Bearing

View: 730  From: HONG'S BELT  Date: 2013-01-06

Drive / Idler Shaft

HONGSBELT  drive/idler shaft can be constructed by stainless steel, carbon steel and aluminum alloy materials; these three materials are recommended to use mostly.The appearance of shaft is designed in two types which are the square shaft and the round shaft respectively. The shaft length must be manufactured according to the effective width of belt and all related dimension of conveyor structure required.

unit : mm

 Frame

A

B

C

D

E(max.)

F(max.)

G

H

I

K

LR

M

MR

25.4

B+130

 

50

80

25

25

45

2

4.5

7.2

38

29

31.8

B+140

60

80

25

25

45

4.5

7.2

38

29

38.1

B+200

75

125

25

25

65

4.5

8.2

38

45

50.4

B+255

85

170

35

35

106

4.5

8.2

38

45

63.5

B+285

100

185

35

35

125

4.5

8.2

38

45

 70.0

B+310

110

200

45

40

136

5.5

10.2

50.8

45

 80.0

B+355

125

230

45

40

146

5.5

10.2

50.8

--

 90.0

B+400

140

260

45

40

165

5.5

10.2

50.8

--

The design specification above is for reference only.

 

Water Proof Bearing

unit :mm

EASE

Model

Bearing Model

Journal

Journal Sleeve of TEFLON

 TEFLON Bearing

UCF

 UXF

A

B

C

D

E

F

G

H

I

J

K

TEF-1

201

- - 

11.97(12)

12

2.8

5

25

3

18

3

16

25

60

TEF-2

202

- -

14.97(15)

15

2.8

5

25

3

21

3

16

25

60

TEF-3

203

- -

16.97(17)

17

2.8

5

25

3

23

3

16

25

60

TEF-4

204

- -

19.95(20)

20

2.8

5

35

3

26

14.5

35

65

55

TEF-5

205

05

24.95(25)

25

3.8

5

35

3

33

18.5

35

80

70

TEF-6

206

06

29.95(30)

30

3.8

5

35

3

38

16

34

80

70

TEF-7

207

07

34.95(35)

35

3.8

8

35

3

43

18.5

35

90

80

TEF-8

208

08

39.95(40)

40

3.8

8

45

3

48

16

45

90

80

TEF-9

209

09

44.95(45)

45

4.8

8

45

3

55

22.5

45

120

100

The processing tolerance of stainless steel journal and  TEFLON journal is ± 0.05 mm.
The processing tolerance of TEFLON bearing is ± 0.1 mm.
The water proof bearing should be applied within the average loading of 45 Kg / m2 and the speed of conveyor belt has to lower than18M per/minute in the safety range.
For the examples of real application, please refer to Examples in top menu.

 

Auxiliary Bearing

When the length of drive/idler shaft journal is over 950mm or in heavy loading operation , the drive/idler shaft will be deformed by the huge tension. The allowable maximum deformation ratio is 2.5mm for drive shaft, and 5.5mm for idler shaft. For increasing the shaft length and decreasing the torque waste, it is necessary to install auxiliary bearings between the shafts on both sides to support the center position of drive/idler shaft. It will avoid the deformation and deflection of drive/idler shaft.

If it is necessary to adopt the intermediate auxiliary bearing or not, please refer to Deflection Table in left menu.

Notes for Intermediate Auxiliary Bearing  Installation


For intermediate auxiliary bearings installation, the auxiliary bearing must be joined on the frame of conveyor side by welding, or fixed by built-in screws. The integral conveyor structure should be manufactured with the precise plan and sophisticated construction. Please pay attention to the diameter of drive sprocket and make sure if it is able to contain the installation of intermediate auxiliary bearing. Please refer to Split Bearing Dimension Comparison Table below.

The intermediate auxiliary bearings always adopt the split bearings. It is easy to install, maintain, and endure heavy loading. The joint of split bearing should be perpendicular to the transporting direction of belt, in order to increase the tensile strength of the drive or idler shaft. While adopting the intermediate auxiliary bearing, please choose the products which are able to endure the bidirectional loading for radial and axial.

The conventional ball bearing is also available to use the round bore adapter as a supporting device to instead of the intermediate auxiliary bearing. For the processing dimension of round bore adapter, please refer to Split Bearing Dimension Table below.

Split Bearing Dimension Table


Unit : mm

d1

d a b c g h l w M S

35

80

205

60

25

33

60

85

110

170

M 12

40

85

205

60

25

31

60

85

112

170

M 12

45

90

205

60

25

33

60

90

115

170

M 12

50

100

205

70

28

33

70

95

130

210

M 16

 

Simple Auxiliary Bearing

When conveyor belt is driven by the sprocket with smaller diameter or operated in humid and low temperature environment, we recommend you to adopt another type of the simple auxiliary bearing to substitute for the split bearing.

Examples


unit : mm

A

B

C

D1

55

70

100

35

60

85

110

40

75

100

120

45

       

 

Bracket Auxiliary

The bracket auxiliary bearing is designed for heavy loading, intermittent operation, the environment with temperature difference more than 40°C, and the drive/idler shaft that must install the auxiliary bearing.

Example of Bracket Auxiliary Bearing Construction


The illustration is shown above provides the example of 38mm only. You can refer to the dimensions above to fabricate these accessories yourself. For other dimensions, please contact with HONGSBELT technical department and the local agencies for further information. We are willing to give service to you.

 

Shaft Deflection Table

Material

Shaft

Aided Bearing

The Length of The Shaft ( mm )

500

750

1000

1250

1500

1750

2000

2250

2500

2750

3000

3250

3500

3750

4000

 

     

D

N

2800

900

650

375

300

150

95

65

45

35

--

--

--

--

--

Y

--

--

3750

1750

1000

750

400

275

200

150

100

75

65

60

50

I

N

--

2800

1500

750

475

300

180

120

80

60

45

40

--

--

--

Y

--

--

--

4000

2250

1750

1000

750

450

350

250

175

150

130

110

 

D

N

--

--

1750

1000

750

450

300

200

140

90

60

50

45

40

30

Y

--

--

--

4500

3500

2250

1750

750

500

350

250

180

150

100

90

I

N

--

--

4500

2500

1500

820

500

350

225

165

135

100

75

--

--

Y

--

--

--

--

--

4500

3000

1900

1200

750

450

400

300

265

250

 

 

D

N

1750

750

350

150

80

45

35

25

15

10

--

--

--

--

--

Y

--

3000

1750

750

450

250

160

110

70

50

--

--

--

--

--

I

N

--

2500

1000

500

250

100

50

30

25

20

--

--

--

--

--

Y

--

--

4000

2000

900

750

450

300

190

100

80

60

--

--

--

 

D

N

--

--

--

4500

1750

125

750

450

350

225

200

150

100

75

--

Y

--

--

--

--

--

5000

3500

2250

1850

1000

750

500

450

400

350

I

N

--

--

3500

2500

1500

850

500

350

225

200

100

90

75

--

--

Y

--

--

--

--

--

4500

3000

2000

1000

750

500

400

350

300

250

 

   

D

N

2940

950

690

395

315

160

100

70

50

40

30

--

--

--

--

Y

--

--

4000

1840

1150

790

420

290

50

160

105

80

70

65

55

I

N

--

2940

1575

790

500

315

190

130

210

65

50

45

--

--

--

Y

--

--

--

4200

2370

1840

1050

790

85

365

255

190

160

140

120

 

D

N

--

--

1850

1150

790

475

315

210

475

95

65

55

50

45

35

Y

--

--

--

4750

3675

2365

1840

790

150

370

260

185

160

120

100

I

N

--

--

4750

2650

1580

865

525

370

530

175

140

110

80

--

--

Y

--

--

--

--

--

4730

3150

1995

240

790

470

420

350

300

270

   

D

N

1850

790

370

160

84

50

40

50

15

10

--

--

--

--

--

Y

--

3150

185

790

475

260

170

120

75

50

--

--

--

--

--

I

N

--

2625

1050

120

260

105

55

30

25

20

--

--

--

--

--

Y

--

--

4200

2100

950

790

480

320

200

105

85

65

--

--

--

 

D

N

--

--

--

4725

1850

1300

790

480

370

250

210

175

105

90

---

Y

--

--

--

--

--

5250

3700

2400

2000

1050

790

525

475

425

375

I

N

--

--

3675

2650

1580

900

550

370

250

210

105

105

90

--

--

Y

--

--

--

--

--

4800

3150

2100

1050

790

525

420

375

315

265

D = Drive, I = Idle, N = Not, Y = Yes 

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