• JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
    David from Canada
    Our company import the bronze gleitlager from viiplus china,viiplus professional team makes sure customs clearance is always smooth. They provide an accurate bronze bushing classification, handle all the paperwork,We have received the self-lubricating bronze bushings. They look well done and the high quality.
  • JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
    Valerie from California
    We import the bronze gleitlager from China to under the incoterm FOB shanghai, sometimes by Air. viiplus is a very good bronze gleitlager supplier, they are very professional and patient, after we inform the new order, they will manufacturer bronze gleitlager in time and give us the schedule , and then we just need to receive the bronze parts
  • Daisy From Germany
    The best surface finishes for Sleeve Bearing, tighter concentricity, and bronze bushings material uniformity. The good supplier of standard inch and metric sleeve bearings and bushings from china.
Contact Person : Tiffany
Phone Number : +86 18258386757
WhatsApp : +8618258386757

Excavator Track Idler Bushing

Place of Origin made in china
Brand Name VIIPLUS
Certification ISO 9001
Model Number Track idler Bushing
Minimum Order Quantity negotiable
Price Negotiable
Packaging Details EXPORT CARTON WOOD PALLET WOODEN CASE
Delivery Time 7-25 work days
Payment Terms T/T
Supply Ability 1000000 Piece/Pieces One week
Product Details
Track Idler Bushing Sleeve Bushing Size Metric Size, Or Customize Size
Service OEM Customized Services Application Machinery Excavator
Bush Types Sleeve Bushing Material Bimetal
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Excavator Idler Bushing

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Bimetal Idler Bushing

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Product Description

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

 

BIMETAL BUSHINGS EXCAVATOR BUSHINGS

 

 

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.

 

bronze bushing application excavator

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