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Help Center30*47*23 Combined Needle Roller Bearings NKIB5906
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30*47*23 Combined needle roller bearings NKIB5906
A part of our products:
Features:
Needle roller/axial cylindrical roller bearings comprise an outer ring with radial and axial raceways,
shaft locating washers, an inner ring, a radial needle roller and cage assembly and axial cylindrical
roller and cage assemblies. The bearings are available in versions for screw mounting and not for
screw mounting.
Radial and axial
load carrying capacity
In addition to radial forces, the bearings can also support axial forces from both directions and tilting
moments.
Preload and internal clearance
The outer ring, inner ring and axial cages are matched to each other such that the bearing is axially
clearance-free after preloading by means of an precision locknut. The radial internal clearance is C2
according toDIN 620.
Bearings
for screw mounting
Needle roller/axial cylindrical roller bearings ZARF(L) have holes in the outer ring. These are used for
screw mounting directly on the adjacent construction or in a radial locating bore, Figure 1.
Due to screw mounting of the outer ring, the cover that would otherwise be required and the matching
work can therefore be dspensed with. The bearings are preloaded against the shaft shoulder by means
of aprecision locknut AM or ZM(A).
With seal carrier assembly
In the interests of a simpler design, a seal carrier assembly DRS, Figure 1, , is recommended. The seal
carrier assembly is centred on the outer ring and seals the bearing against outside influences
Pictures show
Drawing
Description
Needle roller bearing is a bearing unit composed of machined outer ring & inner ring,cage and
needle roller assembly featuring small section height,big load capacity & rigidity,compact
structure and small size,high rotating accuracy with the structure of disposed inner ring.
Needle roller bearing is characterized by multiple structures,broad adaptability and easy
installation.
It is widely used in automobile,machine toll,lathe,metallurgical,textile,printing industry and
etc. Various machinery equipment. With this kind of bearing,machine design can realize the
goal of small-scale & light weight.
Types of Designs:
This kind of bearing has multiple structural styles for the choice of customers,such as
narrow & broad series,with or without inner rings,cages,rib or sealings. It can be designed
according to the special structural requirements of customers as well.
Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on GB/T5801.
Mutual difference of needle roller diameter is 2 um,and the precision grade is class
G2(ISO GB/T309)
The diameter of inscribed circle conforms to tolerance grade F6 before the fitting of outer
ring with cage and roller assembly.
Bearing radial running clearance conforms to the value defined by class 0 group of GB/T4604
Special precision grade in based on GB/T307.1
For fuller information on the special requirement of bearing running clearance, inscribed circle
and precision grade,please contact our company.
Material:
Material for needle roller is GCr15 bearing steel,quench-hardening HRC60-65
Material for inner and outer rings is GCr15 bearing steel,quench-hardening HRC60-65
Material for cages is quality low-carbon steel or reinforced nylon.
Special Directions:
Bearing running clearance and inner-cutting roundness should be regulated according to different
conditions.
Machine tolls should be used for press-in fitting or thermal fitting when install the bearing.
Limited by plastic cages(suffixed with TN) and sealing-element material ,operating temperature
is -30℃--+100℃
For general-disposition design of bearings,refer to the relevant recommendation in the applied
technology of roller bearings.
Related models and specifications
| Model No. | d(mm) | F(mm) | D(mm) | B(mm) | B1(mm) | Mass(g) |
| NKIB 5901 | 12 | 16 | 24 | 16 | 17.5 | 43 |
| NKIB 5902 | 15 | 20 | 28 | 18 | 20 | 52 |
| NKIB 5903 | 17 | 22 | 30 | 18 | 20 | 58 |
| NKIB 5904 | 20 | 25 | 37 | 23 | 25 | 107 |
| NKIB 59/22 | 22 | 28 | 39 | 23 | 25 | 122 |
| NKIB 5905 | 25 | 30 | 42 | 23 | 25 | 134 |
| NKIB 5906 | 30 | 35 | 47 | 23 | 25 | 151 |
| NKIB 5907 | 35 | 42 | 55 | 27 | 30 | 247 |
| NKIB 5908 | 40 | 48 | 62 | 30 | 34 | 320 |
| NKIB 5909 | 45 | 52 | 68 | 30 | 34 | 380 |
| NKIB 5910 | 50 | 58 | 72 | 30 | 34 | 385 |
| NKIB 5911 | 55 | 63 | 80 | 34 | 38 | 555 |
| NKIB 5912 | 60 | 68 | 85 | 34 | 38 | 595 |
| NKIB 5913 | 65 | 72 | 90 | 34 | 38 | |
| NKIB 5914 | 70 | 80 | 100 | 40 | 45 |
A: 30% T/T in advance .70% against copy of B/L
B.30% T/T in advance .70% against L/C at sight
C.Western union
D.Paypal
E:50% in advance,the balance should be paid after seeing the picture of total goods.
F:Offical Bank Account
Why us
1.High speed, High Precision, Low Noise, Long Service Life
2.Wide Array of Applications
3.Large Inventories
4.Small order accept
5.Competitive Prices and High Quality
6.Various Brands
7.Require little maintenance
8. OEM is supported
9. Our company insists on the "quality first, credit first" business ideas and our product specification is well-founded. We have a good reputation in the international market by our perfect service and sufficient supply.
Contact person:
Send Inquiry to This Supplier
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