Custom Self Lubricating Flange Bushing
Custom Self Lubricating Flange Bushing are manufactured of pressed copper and tin powders by sintered technology and impregnated with lubricating oil and high porosity (20-25% in volume). The oil contained in the porosity provides a constant lubrication between bearing and shaft, the system does not need any additional external lubricant, allows this type of sintered bronze bushing to work under hydrodynamic conditions. which resulting in a very low friction coefficient and maintenance-free for general engineering applications.
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Product Introduction
Custom Self Lubricating Bushing
EXPLORE P/M BUSHING TYPES
CYLINDER BUSHING
SPHERICAL BUSHING
fLANGE BUSHING
CUSTOMIZED DESIGNS
DALON BUSHING INTRODUCTION:
Custom Self Lubricating Flange Bushing are manufactured of pressed copper and tin powders by sinter technology and impregnated with lubricating oil and high porosity (20-25% in volume).
The oil contained in the porosity provides a constant lubrication between bearing and shaft, the system does not need any additional external lubricant, allows this type of Bushing to work under hydrodynamic conditions. which resulting in a very low friction coefficient and maintenance-free for general engineering applications.
|
System of Measurement |
Inch / Metric |
|
Bearing Type |
Plain |
|
Plain Bearing Type |
Sleeve / Flange / Spherical * with Ring |
|
For Load Direction |
Radial |
|
Material |
SAE841 Bronze(CuSn9010) / 663 /A50-B50 |
|
Tolerance Standard |
F7 r7 Js13 |
|
Lubrication Method |
Embedded Lubricated |
|
For Shaft Type |
Round |
|
Shaft Mount Type |
Slip Fit |
LOAD DIRECTION:
Dry lubrication ofCustom Self Lubricating Flange Bushing with solid lubricants under certain circumstances can achieve better friction coefficients than plastic bushings and casting bearings, for instance. Also Bushing with content of graphite could reduce running sounds and good running properties.
An additional lubricant enables the longer service life to be increased.
Bushing have a pore volume of between 15% to 30%, and these pores are used by oil impregnation for the bushing's entire service lifetime.
DALON Bushing PROPERTIES
|
GENERAL |
|
Unit |
Value |
|
Maximum load, p |
Static Dynamic |
N/mm2 N/mm2 |
20 10 |
|
Operating temperature |
Min Max |
°C °C |
-180 +300 |
|
Minimum density |
|
g/cm3 |
6.2 |
|
Minimum apparent porosity |
|
% |
20 |
|
Maximum sliding speed, U |
m/s |
0.1 - 6.0 * |
|
|
Maximum pU factor |
N/mm2 x m/s |
0.1 - 1.8 * |
|
|
Coefficient of friction |
|
0.05 - 0.25 * |
|
|
Surface roughness, Ra |
µm |
≤ 0.3 - ≤ 0.6 |
|
|
Surface hardness |
HB |
> 240 - > 355 |
|
DALON CUSTOM SINTERED BUSHING MATERIAL STRUCTURE
|
MATERIAL CODE |
BASIC METAL |
ALLOY COMPOSITION |
|
Bronze based |
CuSn9010/ SAE841 ASTM B438-70; SintA50/CuSnPb663 |
Cu87.5~90.5,Fe1.0max,Sn9.5~10.5; CuSn663 |
MATERIALS OF BUSHING
SINTERED IRON BASE
• High cost efficiency
• For conventional use
• Radial load up to 4 N/mm2
• Speed up to 2 m/s
SINTERED BRONZE BASE
• Radial load up to 5 N/mm2
• Speed up to 3 m/s
• Good emergency running properties
• Stop & start operation
• Corrosion-resistant
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