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Cylindrical Roller Bearing NU 3036 M

    Payment Type: L/C,T/T
    Incoterm: FOB,CIF,FCA
    Delivery Time: 70 Days

Basic Info

Model No.: NU 3036 M

Additional Info

Packaging: Standard Export Package

Brand: NXZ

Transportation: Ocean,Land,Air

Place of Origin: China

Certificate: ISO9001,ISO140001,TS16949

HS Code: 8482500090

Port: Yinchuan,Tianjin,Shanghai

Product Description

Cylindrical roller bearings

Cylindrical roller bearings are separable, easy to mount and dismount especially more outstanding when they are used on bearings requiring interference fit between inner and outer rings with the shaft and housing. Cylindrical Roller Bearing is contacted with the fair line between the rollers and the raceway, which is of elimination of edge stress. Comparing with the Ball Bearings, with same boundary dimensions, cylindrical roller bearings have larger radial carrying capacity. Comparing with structure, this type of Bearing is more suitable for high speed rotation.

Structures

1. N0000 type cylindrical roller bearings without rib on outer ring and NU0000 type cylindrical roller bearings without rib on inner ring

These type of bearings can carry large radial load, rotate at a high speed, there is no limit to axial displacement on shaft or housing, but cannot withstand axial load.

2. NJ0000 and NF0000 types Cylindrical roller bearings with ribs on both of inner rings and outer rings

NJ0000 and NF0000 types of bearings can allow axial displacement on the shaft or housing and carry little single-direction axial load; NU0000+HJ0000 types and NUP0000 type bearings can allow two-direction displacement within axial clearance range on the shaft and housing and carry little double-direction axial load.

3. RNU0000 Type Cylindrical roller bearings without inner rings.

RNU0000 types of bearing are applicable to the parts with limitation on radial size. The shaft surface can be directly used as raceway surface, the hardness, processing precision and surface roughness should be similar to those of ring raceway.

4.NAL0000 type and NNAL0000 type of long cylindrical roller bearings with double ribs on outer rings are applicable to petroleum machinery.

5.Four-row cylindrical roller bearings FC,FCD and FCDP types are mainly applicable to heavy-duty machines, such as rolling mills. These bearing designations are different from general rule.

Cage material

When the outer diameter is less than (inclusive)400mm, solid brass cage or steel sheet are adopted for Single Row Cylindrical Roller Bearing. When the outer diameter is more than400mm, brass cage and pin-type cage are adopted for Four Row Cylindrical Roller Bearing.

Permissible tilt angle

Generally the cylindrical Roller Bearing shaft is not allowed to be tilted relative to the housing; while for single-row cylindrical roller bearings, when under light load, a relative2`tilt angle is allowed between the inner ring axial line and outer axial line. If the load is larger, the allowable error can be a little more, but should not exceed4`.

Tolerance and clearance

In accordance with requirement, Single row cylindrical roller bearings can be different tolerance classes. The tolerance value can be finding in the section Rolling Bearing Tolerance. For four row cylindrical roller bearings, the tolerance is normally P0, P6 and P5.

The Radial clearance of cylindrical roller bearing is as attached table 1.

Load-carrying capacity

The load-carrying capacity of cylindrical roller bearings with ribs on inner rings and outer rings are related to the magnitude of the radial load and lubrication methods. The maximum allowable axial load is as following:

Oil lubrication

Grease lubrication

Fap<0.4Fr

Fap-(N);Maximum allowable axial load

K-Factors related to bearing size series

2.3 series K=0.2;

22.23 series K=0.16.

C0r-(N);Basic static load rating

ng-Fr>0.1Cr,

(r/min);For the limit rotational speed of a bearing carrying a purely radial load, when Fr>0.1Cr, use the speed reduction factor to compensate the limit rotational speed.

n-(r/min).Actual operating rotation speed

As the axial load given by the above formula and under the following conditions, bearing with tolerance class 0 (except improved and enhanced types) can function normally:

The temperature of oil lubricate is55℃and grease lubricate is40℃, the highest is90℃. (The viscosity of lubricate oil is ν50=30mm2/s, and the dropping point of lubricate grease is170.)

If the axial load is acted internally, the allowable axial load can be doubled; when acted temporally, the allowable load can be increased by 2 times.

Dynamic equivalent radial load

Pr=Fr

For the cylindrical roller bearing with axial load

2.3

To 2 and 3 series

Pr=Fr+0.3Fa (0≤Fa/Fr≤0.12)

Pr=0.94Fr+0.8Fa (0.12≤Fa/Fr≤0.3)

22.23

To 22,23 series

Pr=Fr+0.2Fa (0≤Fa/Fr≤0.18)

Pr=0.94Fr+0.53Fa (0.18≤Fa/Fr≤0.3)

Static equivalent radial load

P0r=Fr

Table 1 Radial clearance of cylindrical roller bearing with cylindrical bore

μm

Nominal bore diameter d

mm

C2 clearance

Standard clearance

C3

clearance

C4

clearance

C5 clearance

Over

To

Min

Max

Min

Max

Over

To

Min

Max

Min

Max

10

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

10

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

0

0

0

5

5

10

10

15

15

15

20

25

35

45

45

55

55

65

100

110

110

25

25

25

30

35

40

45

50

55

60

70

75

90

105

110

125

130

145

190

210

220

20

20

20

25

30

40

40

50

50

60

70

75

90

105

110

125

130

145

190

210

220

45

45

45

50

60

70

75

85

90

105

120

125

145

165

175

195

205

225

280

310

330

35

35

35

45

50

60

65

75

85

100

115

120

140

160

170

190

200

225

280

310

330

60

60

60

70

80

90

100

110

125

145

165

170

195

220

235

260

275

305

370

410

440

50

50

50

60

70

80

90

105

125

145

165

170

195

220

235

260

275

305

370

410

440

75

75

75

85

100

110

125

140

165

190

215

220

250

280

300

330

350

385

460

510

550

-

65

70

80

95

110

130

155

180

200

225

250

275

305

330

370

410

455

510

565

625

-

90

95

105

125

140

165

190

220

245

275

300

330

365

395

440

485

535

600

665

735

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Product Categories : Roller Bearing > Cylindrical Roller Bearing

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  • Cylindrical Roller Bearing NU 3036 M
  • Cylindrical Roller Bearing NU 3036 M
  • Cylindrical Roller Bearing NU 3036 M
  • Cylindrical Roller Bearing NU 3036 M
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