Best Price Needle Roller Bearing K 12x15x13
C0,C2,C3,C4,C5 is available
Rubber or Metal
Vibration Level code
Regular export packing
Plastic drum+White box+ carton
industrial packaging or as your requirement
3-7 days after receiving your payment
Port of shippment by sea
Place of Origin
1.High Precision Needle Roller Bearing
2.ISO Standard Bearing
3.High quality &competitive price
4.Many famous brand is available
5.Low Noise & Long life
1. Manufacturer,the most competive price and good quality
2. Perfect group of technical engineers give you the best support
3.Well-trained group of international sales provide the best service
4.OEM brand aviliable
5.Rich stock and quick delivery
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.
Sample Lead-times: generally 3-5 workdays.
Production Lead-times: 3-5 days after get payment or as contract required
- Q:Needle roller bearing is also called cam bearing?
- According to the ball bearings, there are ball bearings, cylindrical roller bearings, tapered roller bearings, needle roller bearings belong to cylindrical roller bearingsIt seems that the cam bearings have not been heard
- Q:How much speed can the needle bearing of inner bore 17mm bear?
- There are many kinds of needle roller bearings, which do you think?
- Q:Which method should be used for axial fixing of needle roller bearing in stamping outer ring?
- For the shaft, the bearing seat is fixed in the case, if the load direction remains unchanged, then take the shaft and cone fitting, the bearing seat and the outer loose. But the press pin of the outer ring is different. The outer ring and the bearing seat of the outer ring needle roller bearing must be tightly matched, or interference fit, because the roundness of the raceway of the outer ring can be ensured. However, another function of interference fit is to a certain degree of fixed outer ring. For needle rollers, most of them are sufficient. Do not forget the characteristics of needle roller bearings - they do not bear axial force. Then, when installing, can I use the seat block to limit the position? The answer was No. Please note the stamping of the outer ring bearing, both sides are asymmetrical. In order to fit the needle and cage, one lip of the outer ring needs annealing so it is very soft. Because it is very soft, so the installation of this side can not be pressed to the end cap or shoulder and so on. The correct installation method is the installation tool and do a simple calculation of some, there is no longer enough.
- Q:What are the differences between needle roller bearings and cylindrical roller bearings?
- With the same diameter, the needle roller bearings have smaller radial sizes and smaller carrying capacity.
- Q:What is the needle roller bearing model with outer diameter 21 and inner diameter 16?
- The outer diameter of 21 needle bearings with 16, the market is not available.The outer diameter of 21 needle roller bearings through 15, some models are hk1512.
- Q:Needle roller bearings are how to process the needle, so smooth finish?
- The process of needle: blank forming, deburring, heat treatment, coarse and fine grinding, end rolling surface, super finishing rolling surface polishing or sawdust.For flat head or taper head needle roller, such as blank forming, it is difficult to guarantee the length and size tolerance, and the grinding double end process can be increased. If the convex generatrix rolling surface is needed, it can be carried out directly in the process of super finishing, rolling or channeling.Needle roller bearing (needlebearing) is a roller bearing with cylindrical roller, relative to its diameter, the roller is thin and long. This roller is called needle roller. Although it has a small section, the load bearing capacity of the bearing is still high, with thin and long needle bearing roller (roller diameter of D = 5mm, L/D = 2.5, L roller length), so the radial structure is compact, the minimum diameter of the diameter and load capacity and other types of bearings, bearing the same, especially for the radial installation size limited. According to the use of different occasions, can choose the inner ring of the bearing or needle roller and cage assembly, the shaft neck surface and the surface of shell holes matched with a bearing directly as the bearing inner and outer rolling surface, in order to ensure the load capacity and operating performance and have the same ring bearing, shaft or housing bore raceway surface hardness the machining precision and the surface quality of bearing ring raceway and similar. This kind of bearing can only bear radial load. The needle roller bearing for stamping outer ring is needle roller bearing with thin stamping forming outer ring.
- Q:Needle roller bearing model NK what does it mean?
- Is prefix, needle classification of a, NK is not with inner ring, NKI is with inner ring, different brand name is not the same
- Q:What is the bearing capacity of needle bearing and copper sleeve?
- The copper sleeve and the shaft are surface contact, and the bearing capacity is large;The needle roller of needle roller bearing is several line contact, and it has less bearing capacity than copper sleeve;The sliding friction, friction force is large, suitable for low speed and heavy load, preferably with good lubrication, in static pressure under the condition of high speed, such as grinding machine is of high speed and heavy load static and vibration resistance than good bearing;The latter is rolling friction, and the transmission efficiency is higher, suitable for medium speed.
- Q:Working principle of one-way needle roller bearings
- The main structure of the unidirectional bearing EG unidirectional roller bearing EG-- | stamping outer ring needle roller clutch (one-way bearing) can be used as a converter, a non-return device, overrunning clutch. HF (needle roller clutch): composed of stamping outer ring and plastic cage. The cage can be provided with plastic spring or stainless steel leaf, guide roller, roller, roller and needle on outer ring as locking device. HFL (clutch and bearing assembly): support bearings are mounted on both sides of the needle clutch and bear radial loads. The needle bearings and plastic cage assemblies are used as supporting bearings
- Q:Many one-way needle roller bearings have small holes in the inner and outer rings. What's the function of these small holes?
- It should be the oil storage hole, whose main function is to store grease and lubricate the needle roller.
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