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JDB-5 Material-Based Bush

JDB-5 Material-Based Bush

Application：

JDB-5（GCr15）JDB-5 is reinforced product of JDB series.It is based steel GCR15 adn embedded with solid lubricant.it is of high compress strength and particularly suitable ofr supporting position in hoisting machines,e.g.The support or stand of windlass and of crane.But it should not be appliedin water or in acid/alkali circumstance. Can be used under low,middle and high load
Most suitable for the supporting position of hoisting machine, e.g. bulldozer supporter, hoister supporter, reeling machine supporter 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(m﹡K)﹣1
Coefficientoflinear expansion		19x10-6K-1		Thermal conductivity		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/mm^2	60 N/mm^2	70 N/mm^2	60 N/mm^2	250 N/mm^2
Load LImit Under 1m/min	25 N/mm^2	15 N/mm^2	20 N/mm^2	15 N/mm^2	70 N/mm^2
Speed limit	干 0.40 m/s 油 5 m/s	2 m/s	2 m/s	0.5 m/s	0.1 m/s
PV Limt	3.8 N/mm^2·m/s	0.5 N/mm^2·m/s	0.6 N/mm^2·m/s	0.8 N/mm^2·m/s	2.5 N/mm^2·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

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