HZ-JDB Wear-resistant graphite copper bushing

Model

(Unit)

JOB-1

JOB-2

JOB-3

JOB-4

JOB-5

Material

CuZn25AI6Fe3Mn4

CuSn6Zn6Pb3

SteeI+CuSn6Zn6Pb3

HT250

GCR15

Friction coef

M

<0.16

<0.15

<0.14

<0.18

<0.17

Temp Max.

•C

300

350

300

400

350

Load Max

N/mm2

100

60

70

60

250

Velocity Max.(dry)

m/s

0.4

 2

2

0.5

0.1

Velocity Max.(oil)

m/s

5

10

10

5

3

PV Max.(dry)

N/mm2.m/s

1.8

0.5

0.6

0.8

2.5

PV Max.(oil)

N/mm2.m/s

3.8

3.8

3.8

3.8

3.8

Dilatability

X10-6/C

16 〜20

16 〜18

16 〜20

8〜12

8〜12

Material Hardness

HB/HRC

210〜250HB

80〜120HB

60〜90HB

180〜230HB

HRC55 〜60

Load Applied

62N/mm²

24.5N/mm²

14.7N/mm²

Item

Wear depth

Time

Wear depth

Time

Wear depth

Time

Type

Lubrication

(mm)

(hrs)

(mm)

(hrs)

(mm)

(hrs)

CuSn6Zn6SPb3

oil

0.098

10

0.0125

100

0.10

100

JDB-1

dry

0.075

100

0.015

100

0.012

100

JDB-2

dry

0.025

30

0.065

100

0.025

100

JDB-3

dry

0.03

30

0.12

100

0.015

100

JDB-4

dry

0.03

10

0.25

20

0.011

100

JDB-5

dry

0.022

100

0.013

100

0.01

100

APPLICATION FEATURES

basically general-purpoducts. suitable for various circumstances including high or low temperature, with oil or oilless lubrication. or even in the water. With it's matrix made of high-strength brass. It's hardness doubles that normal bronze bushings and the wear performance improves in large degree, so it is applicable for conticaster, pitching machine. converors of metallurgy industry. It could also be used in plastic injection machines, in the automatic switch of high-tension electricity, in the luffing and supporting parts of construction machines. Hydraulic gate supporter. Pilley, drive wheels of water control project, and dryung tunnel of paper machines. auto die sliding parts for ships unmooning etc.

Products of JDB-2 series are mainly for circumstances with low load and high temperature, for example: gemel of fireplace gate,racewahy of baker machines of light industry. machine tools industry and so on.

The inner side material of products of JDB-3 series is the sane as that of the JDB-2 series. so they could function as well as the that of JDB-2 series. in additional. They have other advantages such as saving material costs, improving compressive strength, and that they could be assembled by welding the bushing surface together with other matrix. They are suitable for parts which need not oil lubrication of construction machines, metallurgy machines and conveying machines.

Products of JDB-4 are typical kind of material-saving product. They could replace JDB-2 products where the mechanical requiements are not so high. They could reduce the cost largely. and meet the demands for application. Such as: mould guide bushing, die carrier of plastic moulding machines and so on.

Products of JDB-5 serise are a kind of fortified products. Due to it's excellent comprehensive capability. It's especially suited in the supporting parts of hoisting machines. for example: support of rooter. support of hoist engine. surpport of crane and so on. But as for their matrix being steel, they are not suitable for circum-astances with water. acid and alkali

d

D

I.D.

F7

O.D.

m6

L -0.30-0.10 

8

10

12

15

16

20

25

30

35

40

50

60

70

80

8

12

8

+0.028

+0.013

12

+0.018

+0.007

081208

081210

081212

081215

10

14

10

14

101408

101410

101412

101415

101420

12

18

12

+0.034

+0.016

18

121810

121812

121815

121816

121820

121825

121830

13

19

13

19

+0.021

+0.008

131910

131915

131916

14

20

14

20

142010

142012

142015

142020

142025

142030

15

21

15

21

152110

152112

152115

152116

152120

152125

152130

16

22

16

22

162210

162212

162212

162216

162220

162225

162230

162235

162240

18

24

18

24

182412

182415

182416

182420

182425

182430

182435

182440

20

28

20

+0.041

+0.020

28

202810

202812

202815

202816

202835

202840

202850

22

32

22

32

+0.025

+0.009

223212

223215

223220

223225

25

33

25

33

253312

253315

253316

253335

253340

30

38

30

38

303812

303815

303820

303825

303830

303835

303840

303850

303860

35

45

35

45

354535

354540

40

50

40

50

405020

405025

405030

405035

405040

405050

405060

405070

405080

45

55

45

55

455530

455535

455540

50

60

50

60

506030

506035

506040

506050

506060

506070

506080

d

D

I.D.

O.D.

F

L₁

15

20

25

30

35

40

50

60

80

100

D

10

+0.040

+0025

14

+0.034 +0.023

22

2

1015

1020

12

18

12

+0.050

+0.032

18

25

3

1215

1220

13

19

13

19

+0.041

+0.028

26

1315

1320

14

20

14

20

27

1415

1420

15

21

15

21

28

1515

1520

1525

1530

16

22

16

22

29

1615

1620

1625

1630

20

30

20

+0.061

+0.040

30

40

5

2020

2025

2030

2035

25

35

25

35

+0.050

+0.034

45

2520

2525

2530

2535

30

40

30

40

 50

3020

3025

3030

3035

3040

3050

35

45

35

+0.075

+0.050

45

60

3525

3530

3535

3540

3550

40

50

40

50

65

4030

4035

4040

4050

45

55

45

55

+0.060 +0.041

70

4530

4535

4540

4550

4560

50

60

50

60

75

5050

5050

5060

55

65

55

+0.090 +0.060

65

80

5540

5550

5560

60

75

60

75

+0.062 +0.041

90

7.5

6040

6050

6060

6080

70

85

70

85

+0.073

+0.051

105

7050

7060

7080

75

90

75

90

110

7550

7560

80

100

80

100

120

10

8060

8080

80100

100

120

100

+0.107

+0.072

120

+0.076 +0.051

150

10060

10080

100100

120

140

120

140

+0.088 +0.063

170

12060

12080

120100