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Precision Cylindrical Roller Bearings: N/NJ/NU/NUP Cylindrical Roller Bearing

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Features

WD Precision Cylindrical Roller Bearings have many designs, dimension series and sizes. The majority is single row cylindrical roller bearing with a cage. Single and double row full complement cylindrical roller bearing (without cage). WD Cylindrical roller bearing with a cage can accommodate heavy radial loads and operate at high speeds. Full complement bearings are suitable for very heavy radial loads at moderate speeds.
The rollers of WD cylindrical roller bearings are key components. Their geometry, the so-called logarithmic profile, provides an optimum stress distribution in the contact zones in the bearing. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. The benefits derived from this compared with traditional designs include enhanced operational reliability and a greater insensitivity to misalignment.
The range of WD cylindrical roller bearings comprises the basic types:
WD single-row cylindrical roller bearings: caged, mainly of the NU, NJ, NUP and N designs;
WD double-row cylindrical roller bearings: caged, mainly of the NNUand NN designs;
WD single-row full complement cylindrical roller bearings: mainly of the NCF and NJG designs;
WD double-row full complement cylindrical roller bearings:, mainly of the NNF design;

Technical Parameters

Precision Cylindrical roller bearings,split roller bearings,full complement roller bearings, double-row cylindrical roller bearings,SL series Precision Cylindrical roller bearings,split roller bearings,full complement roller bearings, double-row cylindrical roller bearings,SL series
d D B rsmin Ew Fw Mass CrKN CorKN Limiting
speed 		Bearing
Code 		D1min D1max D2min D3min D4max D5min D6max
15 35 11 0.6 30.3 19.3 0.047 12.7 10.4 22000 N202E 17.4 18.5 20 22 32.6 31 29
15 35 11 0.6 30.3 19.3 0.049 12.7 10.4 22000 NJ202E 17.4 18.5 20 22 32.6    
15 35 11 0.6 30.3 19.3 0.048 12.7 10.4 22000 NU202E 17.4 18.5 20 22 32.6    
                                   
                                   
17 40 12 0.6 35.1 22.1 0.068 17.6 14.6 18000 N203E 21 21.5 23 28 36 36 34
17 40 12 0.6 35.1 22.1 0.07 17.6 14.6 18000 NJ203E 21 21.5 23 28 36    
17 40 12 0.6 35.1 22.1 0.069 17.6 14.6 18000 NU203E 21 21.5 23 28 36    
17 40 12 0.6 35.1 22.1 0.073 17.6 14.6 18000 NUP203E 21 21.5 23 28 36    
                                   
17 40 16 0.6 35.1 22.1 0.053 24 22 18000 NJ2203E 21 21.5 23 28 36    
17 40 16 0.6 35.1 22.1 0.051 24 22 18000 NU2203E 21 21.5 23 28 36    
17 40 16 0.6 35.1 22.1 0.055 24 22 18000 NUP2203E 21 21.5 23 28 36    
                                   
17 47 14 1 40.2 24.2 0.124 25.5 21.2 16000 NJ303E 21.2 23.5 25 28 42.8    
17 47 14 1 40.2 24.2 0.122 25.5 21.2 16000 NU303E 21.2 23.5 25 28 42.8    
17 47 14 1 40.2 24.2 0.127 25.5 21.2 16000 NUP303E 21.2 23.5 25 28 42.8    
                                   
                                   
20 47 14 1 41.5 26.5 0.112 27.5 24.5 16000 N204E 24 26 29 32 41 43 40
20 47 14 1 41.5 26.5 0.117 27.5 24.5 16000 NJ204E 24 26 29 32 41    
20 47 14 1 41.5 26.5 0.114 27.5 24.5 16000 NU204E 24 26 29 32 41    
20 47 14 1 41.5 26.5 0.119 27.5 24.5 16000 NUP204E 24 26 29 32 41    
                                   
20 47 18 1 41.5 26.5 0.15 32.5 31 16000 NJ2204E 24 26 29 32 41    
20 47 18 1 41.5 26.5 0.146 32.5 31 16000 NU2204E 24 26 29 32 41    
20 47 18 1 41.5 26.5 0.154 32.5 31 16000 NUP2204E 24 26 29 32 41    
                                   
20 52 15 1.1 45.5 27.5 0.156 31.5 27 14000 NJ304E 24 27 30 33 45    
20 52 15 1.1 45.5 27.5 0.153 31.5 27 14000 NU304E 24 27 30 33 45    
20 52 15 1.1 45.5 27.5 0.16 31.5 27 14000 NUP304E 24 27 30 33 45    
                                   
20 52 21 1.1 45.5 27.5 0.219 41.5 39 14000 NJ2304E 24 27 30 33 45    
20 52 21 1.1 45.5 27.5 0.215 41.5 39 14000 NU2304E 24 27 30 33 45    
20 52 21 1.1 45.5 27.5 0.224 41.5 39 14000 NUP2304E 24 27 30 33 45    
                                   
                                   
25 47 12 0.6 41.5 30.5 0.083 13.4 12 28000 NU1005 27 30 32 33 34    
                                   
25 52 15 1 46.5 31.5 0.135 29 27.5 15000 N205E 29 31 34 37 46    
25 52 15 1 46.5 31.5 0.14 29 27.5 15000 NJ205E 29 31 34 37 46    
25 52 15 1 46.5 31.5 0.137 29 27.5 15000 NU205E 29 31 34 37 46    
25 52 15 1 46.5 31.5 0.145 29 27.5 15000 NUP205E 29 31 34 37 46    
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WD Bearing Group

Headquarter: 270,Zhongshan Road ,Wuxi ,P.R China,214002
Direct Line: +86-510-8279 1933
Email: sales@wd-bearing.com