front wheel bearing on my 97 Aspire about six years ago. I needed a hydraulic press but managed to do it by using a socket the right size to hammer the bearing center down on the wheel flange tube. This wheel bearing is still working fine today on a car that sees 8000 to 10000 miles per year. I bought this car in July 2000 and it currently has 180,000 miles on it. I put Mobil one synthetic oil in it when I first bought it and it still runs like new. I do not recommend installing the front wheel bearings with a hammer. It's too tricky.

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