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Bronze-Based Heavy-Duty Bushings

Categories Metal Plain Bearing
Brand Name: Joyreap
Model Number: ZR-011
Certification: ISO,IATF16949
Place of Origin: China
MOQ: 100
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 5,000,000PCS/Month
Delivery Time: 30 days
Packaging Details: Cartons+Wooden Pallets
Application: Steel industry equipment, High-temperature furnaces, Heavy machinery
Material: Bronze back+Bronze powder+PTFE
Lubrication: Self-lubricating
Alternative Name: DU BUSH, SF-1 Bush
Origin: zhejiang, china
Type: Sleeve, Flange, Thrust Washer, Wear Plate, Special-Shaped Bushing
PTFE Color: Red, Black, Yellow, Blue
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Bronze-Based Heavy-Duty Bushings

Bronze-Based Heavy-Duty Bushings



This bronze-based bearing uses tin bronze as the substrate, with sintered spherical bronze powder in the intermediate layer, and a surface rolled with PTFE and high-temperature resistant filler materials. It possesses a high safety factor and is particularly suitable for applications that require continuous operation without shutdown for repair, as well as high-temperature environments where oil lubrication cannot be applied. PTFE design is suitable for completely dry friction conditions. Multiple material varieties have been developed based on lubrication conditions, friction coefficient, and durability requirements. PTFE-metal composite materials provide optimal performance under the broadest range of load, speed, and temperature conditions, whether externally lubricated or unlubricated.


Material Structure




1.PTFE with cooper 0.01~0.03mm
2.Porous bronze 0.2~0.35mm
3.Steel backing 0.7~2.3mm
4.Tin-plating
or copper plating0.002mm.


Characteristics



1,Exceptional thermal conductivity dissipates operational heat
2,Superior load capacity for heavy-duty applications
3,Excellent performance in high-temperature environments


Availability



  • Standard cylindrical bushing
  • Special designs are produced at short notice
  • Lead free type is also available
  • PTFE outside and PTFE inside are available

Application



Pump Truck, Construction machinery


Technical Data



Specific load capacity (static)≤ 250 [ N/mm ]
Specific load capacity (dynamic)≤ 140 N/mm at low speeds
Friction value0.04 to 0.2
Temperature-200 to +280 [ °C ]
Max. sliding speed12.5m/s
Max. Pv (dry)3.6N/mm2.m/s
Max. Pv (lubrication)50N/mm2.m/s

Tolerance Details



  • Housing Ø: H7

  • Bushing inner-Ø after mounting: H9

  • Shaft tolerance: f7 to h8


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