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JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
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Excavator Track Idler Bushing

JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD

Excavator Track Idler Bushing

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Brand Name : VIIPLUS

Model Number : Track idler Bushing

Certification : ISO 9001

Place of Origin : made in china

MOQ : negotiable

Price : Negotiable

Payment Terms : T/T

Supply Ability : 1000000 Piece/Pieces One week

Delivery Time : 7-25 work days

Packaging Details : EXPORT CARTON WOOD PALLET WOODEN CASE

Track idler Bushing : Sleeve Bushing

Size : Metric size, Or Customize Size

Service : OEM Customized Services

Application : Machinery excavator

Bush types : Sleeve bushing

Material : Bimetal

Bearing Bushing Factory Price : tiffany@viiplus.com

Self-lubricating Bearing Bushing Manufacturer : https://www.viiplus.com/

High Light : PTFE Coated Self Lubricating Plain Bearing, Teflon Self Lubricating Plain Bearing, Steel Backed Self Lubricating Plain Bearing

characteristic : Втулки скольжения (биметаллические подшипники скольжения)

Dry slide bearing : Self Lubricating Plain Bearing Work in High Temp & Submerged Applications Where Grease, Oil & Plastics Fail. Reduced costs & downtime. Non-galling. Increased reliability. Run dry & keeps running.

Bush Bearings Manufacturers Suppliers Exporters : plain bearings. Long, maintenance-free service, manufactures bushings in various designs and from different materials. tiffany@viiplus.com, Bushings - Configure and purchase - https://www.viiplus.com/

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Track idler Bushing, Bushing Supplier ...

Excavator Track Idler Bushing ...

HYDRAULIC EXCAVATOR BUSHINGS

BIMETAL BUSHING WITH COPPER PLATE

China Track Roller Bushing, Track Pin Bushing, Bulldozer & Excavator Sleeve Bushings Parts, Find details about China Self-lubricating Bearings ...

720 is a bimetal bearing with steel back and sintered CuPb24Sn4 as lining. This type has fairly good performance in anti-fatigue and heavy load capacity. It is suitable for middle-speed and middle load. When the soft alloy is plated on the bushing surface and with oil lubrication, it can be applied in the high-speed internal combustion engine and connect-rod.

Lead bronze alloy CuPb24Sn4 Temperature Max 170℃
Load capacity 38N/mm² Harderness alloy HB45~70

Excavator Track Idler Bushing

CuPb24Sn4 bimetallic bearing bushes

Structure

  • Steel Backing and Bronze Alloy Overlay


Composition

  • Steel + CuPb24Sn4 bronze alloy

Bimetal Bearing 720 Technical Data

Max. sliding speed V(m/s) 2.5 m/s
Max. PV factor (N/mm2.m/s) 2.8 N/mm2.m/s
Operating Temperature Max. Greased 150°C
Max. Oil lubricated 250°C
Coefficient of friction Greased 0.05~0.12μ
Oiled 0.04~0.12μ
Surface roughness (Ra) ≤0.8 µm
Alloy Layer Hardness (HB) 45-70
Coeff. Of linear expansion

18x10-6/K

Bimetal Bearing Characteristics

  • Particularly suitable for high specific loads with oscillating movement and low frequency.
  • Applicable in difficult operating conditions
  • High load capacity, very good resistance to fatigue at high temperatures.

Typical Application

CuPb24Sn4 bimetallic gearbox bushes 720 is widely used in High speed, heavy load engine main shaft and transmission gearbox etc.

The designing of oil indentations

In order to fully lubricate the bush when in the performance, the indentations with size as follow are recommended. They should be manufactured according to the standard below if without special requirements.
Bush O.D More than to 14~22 22~44 40~50 50~100 100~180
Lubricating hole 3 3 3 6 7
The lubricating hole should be away from butt joint and loading area and designed to be easy-oil-feding as well.

Normal thickness of the JF bimetal and their tolerances

Tolerance Thickness 1 1.5 2 2.5 3 3.5 4 5
Thickness of steel
backing
0.6 1 1.4 1.9 2.3 2.8 3.2 4
Thickness of bronze
leyer
0.4 0.5 0.6 0.6 0.7 0.7 0.8 1.0
Manufactuable wall
thickness
1+0.25
+0.15
1.5+0.25
+0.15
2+0.25
+0.15
2.5+0.25
+0.15
3+0.25
+0.15
3.5+0.25
+0.15
4+0.25
+0.15
4+0.25
+0.15
Manufactued wall
thickness
1-0.025 1.5-0.03 2-0.035 2.5-0.04 3-0.045 3.5-0.05 4-0.055 4-0.06

JF Bimetel Bushing chemical composition

Tolerance Thickness JF-800 JF-720 JF-700 JF-20
Cu Remainder Remainder Remainder 0.7~1.3
Pb 9.0~11.0 21.0~27.0 26.0~33.0 -
Sn 9.0~11.0 3.0~4.5 0.5 17.5~22.5
Zn 0.5 0.5 0.5 -
P 0.1 0.1 0.1
Fe 0.7 0.7 0.7 0.7
Ni 0.5 0.5 0.5 0.1
Sb 0.2 0.2 0.2 -
Ai - - - Remainder
Si - - - 0.7
Mn - - - 0.7
Ti - - - 0.2
Other 0.5 0.5 0.5 0.5

JF Bimetel Bushing Physical properties

Physical properties JF-800 JF-720 JF-700 JF-20
Max. static load pressure
N/mm2
150 130 120 100
Tensile strength
N/mm2
150 150 200 200
Max. speed(oil) m/s 5 10 15 25
Friction coef(Oill) 0.06~0.14 0.06~0.16 0.08~0.16 0.08~0.17
PV limit
N/mm2 m/s
Grease 2.8 2.8 2.5 -
Oil 10 10 8 6
“Sapphire Fatigue Calss Mpa 125 115 105

85

Application

Widely used in metallurgical equipment, instrumentation and mining machinery, ship machinery.

Excavator Track Idler Bushing

47*40*30
54*47*35
57*50*35
67*60*35
72*65*40
110*102*100
125*115*78
135*125*83
110*100*90
110*102*100


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