China Supplier High Precision Cylindrical Roller Bearing ,High Precision Chinese Factory NU 306 E
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 100000 set/month
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Product Specifications:
Cylindrical roller and race for line contact bearing. Load capacity is big, mainly bear radial load .
1. Friction coefficient is small, suitable for high speed limit speed close to deep groove ball bearings
2.N and NU type axial movement, can adapt to shaft caused by thermal expansion or installation error and shell the change of relative position, can be used for free end bearing
3. On the shaft or hole of the processing and the demand is higher, bearing outer axis relative deflection after installation to be kept under strict control, so as not to cause contactstress concentration
4. Inner ring or outer ring separable, easy to install and remove
Specification | Model No.: NU 306 E |
Brand Name: OEM | |
Size:30*72*19mm | |
Net weight: 0.370kg | |
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 |
Packaging & Delivery
Packaging Details: | plastics wrapping bearings - wrapping papers - polywoven bag - carton for outside package - wooden box /According to your order |
Delivery Detail: | 30-40days/according to your order |
Product Applications:
Cylindrical roller bearings are widely used in machinery and equipment, electric power, steel, metallurgy, petroleum,
chemical engineering, machine tool, spinning, car, electrical machine, precise instrument,
mining machinery, construction machinery, engineering machinery, railway.
- Q:Cylindrical roller bearings NUP2311E mounting dimensions: Da (max): 69Da (min): 64DB (min): 72DC (min): 80Da (max): 111What are the specific meanings of these dimensions? Thank you, master
- Da means shoulder diameter, that is to say, the maximum shoulder size is 69mm, and the minimum is 64mm
- Q:Why cylindrical roller bearings can not bear axial load?.
- Bearing bearing axial force or radial force is determined by the structure of the bearing, thrust ball bearings are also called plane bearings, which are mainly used to bear axial force; cylindrical roller bearings can bear radial forces and are not suitable to bear axial force.
- Q:What kind of material is used for cylindrical roller bearings?
- What's the material? The question is not good enough to answer? Usually bearing steel. And stainless steel, plastic. Carbon steel, iron, ceramics, etc.
- Q:Can cylindrical roller bearings bear high temperature?
- Bearing is not high temperature grease is not high temperature, a grease temperature does not exceed 120 degrees, high temperature will lead to bearing lubrication performance, unable to work, in fact, the bearing itself can be high temperature resistant.
- Q:Cylindrical roller and bearing outer ring processing is sheet metal forming?
- Bearing parts, the main size tolerances are fighting between 0.01 mm, ultra poor 1/1000 mm, are scrap. Tolerances for precision bearings are extremely stringent, such as the diameter of each steel ball (or roller) and the diameter of the inner and outer rings. Surface hardness of more than HRC60 (as a metal cutting tool material of high-speed steel, hardness is HRC65-68). High quality bearings, these are strictly controlled.
- Q:My notes is the former has a taper hole on the cone position preload, the latter is a nut. But the online information seems a little different. Are the preload methods for two direction thrust angular contact bearings and angular contact ball bearings the same?
- Dissimilarity！ The former is mainly used as the support of the shaft with larger load. The main prevention is the radial runout, which is usually used individually, so there is not much demand for the preload.
- Q:What are full cylindrical roller bearings?
- Full cylindrical roller bearingCommon cylindrical roller bearings1, single row full cylindrical roller bearingsNCFNJG2 、 double row full cylindrical roller bearingNNCLNNCFNNCNNFTwo, not common full cylindrical roller bearings1, full spherical cylindrical roller bearings2, CARB ring roller bearings
- Q:KOYO cylindrical roller bearings, //KOYO cylindrical roller bearings, how to determine the accuracy level?
- The allowable deviation of 1, the inner and outer diameter, width and the width of the assembly allowable deviation 2, roller diameter and the outer round round in group 3, the diameter of the chamfer size bounds value 4, the width of the allowable rotation accuracy (momentum and rotating body beating related projects) 1, inner ring and the outer ring allows for radial and axial beating 2, inner ring 3, allowing the lateral runout of outer surface inclination to allow changes in volume 4, the thickness of the thrust bearing raceway permissible variation
- Q:How to calculate the clearance of bearings, such as 23226 double row cylindrical roller bearings
- First of all for the bearing clearance calculation is a very complicated problem, because the bearing structure of different types, and the usage of different materials, the temperature of different factors such as the clearance is different, and because of the different structure types and some bearing bearing clearance is divided into radial clearance and axial clearance; also need to pay attention to the bearing clearance is usually divided into the following 1. conditions, clearance before installation, usually refers to the bearing manufacturers factory according to the standard to determine the clearance of bearing clearance. 2., after the installation clearance, because the bearing inner ring and the shaft is interference fit, when the bearings installed on the shaft, its inner ring will be as the amount of interference and expansion, resulting in smaller clearance of bearings. 3. clearance work, because the bearing is affected by load and rotating friction in the work, the temperature will gradually increase, will cause the bearing inner ring further expansion, which will make further changes in bearing clearance. However, the main clearance of the bearing is the largest (minimum) diameter of the raceway of the outer race of the bearing, the largest (minimum) diameter of the rolling body and the largest (smallest) diameter of the raceway of the inner race. For example, cylindrical roller bearings, its largest clearance = outer raceway raceway, maximum diameter of -2* roller minimum diameter - inner raceway minimum diameter derived, and conversely, for the smallest clearance. The average user of bearings actually doesn't need to know that.The other 23226 models should be the spherical roller bearing, not double row cylindrical roller bearing.I hope my answer will be of some help to you!
- Q:Thrust cylindrical roller bearings, the main use?
- Our factory uses the bearings of Changzhou Enke Bearing Co., Ltd., they have many kinds of bearings and meet various demands.
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China Supplier High Precision Cylindrical Roller Bearing ,High Precision Chinese Factory NU 306 E
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 100000 set/month
OKorder Service Pledge
OKorder Financial Service
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