HK 3820 Needle Bearing HK Series High Precision

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
1 set
Supply Capability:
1000000 set/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

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

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:How many ball bearings are in the freewheel part of the hub on a 26 shimano mountain bike?
Oh JEEZ! You should have never removed that lockring. The entire freewheel body actually unscrews from the hub. A freewheel probably has in the neighborhood of 100 to 120 tiny bearings in it. I am making the assumption that you really didn't disassemble the freewheel, but rather removed the cogset from a cassette body. The easiest way to work out the number of bearings is to install bearings until there is no more space in the race, then remove one. If the bearings are from the outer edge of the cassette, there are either 8, 9 or 11. If they are from inside the hub it is the same count but the bearings are smaller in diameter. The exact number depends on the hub model. Regardless, make sure that you use either white lithium grease or a very light automotive grease...not one meant for disc brakes. Best yet is to get some grease made for bicycles. If you did indeed disassemble the freewheel, forget it and buy a new one... they can be had pretty cheap.
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:Could you suggest me an experienced combined needle roller bearings exporter?
Changzhou Zhihua Bearings Co., Ltd is a forward-looking company, the company is a successful combined needle roller bearing exporter. Their products have been exported to many countries and enjoy high reputation.
Q:are abec 5 good bearings?
The abec number is basicaly meaningless for skates and boards. Any abec number can be great or junk depending on the maker. Most non-abec bearings are absolute junk but some of the best companies (Zero Drag, Twin Cam, Bones) specificaly design their best bearings to violate the abec specs to make them better. Getting any of them from a reasonable skate/board company will be good. The main differences in most bearings is the lubricant (grease is slower at first but lasts forever, oil is fast but you need to reoil them more frequently, gels are in between). In some cases the lubricant makes a difference in rust resistance if you hit wet areas. Twin Cam has been known for very high rust resistance and Bones for low rust resistance.
Q:2001 Saturn L series: replacement Hub/Bearings mismatch?!?!?!?
This is the correct bearing. Its called a unit bearing and must be pressed in with a hydraulic press. Most front wheel drive cars use this set -up. A little tip: If the driver side is bad it likely the passenger soon to follow ,have them both done at the same time. To save some money remove the hubs from the car yourself.Take them to a shop have the bearings pressed. They should only charge about 35.00 each.
Q:Do skate bearings fit any wheels?
Skateboard Bearing Size
Q:Would air bearings on an electric care work?
But air bearings are not typically exposed to shock and vibration, such as a car would experience when running over washboard roads or when hitting a pot hole. One good bump and your bearing would wipe itself out.
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: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:Which skateboard bearings are the best? (Bones or Modus)?
I really like bones swiss but i never tried bones reds

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range