HK 3820 Needle Bearing HK Series High Precision

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1 set
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Product Description:

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:What kind of bearings does an average pro skateboard have?
General pro skateboards have element bearings. But most of the time, the company the skateboard is from will probably have their brand bearing. Most pros have element bearings though.
Q:How can i get the wheel bearings out of the back wheel of my yamaha r6 2002 model?
R6 Bearing
Q:what bearings are faster??
hard to tell, I bet they are the same if you broke them in. It can take months of constant skating to break in a set of abec bearings. You never know what you're going to get with abec rated bearings because that rating doesn't mean anything for skate bearings only swiss does. Use some speed cream and break them in and you'll have some fast bearings.
Q:Can I use this on my longboard bearings?
never tried it, but the best known cleaners are paint thinner, denatured alcohol, acetane, stuff like that. you'll also want to you some very low viscosity lubricant of some kind. spray stuff and creams usually work the best.
Q:help on this math question about bearings?
Sketch the situation and you have a triangle ABC, where A is the starting point, B is the turn after 10km, and C is the ending points. From the bearings, angle A is 75° (90° - 15°), angle B is 100° (85° + 15°), and so C must be 5°. Side c (opposite from C) is 10 km. Solve for side b (opposite from B) using the law of sines: b / (sin B) = c / (sin C) b = c * (sin B)/(sin C) = (10 km) * (sin 100°) / (sin 5°) Now, put your calculator in degree mode and see if the answer is closer to 113 or 114.
Q:How do you take out a front rim bearings?
You'll need a tool called a slide hammer and the proper associated fittings to remove rim bearings. Personally, I wouldn't reuse bearings that were removed. These are often cheap enough to just purchase new without worry that soon you'll be replacing them soon. Since you're dealing with bicycle bearings, they're going to be pretty cheap. Industrial and vehicle related bearings will cost more. The slide hammer attachement basically grabs the bearing pack from the inside diameter where the shaft would slide through. the attachment is connected to the slide hammer. you hold the rim down and slide the hammer weight towards you or upwards in a fast motion.
Q:Bearings on a Skateboard!! Help?
Thumbs up for big thats how you should always install your bearings, make sure to press as straight as you can and they'll pop in better.
Q:how can i loosen the nuts that hold the bearings in on my hyper bike co bike?
spray some wd40 or pb blaster on it, then positioned the main appropriate sized socket on it, 6point in case you have it...and unfasten it with the case you choose on an prolonged ratchet cope with you will get extra leverage via putting a jack cope with or something like that over the ratchet. yet once you positioned all of it back mutually make constructive its tight yet not as tight because it rather is now
Q:Engine needs new bearings?
A good rebuilt motor already put together by a good company with a good warranty will cost you around $1,300 for your car.It would be worth it to get a rebuilt motor.
Q:How much would it cost to replace bearings on bicycle?
With that many miles, you may desire to get your motorcycle right into a close-by motorcycle keep. you will probably want a clean chain, rear cassette, front chainrings and brake alterations. The overhaul could desire to fee one hundred money or so plus aspects, yet you may desire to get by making use of for below 200. Gary Fisher makes very stable motorcycles and the physique can final you properly over 10 years. inspite of the shown fact that, purely like a vehicle, your motorcycle desires periodic maintenance. in case you spend 3 hundred-500 money on a clean motorcycle, yet do not do any maintenance, you would be asking the comparable question in 2 greater years. reckoning on the circumstances you experience in, you may desire to be cleansing and lubing your chain and cables usually. The greater dirt, airborne dirt and mud, airborne dirt and mud and water that your motorcycle is in, the greater maintenance required. it particularly is all basic to do, you purely want somebody to tutor you. once you're taking your motorcycle in to get fixed, purely ask them to tutor you what to do for preventative maintenance.

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