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DALON BUSHING INTRODUCTION:

DALON self-lubricating Starter 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 Starter 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:

All Starter Bushing are designed to handle radial loads, thrust loads, or a combination of the two. Radial loads are perpendicular to the shaft. Thrust loads are parallel to the shaft. Sleeve bearings handle radial loads. Flange sleeve bearings handle both radial and thrust loads. Thrust bearings handle thrust loads.

Startup friction causes these porous Starter Bushing to release a thin layer of oil on the bearing’s surface.

DALON Starter 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 Starter 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

Standard material specifications include: SAE 841 (CuSn9010), ASTMB 438 Grade 1 Type II,

CuSn 6-6-3, Sint B 50 & Standard impregnating oil conforms to SAE 30 specifications

Sintered Bronze and iron based self-lubricating bushings are made of two different functions:

The metallic alloy structure which supports and transfers the mechanical loads

The oil lubricant or graphite contents which separates two surfaces in relative motion and to reduce friction.

We will continue to maintain our leading position and continue to increase our brand impact by offering a diverse range of Oilless Bimetal Sliding Self Lubricating Bearing Bushing with a high degree of practicality. Over the years, our business has reached stability, health and rapid development with the support and assistance of our customers from all walks of life. From business negotiation to ordering, from raw material purchase to debugging, from product delivery to construction, we provide customers with professional, standardized and humanized services integrating consultation, planning, design, construction and after-sales.

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