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RSU - Track roller

Grinded thrust rings, which form a labyrinth protection system, along with steel sealing sheets forced on the outer ring. One of 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).

Other important features of these bearings are:

Outer ring with double border of the rollers obtained entirely on the outer ring and accurately grinded in order 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.

Technical Characteristics

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

Cw : Dynamic load

COW : Static load

1. Fey seal ring

2. Support thrust ring

3. Outer ring

4. Cylindrical rollers

5. Inner ring

6. Support thrust ring

7. Fey seal ring

D

mm

120

130

140

150

160

180

200

220

240

260

290

310

340

360

d

mm

55

50

55

60

65

70

80

90

100

110

120

130

140

150

H

mm

43

65

70

75

75

85

90

100

105

115

135

146

162

173

B

mm

40

63

68

73

73

83

88

98

103

113

133

144

160

171

R

mm

10.000

10.000

10.000

10.000

10.000

10.000

10.000

10.000

10.000

10.000

15.000

15.000

15.000

15.000

Cw

KN

128

192

223

255

275

350

410

495

560

670

890

1020

1215

1360

Max speed

RPM min-1

1.000

1.100

850

800

700

600

500

400

340

300

260

240

200

180

r

mm

2

3

3

3

3

3

4

4

4

4

4

5

5

5

Cow

KN

195

250

300

350

370

490

580

720

830

1020

1370

1600

1950

2210

C.R. Rif.

RSU 55-120

RSU 50-130

RSU 55-140

RSU 60-150

RSU 65-160

RSU 70-180

RSU 80-200

RSU 90-220

RSU 100-240

RSU 110-260

RSU 120-290

RSU 130-310

RSU 140-340

RSU 150-360

INA Reference

NNTR50X130X65-2ZL

NNTR55X140X70-2ZL

NNTR60X150X75-2ZL

NNTR65X160X75-2ZL

NNTR70X180X85-ZL

NNTR80X200X90-2ZL

NNTR90X220X100-2ZL

NNTR100X240X105-2ZL

NNTR110X260X115-2ZL

NNTR120X290X135-2ZL

NNTR130X310X146-2ZL

C.R. s.r.l. - 26845 Codogno (LODI) - ITALY - Via S. Pertini, 6/8 (Z.I.) - tel. +39 0377 437021 - fax +39 0377 437107 - p.iva 01183740198 |  info@crsrl.com