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Track rollers with cylindrical rolls - NNTR Series

Track rollers with cylindrical rolls - NNTR Series

The rollers of this type of bearing have a very thick outer ring in order to guarantee the mechanical strength to reduce deformations due to loads and to bear high impacts.
The ring is cambered in order to prevent possible concentration of loads on the side bands of the bearing ring, to reduce the contact pressure, so less wear and longer life of the runway.
This type of product is a unique group and, being equipped with a pivot with threaded shank, it is very easy to install.
The full complement cylindrical roller set allows to bear high specific pressures and impacts deriving from the use of these bearings as pressure rollers, cam followers and conveyor belt rollers. They are suitable for bearing loads with axial components.

Track rollers with cylindrical rolls - NNTR Series

Intecom Code
International Code
 Peso Dimensioni (mm) Coeff.
di carico		 Carico
limite
di fatica		 Numero
di giri2)
d D B C D1 d2 d3 r1 r2 n1) din. stat.
 
g
  
h10
          
min
min
n°
CW
KN
C0W
KN
PUW
KN
nD Grasso
min -1
NNTR50x130x65-2ZL
RSU 50-130
5,2
50
130
65
63
80
63
6
2,0
3
3
226
285
37
1.100
NNTR55x140x70-2ZL
RSU 55-140
6,4
55
140
70
68
91
73
4
2,0
3
3
275
365
44,5
850
NNTR60x150x75-2ZL
RSU 60-150
7,8
60
150
75
73
97
78
4
2,0
3
3
310
420
53
800
NNTR65x160x75-2ZL
RSU 65-160
8,8
65
160
75
73
103
82
5
2,0
3
3
335
445
56
700
NNTR70x180x85-2ZL
RSU 70-180
13,0
70
180
85
83
115
92
5
2,0
3
3
430
590
75
600
NNTR80x200x90-2ZL
RSU 80-200
16,8
80
200
90
88
127
102
5
2,0
4
3
510
700
87
500
NNTR90x220x100-2ZL
RSU 90-220
22,5
90
220
100
98
146
119
5
2,5
4
3
630
910
104
400
NNTR100x240x105-2ZL
RSU 100-240
28,0
100
240
105
103
160
132
6
2,5
4
6
720
1080
118
340
NNTR110x260x135-2ZL
RSU 110-260
35,6
110
260
115
113
174
143
6
2,5
4
6
860
1310
143
300
NNTR130x310x146-2ZL
RSU 130-310
65,2
130
310
146
144
165
165
8
3,0
5
6
1290
2010
216
240

Cuscinetto con tenuta a labbro (suffisso .2RS); Temperatura ammissibile di esercizio -30°C fino a 120°C
1) N° di fori per lubrificazione interna
2) N° di giri con funzionamento continuo e lubrificazione a grasso

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