Detailed Product Description
Precision Single Row Cylindrical Roller Bearing for Motor / Locomotive NU 20/500 ECMA
Model:NU 20/500 ECMA
Dimension:500x720x128mm
Bore Size:500mm
Outside Diameter:720mm
Width:128mm
Basic Dynamic Load Rating:2920kN
Basic Static Load Rating:5850kN
Material of Rings and Balls: Chrome steel,Carbon steel, Stainless steel
Cage Material: Brass,Steel,Nylon
Package: Usually made by plastic tube+anti-rust paper+box+carton
Terms of Payment: T/T(30% deposit in advance), Irrevocable L/C at sight, Western Union
Delivery Time: 3-25 days, according to the order quantity
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 20/500 ECMA |
Type | Cylindrical Roller Bearing |
Bore Size (mm) | 500 |
Outside Diameter (mm) | 720 |
Width (mm) | 128 |
Mass (kg) | 180 |
Material | Chrome Steel, Carbon steel, Stainless steel |
Cage Material | Brass |
Number of Row | Single Row |
Precision Rating | P5. P6 |
Basic Dynamic Load Rating (Cr) | 2920 kN |
Basic Static Load Rating (Cor) | 5850 kN |
Limiting Speed | 1100 r/min |
Feature:
Cylindrical rollers have linear contact with the raceway, and the bearings can carry heavier radial load. Applications are found in situations characterized by heavy load and shock load and also high rotation speed. The N type and NU type bearings can be movable along the shaft. liner bearing, line bearing, linear bearing, They can adapt to the position changes between the shaft and housing caused by the thermal expansion or the mounting error and are most suitable for free end shafts. NJ and NF types can accept certain axial load in one direction, and NH and NUP types can accept certain axial load in two directions. Inner ring and outer ring can be separable, and be they are convenient to mount and dismount. FC, FCD and FCDP types can carry comparatively heavy radial load and are mainly applied for mill rolls. liner bearings, line bearings, linear bearings, steel mill bearing, cylindrical roller bearing, heavy load bearing, double row bearing, single row cylindrical roller bering, double row cylindrical roller bearing, four row cylindrical roller bering, Large Cylindrical roller bearings, Large diameter cylindrical roller bearings, Custom Cylindrical roller bearings, Large size cylindrical roller bearings.
Applications:
These bearings are mostly found in middle-sized and large-sized motors, electricity generators, internal combustion engines, gas turbines, machine tool spindles, deceleration devices, unloading and lifting machines and other industrial machines.
Model | Boundary dimensions (mm) | Basic load ratings (KN) | Limiting speed (r/min) | Weight (KG) | separate thrust collar code |
d | D | B | B1 | Rsmin | R1smin | Fw(Ew) | dyc_Cr | stc_Cor | Old_spec | Designations |
NJ2220 | 100 | 180 | 46 | 10 | 2.1 | 2 | 120 | 260 | 385 | 3200 | 3800 | 5.6 | HJ2220 |
NU2220 | 100 | 180 | 46 | 10 | 2.1 | 2 | 120 | 260 | 385 | 3200 | 3800 | 5.6 | HJ2220 |
NJ2240 | 200 | 360 | 98 | 14 | 4 | 4 | 244 | 905 | 1600 | 1500 | 1800 | 45.5 | HJ2240 |
NU2334 | 170 | 360 | 120 | 16 | 4 | 4 | 220 | 1160 | 1858 | 1400 | 1700 | 61.1 | - |
NJ2334 | 170 | 360 | 120 | 14 | 4 | 4 | 220 | 1160 | 1858 | 1400 | 1700 | 62.5 | - |