HK 4020 Drawn Cup Needle Roller Bearings HK Series High Precision

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
900000 set/month

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Product Description:

Product Specifications:


Specification

Model No.: HK 4020

Brand Name: OEM

Size:40*47*20mm

Net weight: 0.049kg

Material: Chrome steel

Cage: Brass, Steel

Features:

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.

Packing

1.Industrial packing: box

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

3.According customer's requirement

Payment

T/T, L/C, Western Union

Delivery time

About 3 to 5 working days

Services

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


QC:

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:radial and thrust bearings?
I okorder.com/... which turn out to just be what I think of as normal or traditional ball bearings. No, radial bearings do not allow motion along the axis - normally there is a stop on the shaft to prevent this and continuous movement would damage the inner surface of the race or the shaft. Depending on the type of race, having any significant axial force would damage the bearing, as would occur in moving the shaft axially. Thrust bearings in theory are entirely for taking thrush along the axis and properly positioned radial bearings handle the radial forces of belts, chains, wheels, etc. A roller bearing or taper bearing would be used to handle both in one location. In practice, a thrust bearing with a ball race of the right shape will handle radial forces of a significant fraction of the rated thrust.
Q:Is it ok to use gun oil after cleaning my bearings?
depends what kind of gun oil, there are lots of oil that'll leave a residue behind which will just make your bearings collect more dirt and dust, gun oil is know for doing that but you always try it out, in a pinch i've used oil before but it's not always the best for lube. A can of tri-flo at the hardware store will work great and should last a long time if you just use it for your bearings. If you have a lot of gun cleaning supplys maybe you have something called rem oil, it'll work good enough to keep your bearings lubed and doesn't leave a residue behind.
Q:Are ALMOST boards good? how bout Thunder trunks? what is a good hardware? or bearings?
lucky okorder.com a very trustable website were i got my board lol :D you can go to the complete builder and look at all the different decks, trucks, hardware, bearings, etc...
Q:what is the parts number of a 1998 yamaha v-star rear wheel bearings?
You can pull the bearings and take the numbers off of them or take the (cleaned up) bearings into any bearing retailer and get new ones from your favorite manufacturer. You don't need the part number, you need the bearing number. That number is universal and will get you the correct bearing regardless of manufacturer. Or you can go on over to the V-star forum and look through their archives - search for wheel bearings. I'm sure someone has the bearing numbers for your bike as well as special procedures to make it easier to replace the bearing on your bike. Each wheel set seems to have some special quirks to it.
Q:What bearings for inline skates are the best?
Abec-5 Boss Speed bearings (better known as Swiss), and I happen to have an un-used set that I am selling since I hardly ever play roller hockey anymore.
Q:How much for rear wheel bearings...?
wheel bearings r about 100 dollars each and about 100 to install...total job about 300 to 350..
Q:What size bearings does a hoffman bmx bike use?
You may need to be more specific with the question but i assume that you are talking about the bottom bracket bearings. In BMX there are various BB (bottom bracket) sizes there are, Euro BB, Spanish BB, American BB and Mid BB. The most commonly used BB is the Mid which most BMX frames use now days, the American BB is quite old and dated the other BB that you may see is the Spanish BB which is used by various companies one being Fly Bikes (being a spanish company). You may find that your Hoffman frame has a Mid BB and the Eastern frame you own has a Spanish BB the most common difference is the Mid is larger than the Spanish, unless you provide some more information i suggest that you go to your local bike shop and ask for their opinion or help. Good luck!
Q:how to replace wheel bearings on a 92 toyota celica 2.2 GT?
Those bearings are pressed in you need to take the spindle to a machine shop and have the old ones pressed out and the new ones pressed in I have used my air chisle to get them out and my bench vise to install them but its a pain in the a$$ good luck
Q:Question about wheel bearings on a 1999 Dodge 3500 van?
Use a bearing packer that you can hook to a grease gun, don't use the old hand method. Also make sure you are using grease suitable for disc brakes, this type of grease can withstand much higher temps without running out of the bearings. I use synthetic grease in my wheel bearings. Try it like this one time and see how it goes.
Q:Can ceramic bearings be used in motorcycle engines?
Don't waste money on ceramic bearings, they won't be of any benefit and that would show in your lap times being the same regardless of what you use. There is nothing wrong with well lubricated metal wheel bearings so spend your money on something that will make a difference to your racing like better brakes, better suspension, a mod to the motor, something positive .....

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