Nsk nu224c3/ nu224 cylindrical roller bearing
Type: cylindrical roller bearing
Size:120x215x40mm
Id (inner diameter) bore: 120mm
Od (outer diameter):215mm
Width/heigh/thickness:40mm
Material: chrome steel, steel cage or brass cage
Weight:8.34kg
Cage :brass cage
Type:nu, n, nj, nup series
Precision class:p0, p6, p5, p4, p2
Features
1. The rollers and raceway for the line contact or offline access, radial load capacity is large, suitable for under heavy load and shock load.
2. The friction coefficient is small, suitable for high speed, the limit speed close to the deep groove ball bearings.
3. N and nu type axial movement, can adapt shaft caused by thermal expansion or installation error and shell the change of relative position, can be used for free end bearing.
4. On the shaft or hole processing the demand is higher, bearing outer axis relative deflection after installation to kept under strict control, so as not to cause contact stress concentration.
5. Inner ring or outer ring separable, easy to install and disassemble.
8.Application:large and medium-sized motor, locomotives, spindle, internal combustion engines, generators, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery, etc
9.Technical models
Skf 33209q tapered roller bearing
Specifications:
Type: tapered roller bearings, single row
Lubrication: oil or grease
Dimensions: 45x85x32mm
Id (inner diameter)/bore: 45mm
Od (outer diameter):85mm
Width/height/thickness: 32mm
Dynamic load ratingcr(kn):108kn
Static load rating cor(kn):143kn
Lubrication: oil preservative
Grease lubrication speed (r/min):5300
Lubricating oil speed(r/min):7500
Weight:1.55kg
Features: tapered roller bearings, according to the row number of rollers, are defined as single row, double row and four rows. The single row tapered roller bearings clearance should be adjusted when they are mounted. For double row and four row tapered roller bearings, the clearance can be provided when assembling them according to national standards, customers don't need to adjust it.
Application :
1. Auto wheel hub, auto engine, auto axle
2. Agricultural machinery, rotary plow bearings, tractor, water pump, oil engine harvester, seeder, tricycle, farm vehicle, cultivator
3.Engineering machinery, excavator, dozer, paver, loader, hoisting machinery, piling soil machinery
4. Steel mill machinery, oil field machinery, motorship machinery
5. Hardware tool, electric power tool, household appliance industry
6. Electronic toys, fitness equipment, building machinery
7. Series of pumps, antiseptic pump, water pump, submersible pump, sewage pump
8. Motor bearings, generator, hydroelectric generator
9. Machinetool, special purpose grinder, precision lathe
10. Printing machinery, woodworking machinery, textile machinery
11. Locomotive bearing, wind power generation set, heat energy generation set, hydroelectric power generation set fields
Nsk 7218bm angular contact ball bearing 90*160*30
Specifications:
Type: angular contact ball bearing
Lubrication: oil or grease
Dimensions: 90mm x 160mm x 30mm/metric
Id (inner diameter)/bore: 90mm
Od (outer diameter): 160mm
Width/height/thickness: 30mm
Dynamic load rating cr: 103kn
Static load rating cor: 88kn
Limiting speed:
Grease lubrication: 3, 200 rpm
Oil lubrication: 4, 300 rpm
Features: angular contact bearings are able to support radial load and axial load. As single row angular contact ball bearings can only support axial load in single direction, matched bearing mounting is often adopted to them as matched parts of bearings, preload for them is more convenient. Retainers are made of brass, synthetic resins or others subject according to individual bearing features and application conditions.
1) load capacities are higher than deep groove ball bearings of same dimensions;
2) used for bearing radial-axial combined loads or pure thrust loads;
3) low operating friction and high limiting speed.
Angular contact ball bearing include:
1) single row angular contact ball bearing
2) matched angular contact ball bearing
3) double row angular contact ball bearing
4) four-point contact ball bearing
Applications¡êoangular contact ball bearing is mainly applied on high speed, high precision and little axial load occasions, such as airplane engine main shaft, machine tool main shaft and main shafts of other high speed precision machine. It can also be applied on high frequency motor, steam turbine, oil pump, air compressor and printing machine etc. It is one of the bearings most widely used in machinery industry.
Skf 2206-2rsitn9 self-aligning ball bearing
Type: self-aligning ball bearing
Inside diameter: 30mm
Outside diameter: 62mm
Thickness: 20mm
Dynamic load ratingcr(kn):15.6kn
Static load rating cor(kn):4.65kn
Lubrication: oil preservative
Grease lubrication speed (r/min):¡a¡a
Lubricating oil speed(r/min):7500
Dimensions: 30x62x20mm/metric
Mass:0.26kg
Features:
Self-aligning ball bearing has two rows of balls and a common concave spheried raceways in the outer ring.
The bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing. It is particularly suitable for applications where considerable shaft deflections or misalignment are to be expected
Additions:the self-aligning ball bearing has the lowest friction of allrolling bearings, which enables it to run cooler even at high speeds.
With two structures of bore cylindrical or tapered and retainers made of steel sheet or synthetic resins, the bearings are characteristic of their spherically formed outer ring raceways allowing for misalignment within 3 degree deflection between inner ring and outer ring, so as to compensate concentricity and deflection errors.
Application:precision instruments, low noise motors, automobiles, motorcycles, metallurgy, mill, mining, oil, paper making, cement, sugar industry and general machinery.
