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JDB-2 Bronze Embedded Bush

JDB-2 Bronze Embedded Bush

Application

 


JDB-2 is also one type of JDB series.It is base on bronze CuSn6Zn6Pb3 and evenly embedded with a solid under low load,high temperature and middle speed,e.g.gemel is furnace gate,convery way of the baking furnace,light industry and tooling machine industry etc.

  TECHNICAL DATE-- 1

Max. Load

Static

250N/m

 

Temp

-100~300

 

Dynamic

100N/m

 

max linear velocity

dry friction

0.3m/s

 

 

 

 

 

liquid lubrication

1.0m/s

Max.PV

1.65N/m.m/s

 

Thermal conductivity

60W(mK)1

Coefficientoflinear expansion

19x10-6K-1

 

Friction coefficient

0.03~0.20 

Tensile strength

750N/m

 

Hardness

HB>=210

 

 

 

Elongation

12%

 

Type

JDB-1

JDB-2

JDB-3

JDB-4

JDB-5

Base material

CuZn24Al6

CuSn6Zn6Pb3

CuSn6Zn6Pb3

FC/HT-250

CuCr15

Base Hardness

Hb230
(Hb270)

HB 90

HB 80

HB 210

HB 60

Friction coef(u)

<0.16

<0.15s

<0.14

<0.17

<0.17

Temperature limit

300

350

300

400

350

Dynamic Load Limit

100 N/mm2

60 N/mm2

70 N/mm2

60 N/mm2

250 N/mm2

Load LImit Under 1m/min

25 N/mm2

15 N/mm2

20 N/mm2

15 N/mm2

70 N/mm2

Speed limit

0.40 m/s 5 m/s

2 m/s

2 m/s

0.5 m/s

0.1 m/s

PV Limt

3.8 N/mm2·m/s

0.5 N/mm2·m/s

0.6 N/mm2·m/s

0.8 N/mm2·m/s

2.5 N/mm2·m/s

JDB Wear Performance

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)

CuSn6Zn6Sn3

Oil

0.098

10

0.125

100

0.10

100

JDB-1

dry friction

0.075

100

0.015

100

0.012

100

JDB-2

dry friction

0.025

30

0.065

100

0.025

100

JDB-3

dry friction

0.03

30

0.12

100

0.015

100

JDB-4

dry friction

0.03

10

0.25

20

0.011

100

JDB-5

dry friction

0.022

100

.0.13

100

0.01

100

 

 

Lubricant

Features

Typicalapplication

SL1 Graphite+add

Excellentresistanceagainstchemical attacksandIowfriction.Templimit400

Suiteforgeneralmachinesand underatmosphere

SL4+MOS2

Lowerinfrictionandgoodforwater lubrication,Temp.limit300

Suiteforwater/sealubrication,like ship,hydraulicturbine,gasturbineetc

PTFE+MOS2+CF