HK 2812 Drawn Cup Needle Roller Bearings HK Series High Precision
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 900000 set/month
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Product Specifications:
Specification | Model No.: HK 2812 |
Brand Name: OEM | |
Size:28*35*12mm | |
Net weight: 0.020kg | |
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 |
Product Applications:
Needle roller bearings are mainly used in car engines, transmissions, compressors, cranes, etc.
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
FAQ:
WHY CHOOSE US ???
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
- Q: I have alot of wheels from the 1980's cuz i only ride the stuff from then. Well i have some of my wheels that the bearings will spread apart in once i have the wheel onto the truck. I would have the wheel to where it would wiggle on the truck so that way the wheel would spin nicely. But i have noticed that once i do some kickturns and what not, the wheel would start slowing way down and the cause of this would be with the bearings spreading even if i have spacers in each wheel. Some of my powell peralta wheels dont do it but a few of my other brand name ones do. Is there anyone that could give me some hints or ideas on how to fix this problem.
- you need to put the bearings in or grease, stick the bearings in the wheels then make sure the skateboard can move well but if it doesn't work just buy some new ones that are already made.
- Q: I am building my own longboard and i would like to go fast so what bearings shuld i go for and if you have any suggestions for wheels too that would be great.
- ABEC rating doesn't mean anything to skateboards. Take your board and drop it from chest height to the ground, now your bearings are rated far less than ABEC1. Just make sure they're clean and lubed and there'll be no difference in speed between $2 no-name bearings and $50 ceramics. Grab some VXB bearings. They're cheap and good. Instead of paying $45 for ABEC 9s, spend $45 and get 100 bearings (12 sets + 4 extra bearings), or spend $25 and get some with built-in spacers (makes sliding a lot smoother, unless you're using precision spacers in your normal bearings). As for wheels (which have a much larger effect on speed than bearings btw), 80a Retro ZigZags are some of the best all-around wheels. Very fast, grippy and smooth rolling. Other wheels to check out are 69mm/70mm 80a/82a Sector 9 Race Formulas, 80a or 83a Orangatang 4Prez, and Earthwing Road Rages or Smokers.
- Q: I'm getting some ABEC 5 bearings, but I don't know if I need them sealed or shielded. Right now I'm a beginner so I'm just cruising with the occasional hill if that makes a difference in what I need.
- Some people mistakenly call shields as seals. No one actually uses seals on skates or boards, they create too much drag. If the drag wasn't there, they would be great since they would actually keep water out. It doesn't matter if you get bearings with metal shields or the neoprene coated ones (more likely to be mistakenly called seals. The neoprene ones are all removable for cleaning and lubricating. Most metal shields are removable but occasionally you find non serviceable bearings that have shields that are permanently staked in place. With some work, you can remove the shields on non serviceable bearings by destroying one of them. You only need one shield that is the side of the bearing you see from the outside.
- Q: i have two different sets of bearings but some of them are messed up so i was wondering if i can put mix them up and put them in my board
- Yeah okorder
- Q: As stated, I have a 2003 Honda Civic EX, 2dr, MT. I have been noticing a progressively louder sound from the rear of the car. We just got new tires, and at first I thought it was that, but its getting louder. I checked everything out and nothing seems to be rubbing. The breaks are within spec and the emergency break is not dragging. Upon inspection, the left hub bearing seems tight. I removed the wheels and drums and it does not turn as freely as the right side. It is NOT loose, just tight. Could this be the source of my problem? And if so, Can I just repack the bearings or do I need to replace them? The part only comes as a complete unit, so I cannot buy just the bearing set.
- Even if they are not loose, the wheel bearings can be noisy. You have gone through the proper steps of checking to make sure nothing is rubbing and check the brakes. The rear wheel bearings come pre-assembled in the hub unit, so you'd have to get the hub unit and replace it as a whole. Fairly straight-forward repair: Remove the wheel, remove the drum, pop off the cap that covers the spindle lock nut (the cap can be reused), remove the spindle lock nut (22mm) and throw it out (should always use a new one once it is removed), slide off the hub assembly. Reinstall with new hub assembly in reverse order. Be sure to torque the hub lock nut to proper specs (134 lb-ft), as if it is overtightened/undertightened it can cause the new bearing to prematurely wear out.
- Q: I have recently purchased a longboard with abec 5 bearings. I have a regular board, with abec 7 bearings. I plan to use the longboard more, and i want to no if it will work to use the regular boards bearings for the longboard. Anybody know?
- regular skateboard bearings are the same as longboard bearings. i suggest getting bones reds . theyre cheap (15 bucks) and they last long. they have removable shields so theyre easy to clean. if you want a really good quality bearings, probably the bestest bearings in the world, get Swiss Ceramics. theyre expensive though (over 100 bucks) but theyre worths it.
- Q: My back wheel bearings fell out of my 2009 125cc foreign pit bike!!! any help on prices, sizes, and/or maintence?
- There should be a number stamped on the somewhere. Look under Wheel Bearings in your Yellow Pages and take them to a specialist. Or do it online. You may even be able to find an online wheel bearing shop if you google it and do a bit of research. I've found that most good-sized cities will have a bearing specialist or engineering shop who can help out.
- Q: All bearings are designed with tolerances to allow the moving parts to move, but how are wear limits determined? In other words, after time, the components will start to wear out and the bearing will become looser. Looking at some aircraft maintencance manuals, they provide wear limits in the radial and axial directions. But how are these wear limitis determined? Is there a particular calculation that is done or is an arbitruary number chosen?
- General ideas only. In the case of journal bearings with forced lubrication (oil pressure), increasing clearance results in oil pressure drop. Ideally, journal bearings hold an oil film which supports the rotating shaft and minimizes metal/metal contact. Automobile engines run for hundreds of thousands of miles using this strategy. Radial ball bearings will tolerate excess clearance (depending on the load) but the shafts they support often will not. In cases where oil seals are used, excess shaft play damages seals and permits leaking. In the case of motor or pump shafts, bearing slack permits rotor/stator contact or impeller/involute contact. Rotating masses are never perfectly balanced or axially aligned. Bearing slack multiplies unbalanced force and consequent load.
- Q: im thinking about buying bearings for my longboard. but idk there are open on one side are thay good .can some one help
- Providing you keep the shielding on the one side facing outwards. They should be fine like any other bearings, easy clean and lubing. However you'll have to service them more often. Buddy of mine has a similar case with the bones reds and they work superbly like any bearing out there. Either way your longboarding experience is not going to be affected by it in anyway.
- Q: i was just wondering which skateboard bearings where better. i have been skating ghetto bearings for about 4 years now and i think its about time for me to step it up. this is a question for the pros, which bearings are better Swiss Bones Labyrinth's, Swiss Bones Super Swiss 6, or the original Bones Swiss bearings? And is the difference between them big?
- YES!!! they are way better then reds. but me personally i dont like spending that much for bearings so i stick with reds cuz they last long and are just as good
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HK 2812 Drawn Cup Needle Roller Bearings HK Series High Precision
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 900000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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