HK 0306 Drawn Cup Needle Roller Bearings With Open Ends

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Loading Port:
China main port
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Min Order Qty:
10 set
Supply Capability:
100000 set/month

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Chrome Steel

Bore Size:

3 mm

Outside Diameter:

6 mm

Model Number:

HK 0306 needle roller bearing

Seals Type:


Number of Row:

Single Row

Place of Origin:

Shandong, China (Mainland)

Precision Rating:


Packaging & Delivery

Packaging Details:1. industry packing: industry paper or tube + carton+ pallet 2. individual packing: single colour box+ carton+ pallet 3. based on the customers' requirement
Delivery Detail:1) within 5 days for stock 2) 18-25 days for big quantity


Q:  I have a urgent order , and want to find a good supplier in short time ,what should i do ?

A: Please send your inquiry to me ,and tell me ,the model ,quantity ,material ,package ,precision ,you need ,i will give you a quick response.


Q:  How can i get a price with a discount ?

A:  Discount according to orders .Bigger order ,less money every bearing will cost ,then discount will be bigger . 


Q:  I have a trial order ,the quantity is little ,could you manufacturing it for me ?

A:  Please contact me ,i will tell you the MOQ.If you also need we design the single box for you ,we could make it for you ,and the extra cost of the order will return you by next official order.


Q:  I don’t know your factory before ,could you tell me which company you are cooperating now ? I want to get to know your factory?

A:  Sorry ,this is our company regulation :we should not let the information of our customer out ,in the same time ,we also keep your information confidential.If you want to know more information ,you could get some free sample from our factory or visit factory if you have the time .


Q:  Does your company could accept D/P or D/A payment terms?

A:  The payment terms of our company is :30% deposit by T/T or West Union ,70 % balance against the copy of B/L.


Q:Now i have a important order ,the quality must be good ,and my customer will test the goods when receive it ,the quality must be good ,can i trust you ?

A:Our manufacturing factory was founded in August 1998, with so many years professional experience,if you need some certificate to show for your customer ,please inform us ,we believe could help you to enlarge your market!


HK 0306 Drawn Cup Needle Roller Bearings With Open Ends

HK 0306 Drawn Cup Needle Roller Bearings With Open Ends


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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:In skateboarding, What does ABEC mean for the bearings?
Pretty much nothing. It is a measure of precision for high speed machinery where vibrating shafts are a problem. Way higher speeds than wheels on skate boards or inline skates. In some cases, higer abec ratings can cause extra drag in the bearings because of the smaller gaps inside the bearing. Some companies (Zero Drag, Bones, Twin Cam) have designed their best bearings to have lower drag by not meeting even the ABEC 1 standard but with the tolerances close in the areas needed to make them run true in your wheels.
Q:how can i make the bearings in my skateboard go faster?
Bones Swiss or sawblade bearings, tensor street bearings
Q:Are ABEC 7 bearings good?
yes they are pretty good, but they don't tend to last that long. if you want to get a good or decent pair of bearings, get bones reds.
Q:what skateboard trucks and bearings?
Ok so first off don't buy cheap made trucks or bearings, I've had cheap bearings there slow, get dirty fast, and all my abecs fell out. And I've never had problems with trucks but I've heard of them snap and alot of other bad things. Secondly, buying better quality will last you a butt ton longer. Some brands of trucks are: Independent,Thunder,Theeve,Tensor,and Venture. Some bearing brands:Bones,Shake Junt,Spitfire,and Shorty's. P.S. get Bones Reds bearing their cheap but last at least a year or better and their really fast. Hope this helped.
Q:what kind of bearings are great for speed on skateboards?
Don't use WD-40 it ***** up your bearings. To lube them just take them out of the wheels and usually the inside part isn't covered and just put in Bones Speed Cream or some other skateboard company lube in them. Sometimes the inside part is covered, if it is you might be able to take it off but sometimes you can't and the ones that you can't take them off then you can't lube them.
Q:What is bearings on a skateboard?
the bearings are what make the wheels move on the trucks and it holds the wheels to the trucks .. its the thing inside the wheels and it can be any color like mine are red
Q:Roller needle roller bearings can be used directly as a wheel?
Yes, it's the roller itself. However, as the use of wheels is not so good control, because the surface of the bearing itself after finishing processing, very smooth, friction will be very small.
Q:What are the greatest skateboard bearings?
Speed Metal
Q:out of the three skateboard bearings which was is the fastest?
sorry to assert yet it is surely the worst set of bearings many times 5 is seen mediocre and seven is acceptable yet in the top it in hassle-free terms concerns in case you skate rapid or not in case you ever wanted to bypass with swifter greater effective bearings bypass with autonomous bearing or the terrific of bearings~ Bones Swiss!

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