NJ2856M Bearing 280x350x42mm
The NJ2856M bearing is a Cylindrical Roller Bearing with an inner diameter of 280 mm , an outer diameter of 350 mm, a width of 42 mm. It typically uses P0;P6;P5;P4 grade precision tolerances and Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
NJ2856M Chrome Steel Cylindrical Roller Bearing
Bearing New No. Bearing Old No. ID(mm) OD(mm) Width(mm) Weight(kg)
Detaild Informations:
- Item: NJ2856M 280X350X42 Bearing
- Type: Roller bearing
- Lubrication: Oil or Grease
- Dimensions: 280mm x350mm x 42mm/Metric
- ID (inner diameter)/Bore: 280mm
- OD (outer diameter): 350mm
- Width/Height/thickness: 42mm
- Weight: 15 kg
- Number of Row :Single Row/Double Row
- Material:Chrome Steel(GCR15);High Quality Carbon Steel;Stainless Steel or ceramic
- Clearance:C0,C2,C3,C4,C5
- Vibration :Zv1,Zv2 and Zv3
- Greese : As you requirement, such as SRL ,PS2, Alvania R12 and so on
- Certifications : ISO 9001:2000
Description:
A. Design
In bearings of this type, the cylindrical rollers are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds.
There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs).
NJ design The outer ring has two integral flanges and the inner ring one integral flange. The bearings are therefore suitable for the axial location of a shaft in one direction.
NU design The outer ring of bearings of the NU design has two integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself.
N design The inner ring has two integral flanges and the outer ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings.ECT
B. Application
Cylindrical roller bearings mainly used in all kinds of engine industry, including electrical engine, machine tool, oil, rolling mill loading and unloading machine and so on.
1). Single row application:
Cement preparation equipment: Such as shredders, vertical milling machine, ball mill and mill; Conveyor drives; Gearbox, -aligning pillow block bearings; Ear axis, rotary kiln and so on.
Power generation equipment: Such as grinding machines, gear boxes and gear devices.
Oilfield Equipment: Drunk pumps, winches, swivel, pulley hook, fixed pulley, pulley and the top drive and so on.
2). Double row application:
Gear drive
Hot cutting device used in the factory
Rolling Mill
Machine Tools
3). Four row application:
Support roll
Work roll
Concrete crusher ECT
C. Models:
Cylindrical roller bearings types we can offer:
NU1004 series: NU1004 1005 1006 1008 1010 1011 1012 1013 1014 1018 1021 1022 1024 1026 1028 3028 1030 1032 1034 1036 1038 1040 1044 1048 1052 1056 1060 1064 1068 1072 1076 1080
NN3005 NN3005: 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3024 3026 3028 3030 3032 3034 3036 3038 3040 3044 3048 3052 3056 3060 3064 3068 3072 3076 3080 3092
N/RNU/NJ/NF/NUP/NU202: 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 224 226 228 230 232 234 236 238 240 244 248 252 260
NU/N/NF/NJ/RNU/NUP303 : 303 304 305 306 307 308309 310 311 312 313 314 315 316 317 318 319 320 321 322 324 326 328 330332 334 336 338 340 344 348 360
NJ202 :NJ202 203 204 205 206 207 208 209 210 211 212 213 214 215
NU1004 series :NU1004 1005 1006 1008 1010 1011 1012 1013 1014 1018 1021 1022 1024 1026 1028 3028 1030 1032 1034 1036 1038 1040 1044 1048 1052 1056 1060 1064 1068 1072 1076 1080
NF203 203 204 205 206 207 208 209 210 211 212 213 214 215
NUP202 202 203 204 205 206 207 208 209 210 211 212 213 214 215 ECT
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