DWR Bearing Co., Ltd |
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Stainless Steel Spindle Cylindrical Roller Bearing Single Row NU 308 ECJ , 85mm Bore
Cylindrical roller bearing are of high load capacity and can
operate at high speeds because they use rollers as their rolling
elements. They can therefore be used in applications involving
heavy radial and impact loading.
The rollers are cylindrical in shape and crowned at the end in
order to reduce the stress concentrations. They are also suitable
for applications that require high speed because the rollers are
guided by ribs which are either on the outer or inner ring
Features of Cylindrical Roller Bearing
1. High radial load capacity,is suitable for heavy load and impact load.
2. Small friction, suitable for high speed,the limiting Speed is close to Deep Groove Ball Bearings
3. N,NU series can adapt to high temperature and allow error during installation.
4. inner ring and outer ring are separable,easy to install and take down
Basic Dynamic Load Rating:340kN
Basic Static Load Rating:335kN
Material of Rings and Balls: Chrome steel,Carbon steel, Stainless steel
Cage Material: Brass,Steel,Nylon
Cage material of Cylindrical roller bearing:
When the outer diameter is less than (inclusive) 400mm, solid brass cage or steel press cage are adopted for single row cylindrical roller bearing. When the outer diameter is more than 400mm, brass cage and pin-type cage are adopted for four row cylindrical roller bearing.
Application: motor, locomotives, autos,spindle,equipment, internal combustion engine, generator, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery, etc.
Single row: NU, NJ, NUP, N, NCF and NJG designs
Double row: NNU, NN and NNF designs
Quick description:
Bearing Model | NU 308 ECJ |
Type | Cylindrical Roller Bearing |
Bore Size (mm) | 40 |
Outside Diameter (mm) | 90 |
Width (mm) | 23 |
Mass (kg) | 0.65 |
Material | Chrome Steel, Carbon steel, Stainless steel |
Cage Material | Steel |
Number of Row | Single Row |
Precision Rating | P5. P6 |
Basic Dynamic Load Rating (Cr) | 340 kN |
Basic Static Load Rating (Cor) | 335 kN |
Limiting Speed | 4800 r/min |
Bearing No. | Boundary Dimensions (mm) | Basic Load Rating (KN) | Mass | |||||
d | D | B | C | Co | kg | |||
N308EM | NU308EM | NJ308EM | 40 | 90 | 23 | 76.8 | 77.8 | 0.65 |
N309EM | NU309EM | NJ309EM | 45 | 100 | 25 | 93.0 | 98.0 | 0.95 |
N310EM | NU310EM | NJ310EM | 50 | 110 | 27 | 105.0 | 112.0 | 1.20 |
N311EM | NU311EM | NJ311EM | 55 | 120 | 29 | 128.0 | 138.0 | 1.61 |
N312EM | NU312EM | NJ312EM | 60 | 130 | 31 | 142.0 | 155.0 | 1.94 |
N313EM | NU313EM | NJ313EM | 65 | 140 | 33 | 170.0 | 188.0 | 2.42 |
N314EM | NU314EM | NJ314EM | 70 | 150 | 35 | 195.0 | 220.0 | 2.90 |
N315EM | NU315EM | NJ315EM | 75 | 160 | 37 | 228.0 | 260.0 | 3.59 |
N316EM | NU316EM | NJ316EM | 80 | 170 | 39 | 245.0 | 270.0 | 3.90 |
N317EM | NU317EM | NJ317EM | 85 | 180 | 41 | 265.0 | 280.0 | 5.20 |
N318EM | NU318EM | NJ318EM | 90 | 190 | 43 | 290.0 | 320.0 | 6.17 |
N319EM | NU319EM | NJ319EM | 95 | 200 | 45 | 320.0 | 350.0 | 6.92 |
N320EM | NU320EM | NJ320EM | 100 | 215 | 47 | 355.0 | 380.0 | 8.24 |
N322EM | NU322EM | NJ322EM | 110 | 240 | 50 | 415.0 | 470.0 | 11.20 |
N324EM | NU324EM | NJ324EM | 120 | 260 | 55 | 440.0 | 552.0 | 14.10 |
N326EM | NU326EM | NJ326EM | 130 | 280 | 58 | 615.0 | 735.0 | 19.30 |
N328EM | NU328EM | NJ328EM | 140 | 300 | 62 | 665.0 | 795.0 | 23.70 |
N330EM | NU330EM | NJ330EM | 150 | 320 | 65 | 715.0 | 855.0 | 26.80 |
N332EM | NU332EM | NJ332EM | 160 | 340 | 68 | 860.0 | 1050.0 | 33.00 |
N334EM | NU334EM | NJ334EM | 170 | 360 | 72 | 795.0 | 1010.0 | 37.50 |
N336EM | NU336EM | NJ336EM | 180 | 380 | 75 | 905.0 | 1150.0 | 43.50 |
Bearing No. | Boundary Dimensions (mm) | Basic Load Rating (KN) | Mass | |||||
d | D | B | C | Co | kg | |||
N408M | NU408M | NJ408M | 40 | 110 | 27 | 90.5 | 89.8 | 1.15 |
N409M | NU409M | NJ409M | 45 | 120 | 29 | 102.0 | 100.0 | 1.77 |
N410M | NU410M | NJ410M | 50 | 130 | 31 | 120.0 | 120.0 | 2.26 |
N411M | NU411M | NJ411M | 55 | 140 | 33 | 145.0 | 141.0 | 2.95 |
N412M | NU412M | NJ412M | 60 | 150 | 35 | 148.0 | 144.0 | 3.20 |
N413M | NU413M | NJ413M | 65 | 160 | 37 | 185.0 | 191.0 | 3.92 |
N414M | NU414M | NJ414M | 70 | 180 | 42 | 205.0 | 210.0 | 6.40 |
N415M | NU415M | NJ415M | 75 | 190 | 45 | 254.0 | 265.0 | 7.03 |
N416M | NU416M | NJ416M | 80 | 200 | 48 | 275.0 | 284.0 | 8.25 |
N417M | NU417M | NJ417M | 85 | 210 | 52 | 312.0 | 325.0 | 9.50 |
N418M | NU418M | NJ418M | 90 | 225 | 54 | 350.0 | 360.0 | 11.00 |
N419M | NU419M | NJ419M | 95 | 240 | 55 | 400.0 | 445.0 | 13.60 |
N420M | NU420M | NJ420M | 100 | 250 | 58 | 450.0 | 500.0 | 15.50 |