Nutr track roller


Track rollers - NUTR track roller

Technical Drawing and Exploded View  - NUTR track roller



1. Seal sheet
2. Support thrust ring
3. Outer ring
4. Cylindrical rollers
5. Inner ring
6. Support thrust ring
7. Seal sheet


Technical Data - NUTR track roller

C.R. rif / ref d (mm) D (mm) B (mm) C (mm) d1 (mm) r min. (mm) r1 min. (mm) Cw (KW) Cow (KW) Vel Max Speed (RPM min-1)
NUTR 15 15 35 19 18 20 0,6 0,3 15 16,8 6500
NUTR 17 17 40 21 20 22 1 0,5 18,4 22,6 5500
NUTR 15 42 15 42 19 18 20 0,6 0,3 18,1 21,9 6500
NUTR 17 47 17 47 21 20 22 1 0,5 21,3 28 5500
NUTR 20 20 47 25 24 27 1 0,5 28 35 4200
NUTR 20 52 20 52 25 24 27 1 0,5 31,5 41 4200
NUTR 25 25 52 25 24 31 1 0,5 29 37,5 3400
NUTR 25 62 25 62 25 24 31 1 0,5 35,5 50 3400
NUTR 30 30 62 29 28 38 1 0,5 40 50 2600
NUTR 30 72 30 72 29 28 38 1 0,5 47,5 64 2600
NUTR 35 35 72 29 28 44 1,1 0,6 44,5 60 2100
NUTR 35 80 35 80 29 28 44 1,1 0,6 51 72 2100
NUTR 40 40 80 32 30 51 1,1 0,6 55 75 1600
NUTR 45 45 85 32 30 55 1,1 0,6 56 78 1400
NUTR 40 90 40 90 32 30 51 1,1 0,6 66 95 1600
NUTR 50 50 90 32 30 60 1,1 0,6 57 81 1300
NUTR 45 100 45 100 32 30 55 1,1 0,6 71 107 1400
NUTR 50 110 50 110 32 30 60 1,1 0,6 76 120 1300


Cw: Dynamic load  -  Cow: Static load

Technical Characteristics - NUTR track roller

The main characteristic of this series of rollers is the high thickness of the outer ring, which is suitable to bear high specific pressures and the thrusts deriving form the use of these bearings as pressure rollers, cam followers, conveyor belt rollers, bearings for fork lift masts.

Other important features of these bearings are:
  • Outer ring with double border of the rollers obtained entirely and accurately grinded to allow the roller to bear loads with axial components. The ring is usually cambered on the outer part, in order to improve working condition with heavy loads and to prevent the concentration of load onto side bands of the raceway. On request, C.R. can supply rollers with cylindrical outer surface.
  • Inner ring with holes and channels for the inflow of lubricants.
  • Grinded thrust rings, which form a labyrinth protection system, along with steel sealing sheets forced on the outer ring. One of the lateral thrust rings can be a closed thrust ring, to allow the fixing of the rollers at the edge of the shaft.
  • Full-complement of grinded flat head rollers.
  • Tolerance of execution according to normal class, possibility of special execution according to class P5 (DIN 620).