HK 4020 Drawn Cup Needle Roller Bearings HK Series High Precision

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1 set
Supply Capability:
900000 set/month

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Product Description:

Product Specifications:


Model No.: HK 4020

Brand Name: OEM


Net weight: 0.049kg

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

Needle roller bearing :

Needle Roller Bearings (needle bearing) is a cylindrical roller with roller

bearings, relative to its diameter, roller both thin and long. This is called needle

roller. Despite having a smaller cross-section, has a higher load bearing capacity,

equipped with a thin and long needle bearing roller (roller diameter D≤5mm,

L / D≥2.5, L is the length of the roller), so radial structure is compact, its

diameter size and load capacity and other types of bearings, minimum diameter,

especially for radial dimensions limited support structure.

Product Applications:

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

HK 4020 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

Product Advantages:

1)Bearing Manufactory ( Have our own technical department)

2)High quality products (Long Life and low noise)

3)Well-daserved Reputation (Good Stock Guarantee)

4)Professional service ( Promptly shippment)

5)OEM Service,Sample is available


We have complete process for the production and quality assurance to make sure

our products can meet your requirement. And our quality can compare with the

most chinese famous bearing manufacture. we have the same technology. Such as 
1. Assembly
2. Windage test
3. Cleaning
4. Rotary test
5. Greasing and gland
6. Noise inspection
7. Appearance inspection
8. Rust prevention
9. Product packaging

HK 4020 Drawn Cup Needle Roller Bearings HK Series High Precision

HK 4020 Drawn Cup Needle Roller Bearings HK Series High Precision

HK 4020 Drawn Cup Needle Roller Bearings HK Series High Precision

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Q:How many ball bearings are in the freewheel part of the hub on a 26 shimano mountain bike?
Call a bike shop!!!!!!!!!
Q:skateboard bearings problem?
get bones reds and try not to leave ur boards in the rain
Q:How do I get the crank bearings out of my Blaster?
Yamaha Blaster Crankshaft
Q:how to change wheel bearings on a 2002 mazda protege 5?
Take of the wheels, find wheel bearing.. replace wheel bearing. put tire back on..
Q:Would regular skateboard bearings work for a longboard?
Q:Main and rod bearings?
Proper way is to mic the journals for size. But in many cases you can still read print on back of old bearings. Originally there would have been (std) printed on back of bearings if they are standard or original size. If crank was turned say ten thousands, bearing would have (.010) printed on back for undersize crank and so on for different sizes.
Q:what are the best bearings to buy for my longboard?
Q:Question about wheel bearings on a 1999 Dodge 3500 van?
Wow! thats really too soon to be replacing the bearings,there is DEFINETLY other severely worn parts in the front end, you should take the van to a front end specialist and have them look at it.Question;does he replace the race also when replacing the bearings? if he doesn't, that is the problem, you MUST replace the ''race also ,and if he does, then the problem is with other worn parts in the front end.
Q:Can ceramic bearings be used in motorcycle engines?
In certain places yes. What ever bike you are a racing in Singapore will not NEED ceramic bearings so I would not worry about it.
Q:Changed skateboard bearings to bones reds and it made it worse!?
Spin tests are useless, they give no indication of the bearing's performance under load. Bearings take a while to break in, especially Bones. Might take a few good days of riding. There should be a speed ring on either side of the wheel. Some Trucks do have a built in protrusion that does the same as a speed rind, so only the outer one is needed. Make sure you didn't tighten the axle nuts too much. There should be a little play in the wheels. Also, make sure your bearings are seated properly. Ditch the spacers as they often cause problems. If you skated in the rain with the new bearings, clean and re-lube them. . They might be salvageable, otherwise plan on buying another set of bearings.

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