sint a50 b50 sintered bronze oil impregnate bushing

FOB Reference Price:Get Latest Price
US $0.03-20 / Piece | 500 Piece/Pieces or Equal 20kgs (Min. Order)
Supply Ability:
2000000 Piece/Pieces per Month or Equal to 80ton/Month
any China port by sea or air
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Production Supplier::
Production Feature::
Sintered bronze bushing
Quality Management Certificate::
ISO 9001:2000
Quality Standards::
Material Composition::
CuSn6Zn6Pb3, Cu90Sn10, sint a50, sint b50 ,bronze bushing
Oil Impregnated Rate::
15% - 25%
Gravity & Density::
Graphite Content Rate::
1% - 3% Max
Hardness HB-bronze::
30-70 Bronze
Hardness HB-iron::
35-145 Iron
Packaging & Delivery
Packaging Details
Products sint a50 b50 sintered bronze oil impregnate bushing packed by plastic bag, each bag contain 500pcs or 5kg Max, packed Cartons max 20kgs each. Delivered by Wooden package or Iron cage / Pallet as requested, Standard Size 800x800x1200; Max G.W. 800kgs
Delivery Time
Shipped in 30 days after confirmation
Product Description

Sintered Powder Metallurgy Bushing with Oil impregnated

DALON sint a50 b50 sintered bronze oil impregnate bushing is a metallic component with high porosity (20-25% in volume), impregnated in a lubricant oil. The oil contained in the porosity provides a constant lubrication between bearing and shaft, so the system does not need any additional external lubricant. Self-lubrication allows this type of sliding bearing to work under hydrodynamic conditions, resulting in a very low friction coefficient.

Chemical Composition:
CuSn6Zn6Pb3, Cu90Sn10,CuSn6Zn6Pb0,SAE841,Fe,Cu-Fe
Material Bronze Base:
ASTM B438-70 GR1 SintA50

Material Iron Base:
SAE863 Type3
SATM B439-70 GR4
Working Temperature:
 -100ºC ~ +200ºC
Density & Gravity: 
Oil Impregnation Rate:
18% - 23%
Graphite content Rate: 
1% - 3%Max
12 Months
Hardness HB (PM Bronze):
Hardness HB( PM IRON):
up to 10 MPa
Working Speeds:
2.5 m/s
Maximum PV Value:
2.45 N/mm2•m/s
Tolerance Range:
DIN1494 ; IT5
Maximum load Capacity:
150 N/mm2
Basic Shape:
Cyclinder ; Flange ;Spherecial (with Ring)


DALON Self-lubricating sintered bearings have some advantages compared to other types of dry sliding bearings:

– Reliability. The constant oil presence eliminates the risk of seizure, and allows the bearing to work during thousands of hours without wear.
– Economy. Maintenance-free, no need for lubricants.
– Performance. Able to work under loads of up to 10 MPa, and speeds up to 2.5 m/s. The maximum working PV is is the range of 2.45 N/mm2•m/s, but can be surpassed in special cases. The dimensional precision is very high (up to IT 5 in diameter), and produces extremely low noise.

The main applications for DALON self-lubricating sintered bearings are:
1. Automotive electrical or mechanical equipment, such as:
– Starters.
– Active driving elements: Brakes, steering, transmission, shock absorbers, …
– Cooling: Radiator, fans, cooling systems, ….
– EGR systems.
– Fuel pumps.
– Comfort and Security: Wipers, window regulation, mirrors, seats, sunroofs, …
2. Universal or customized electric motors and gearboxes of medium-low power.
3. Linear and rotary actuators, pneumatic, hydraulic and electromagnetic.
4. Household appliances: Washing machines, fans, extractor fans, shaving machines, depilators, juicers, rostisserie, air conditioning, handtools, coffee machines, wishking machines, vacuum cleaners, lawnmowers, boilers, etc.
5. Home appliances: Locks, garage doors, awnings, roller shutters, sliding windows, office swivel chairs, trolley rolling wheels, hinges, furnitures, gardening, etc.
6. Industrial: Bottling machinery, carpenter machinery, assembly machinery in general, automation, key duplicating machines, sewing machines, industrial vehicles, electrical switchgears, mobility, medical, catering, farm machinery, toys, etc.

The manufacturing process of sintered components is certified as ecological, because the material waste is very low, the product is recyclable, and the energy efficiency is good because the material is not molten.

Detailed Images

Drawing of Sintered Bronze Bushing

Packing & Delivery
Manufacture Process


Sinter powders can be of pure metal (iron, copper), or alloyed powders (bronze, steel, etc.)mixed with different alloying elements, depending on the composition of the final material (such as graphite, nickel, copper,…), with an organic solid lubricant.


The powder mixture is compacted inside the tooling, which has the negative shape of the final part. The tool is an element of a very high precision, and high durability. The powder is filled into the tool cavity of a mixer by gravity, and  pressure within 200 to 1500 MPa is applied onto it depending on the final density to be achieved.


Sintering  in continuous furnaces, under controlled speed and at an atmosphere with controlled chemical composition by temperatures between 750 and 1300°C depending on the material 

The result of these basic operation is a metallic part with a certain micro-porosity, high dimensional precision, and perfectly functional.

Our Company
Other Products


DALON Sintered Filters and porous metallic components are sintered metallic parts with high porosity, between 35 and 80% in volume, typically made of Bronze 89/11 or Stainless Steel 316L. >> please click photo link above for more details.


Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery or against copy of shipping B/L. For long term business relations, we have more advantage terms for payment.

Q3. What is your terms of delivery?

Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.

Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q5-1: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Our Order & Service

1. OEM Manufacturing welcome: Product, Package...
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. after sending, we will track the products for you once every two days, until you get the products. When you got the
goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer
the solve way for you.
We always focus on quality as you are .....

Top Choice of Industrual solution......
Tel:+86-571-88836312 (8lines) ; +86-571-88365029 ; Fax: +86-571-88396427