Why choose E-ASIA BEARING?
1. .Rolling mill bearing is HOT sale products at E-ASIA factory. We have steady rolling mill customer at china, they think our cylindrical roller bearing have advantage as below:
A. If you choose SKF, we can offer you original SKF with lower price for you.
We are professional agency of SKF, NSK, NTN, INA, TIMKEN, KOYO, ZWZ, HRB.
B. If you choose ZWZ, the quality is almost better like SKF. But price is much lower than SKF. we are biggest agent for ZWZ, ZWZ senior engineer can solve any technology questions for rolling mill factory, even we can guide customers how to use bearings at your factory.
C. If you choose E-ASIA, our quality is almost the same like ZWZ quality, but price is much lower than ZWZ. Because our factory have exquisite technology and experience to produce rolling mill bearings.. we can control raw material cost for you.
Design:
Because of the need for frequent roll changes, the "Kombi" bearings are mounted with a loose fit on the roll necks. To alleviate the inevitable wear, the cylindrical roller bearings have a helical groove in the inner ring bore and radially extended grooves in the side faces of both inner and outer rings . The inner ring of the tapered roller bearings has a clearance fit on the roll neck.
An intermediate ring with annular groove and lubrication holes is positioned between the two outer rings of the tapered roller bearing. The designation suffix HA1 signifies that the inner and outer rings are case hardened.
Dimension:
The dimensions of the combined cylindrical roller/tapered roller bearings have the same dimensions as the four-row tapered roller bearings traditionally used as work roll bearings. .
Tolerances:
ZWZ"Kombi" bearings are generally produced with dimensional accuracy to tolerance class P6 specifications. The running accuracy corresponds to tolerance class P5 specifications. Classes P6 and P5 conform to ISO 492:1994, classes 6 and 5, respectively.
Internal clearance:
The internal clearance has been chosen to suit the application, i.e. the radial internal clearance of the cylindrical roller bearings of the smaller bearings (d ≤ 400 mm) lies within the C2 range and that of the larger bearings within the Normal radial internal clearance range. The axial internal clearance of the tapered roller bearings is between 40 and 80 μm for the smaller sizes and between 350 and 400 μm for the larger.
Cages:
The cylindrical roller bearings are fitted with a machined brass cage (fig 1) or a window-type cage of steel (fig 2). The tapered roller bearing has two steel window-type cages (fig 3).
Speeds:
In operation, relative movements occur between the inner rings of the "Kombi" bearings and there will be an increase in friction between the side faces of the rings at high speeds. If the bearings are to be used at speeds in excess of 12 m/s, it is recommended that the ZWZ application engineering service be consulted.
Load carrying capacity and life :
The basic dynamic and static load ratings are given in the product table for each row of rollers. If assistance is required in calculating bearing life, please contact the SKF application engineering service.
Application:
Rolling mill bearings, is used in metallurgy, mining and other mill roll neck, drum on the use of bearing. Usually adopts the cylindrical roller bearings under radial load, deep groove ball bearing or angular contact ball bearings, or radial or thrust design of tapered roller bearing axial load. Now most of the lubricating oil and gas or oil mist lubrication way of lubricating and cooling bearing.
Four row cylindrical roller bearing and six row cylindrical roller bearings for rolling mill almost all roller neck, roller and rolling press. Compared with other roller bearing, the bearing friction and low. Since these bearings are mounted with an interference fit on the roll neck, especially suitable for rolling high speed rolling mill application. These bearing low cross section allows the use of relatively large diameter compared with roll roll neck diameter. Due to a lot of roller, the radial load capacity is very high. Multiple row cylindrical roller bearings can only bear the radial load. Therefore, these bearings and deep groove ball bearing or angular contact ball bearings, or radial or thrust tapered roller bearings are installed together design, by the latter under axial load. The four column and six row tapered roller bearings are separate, namely with integral flange of the bearing ring and the roller and cage assembly can be separated type bearing ring mounted separately, or all bearing parts are respectively installed. It was fairly simplified bearing installation, maintenance and inspection. Inner bearing can withstand a certain limit axial displacement of the shaft relative to the bearing seat. Four row cylindrical roller bearing with a cylindrical bore, a number of dimensions with a tapered bore bearing can also supply. Bearings with a tapered bore can be installed in the process of adjustment, in order to get a certain radial internal clearance or preload.
| HOT products | ZWZ SKF BEARINGS. NJ2207ETN1 speed reducer gearbox We the biggest ZWZ SKF agent at china.We will offer you original ZWZ SKF bearing with comparative price |
| Greese/Oil | as your requirement, such as SRL ,PS2, Alvania R12 and so on. |
| Series | any bearing types you can find at E-ASIA |
| Ring Material | Chrome Steel ,Carbon steel,Stainless steel,Steel |
| Tolerance grade | GB/T307.1-205 |
| ID Size | 0.8~1600mm |
| Quality standard | ISO 9001:2000 standard |
| Precision | P0 P6 P5 P4 Z1 Z2 Z3 Z4 |
| Steel pressed cage | bending claw form or rivet form . brass or steel material |
| Delivert Date | Normally ready goods and stock within 7 days |
| Payment Term | L/C,T/T ,D/P,D/A, Western Union |
| Service | Normal bearings on stock.just send me the types you need. OEM bearings ,produce as per your drawing shows |
| Package | Single original box or according to buyers requirement. Wooden package for sea freight |
| Details | We can supply all kinds of Deep Groove Ball Bearing bearing which are widely used in machinery, motorcycles, agriculture machinery, bicycle and fitness equipments.rolling mill machine// printing machine…… |
| 1.Assembly 2.Windage test 3.Cleaning 4.Rotary test 5.Greasing and gland 6.Noise inspection 7.Appearance inspection 8.Rust prevention 9.Product packaging 10.accept third department inspect 11Best after sell service, and we will be your life supply | |
| Mission | Fast delivery Comparative price Best SKF NSK NTN TIMKEN KOYO NACHI ASAHI THK UBC ASK ZKL FYH RHP SNF bearing quality One time business, One life friend. |
Cylindrical roller bearing some kinds of type:
1) Single Row Cylindrical Roller Bearings without inner Ring rib (NU type)
2) Single Row Cylindrical Roller Bearings with single inner ring rib( NJ type)
3) Single Row Cylindrical Roller Bearings with single inner ring rib and loose rib (NUP type)
4) Single Row Cylindrical Roller Bearings without out ring rib ( N type)
5) Single Row Cylindrical Roller Bearings with single inner ring rib and thrust separate ring(NJ+HJ type)
6) Single Row Cylindrical Roller Bearings with single out ring rib (NF type)
7)Double Row Cylindrical Roller Bearings With inner ring rib (NN type)
8) Double Row Cylindrical Roller Bearings with outer ring rib (NNU type)
9) Double Row Cylindrical Roller Bearings with outer ring rib (NNF type)
10)Four Row Cylindrical Roller Bearings (FC,FCD,FCDP types)
Roller Bearing Clearance:
No seal single row cylindrical roller bearing and double row cylindrical roller bearing use C3
Cylindrical roller bearing friction and speed:
Full cylindrical roller bearing roller contact with each other, and in the contact area that rotates in the opposite direction, make the lubrication between roller is difficult to form, so full cylindrical roller bearing friction at least take cage cylindrical roller bearing two times.Produce fever,no cage bearing speed can't reach with cage bearing speed.
