HK 3820 Drawn Cup Needle Roller Bearings HK Series High Precision

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Product Specifications:


Model No.: HK 3820

Brand Name: OEM


Net weight: 0.046kg

Material: Chrome steel

Cage: Brass, Steel


1) Precision: P6 P5 P4 P2

2) Noise level: Z1, Z2, Z3, Z4

3) Vibration Level: V1, V2, V3, V4   

4) Clearance: C2, C3, C4     

5) Hardness: 58-63 HRC             

6) Greese: As your requirement, such as SRL, PS2, Alvania R12 and so on.


1.Industrial packing: box

2.Commercial packing: box then into standard carton/wooden Box

3.According customer's requirement


T/T, L/C, Western Union

Delivery time

About 3 to 5 working days


Warrantee: 1 year

Samples: available

 OEM: available

Free technical support and after-sales service

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.


The draw up needle roller bearing has two structures-with retainer and with full of needles. They are are divided intoopenend type and close-end type. The structure with retainer has the single seal ring and double seal ring .The structure with full of needles has a large load carrying capacity.

Seal/close type Drawn cup needle roller bearings HK:

1.Strong load 
2.High performance work 
4.high speed

Product Applications:

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

HK 3820 Drawn Cup Needle Roller Bearings HK Series High Precision

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


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



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 Drawn Cup Needle Roller Bearings HK Series High Precision

HK 3820 Drawn Cup Needle Roller Bearings HK Series High Precision

HK 3820 Drawn Cup Needle Roller Bearings HK Series High Precision

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Q:Does anyone know what the automotive oil additive for bad rod bearings is called?
In the olden days hucksters would add sawdust to the crankcase to mask the bang of bad rod bearings. Very fine sawdust would make it through the filter and pad the worn bearing. It would quiet the noise for an hour or so. When a rod bearing fails it must be replaced as soon as possible. The bearing is a sandwich of an outer steel shell, a thick layer of bronze, and a thin layer of babbit metal. The babbit metal is gone and the bronze is being pulverized, while the oil pressure to the other bearings is being bled away. If you haven't been driving on it for long you may get away with new bearings; otherwise an engine rebuild is mandatory. Only dropping the pan and inspecting the bearings will tell for sure, but if it has been driven an hour or more like that the odds are poor. Here is one that was not going to last another minute... literally.
Q:skateboard bearings problem?
get bones reds and try not to leave ur boards in the rain
Q:why do my skateboard bearings keep locking up?
Q:Should I mix Different bearings?
Only if you took out slow bearings and replaced them with faster ones. If all your bearings run well, mixing them will do nothing.
Q:How does the abec bearing rating system work on skateboard bearings?
i've got been using Black Panther Swiss bearings in a pair boards for some years. they have been sturdy and supply sturdy speed, adequate to do grinds interior the 9ft end of the pool. The ABEC score has little to do with speed. It merely pertains to tolerances in manufacture and use in extreme speed equipment. It has not something to do with the suitability of a bearing for skateboarding. it relatively is why maximum extreme-end bearings are actually not ABEC rated, as they are designed especially for skateboards.
Q:are bearings Dust Cover unique for specific wheel/hubs?
? dust covers don;t affect the bearings you must have something misunderstood if the bearings come out you have problems but that would be a matter of wrong bearings or wrong cones, not bad dust cover wle
Q:What are skateboarding bearings?
first, try posting in the proper category (this is Cycling) second, most wheels have some type of bearings to act as the glide point between the hub or axle and the wheel itself
Q:Need new bearings which ones should i get?
What bearings? ABEC 5 is just a bearing grade......dosent tell anybody anything other than you currently have ABEC grade 5 bearings. What size, What part do they go on, How many do you need?
Q:skateboard bearings.?
Reds bearings are the best bearings you can get. Any skater willt tell you that. Just go to a skateshop.
Q:What do ceramic bearings do for my longboard?

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