SAE 841 Sintered Bronze ASTM-B438 Round Bars

SAE 841 Sintered Bronze ASTM-B438 Round Bars

DALON self-lubricating SAE 841 Bronze Bushing are manufactured of pressed copper and tin powders by sintered technology and impregnated with lubricating oil and high porosity.
High Performance for sintered bronze air muffler, Sintered Metal Filter, Flanged Sintered Bronze Bushing, We put the product quality and customer's benefits to the first place. Our company adheres to the business philosophy of 'customer-centric, low-price and high-quality as the foundation, and customer satisfaction as the goal', and wins the trust of users with preferential prices. Our company has adhered to the business philosophy of "talent as capital, technology as motivation, and customer needs as our responsibility. We have won widespread recognition and support from all walks of life with our high-quality products and perfect service system. With many years of professional manufacturing experience, we deeply realize that in order to manufacture products that satisfy everyone, we need perfectly combine advanced technology and production processes.


DALON self-lubricating SAE 841 Bronze Bushing are manufactured of pressed copper and tin powders by sintered technology and impregnated with lubricating oil and high porosity.

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 SAE 841 Bronze 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 Bearing Type

Cylinder / Spherical

For Load Direction



SAE841 Bronze

Tolerance Standard

F7 r7 Js13

Lubrication Method

Embedded Lubricated

For Shaft Type


Shaft Mount Type

Slip Fit

Startup friction causes this porous SAE 841 Bronze Bushing to release a thin layer of oil on the bearing’s surface.





Bronze based

SAE841 ASTM B438-70; SintA50

Cu87.5~90.5,Fe1.0max,Sn9.5~10.5; CuSn663

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.


With no moving parts, SAE 841 Bronze Bushings are the simplest type of bearing. Compared to ball and roller bearings, they generally handle higher temperatures and perform better in dirty environments. They are also intended by design to be self-lubricating, maintenance free and low cost.


An extremely wide range of operating loads, speeds and temperatures:

●Dynamic loads from 6 to 75 MPa

●Linear speeds up to 8 m/s

●Operating temperatures from - 180°C to + 300°C

Reduce of design and ownership costs

●Maintenance-free operation

●Lower cost compared to cast metal and machined bearings

●Complex designs and forms possible

●High dimensional accuracy

●Excellent surface finish

●Reduced weight compared to similar non-porous components


●General assembly machinery, industrial vehicles, automation, farm machinery, sewing machines,

●bottling machines, key duplicating machines, electrical switchgears, mobility, toys, etc.

Home appliances:

●Lawnmowers, roller shutters, office swivel chairs, locks, garage doors, awnings, sliding windows,

●hinges, furniture, gardening, etc.


●Cylindrical plain bushings

●Flanged bushings


●Special Design

Custom made to order Sintered bushings, please specify ID and OD and Length. The difference between the ID and OD must be at least 2mm, Length Maximum 75mm

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To be an excellent supplier of SAE 841 Sintered Bronze ASTM-B438 Round Bars is our development goal. We will cherish every opportunity to work with you and hope to create a bright future with you with full enthusiasm and sincere service. Our company's assessment is in-depth, we implement incentive measures, our project team cohesion is strong, team members are full of sense of achievement and role allocation is appropriate. Our firm promises all consumers with the first-class products as well as most satisfying post-sale services.
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