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/
Excavator Track Idler Bushing ...
BIMETAL BUSHING WITH COPPER PLATE
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 |
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 |
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 |
Widely used in metallurgical equipment, instrumentation and mining machinery, ship machinery.
Excavator Track Idler Bushing Images |