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JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD
We Manufacture • Stock • Machining Stronger. By Self-lubricating Bearing & Bronze Gleitlager Design Plain bearing technology in precision with many years experience as a family business. www.viiplus
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Flange Graphite Impregnated Brass Bearings

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Flange Graphite Impregnated Brass Bearings

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Brand Name : VIIPUS

Model Number : Graphite

Certification : DIN 1850/ISO 4379, UNITED STATES UNS STANDARD,C86300

Place of Origin : china

MOQ : NEGOTIABLE

Price : Price Graphite Bushing Parts, (SAE 660) Leaded Tin Bronze Bearings,863 (SAE 430B) 862 (SAE 430A)Manganese Bronze

Payment Terms : TT IN ADVANCE

Supply Ability : Bronze Bushings Online • Sliding Bearings Manufacturers • Self-lubricating Bushing Suppliers

Delivery Time : FAST DELIVERY

Packaging Details : BUSHING EXPORT CARTONS,WOODEN CASE, SPECIFY REQUIREMENTS

Material : Brass CuZn25Al5Mn3Fe3

Feature : Customized

Lubrication : self-lubricating

Application : Suite for general machines and under atmosphere,Ship,hydraulic turbine,gas turbine etc

Type : Non-standard Cylindrical Bearing

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Flange Graphite Impregnated Brass Bearings


China flange Graphite Impregnated Brass Bearings , ISO9001:2015, Similar To DEVA Metal.Self-Lubricating Composite Sliding Material, Factory Price, Contact Us! View Product.Read News.Highlights: Professional Graphite Impregnated Brass Bearings supplier.

Graphite impregnated bronze slide plate is a self-lubricating bearing plate made up of a high quality bronze with graphite filled grooves.

The bronze plate acts as the bearing surface, withstanding heavy loads, while the graphite inserts provide a solid, oil-free lubricant. The formation of lubricant forms a film of graphite between the bearing and mating surface which results in low co-efficient of friction upon the start of relative motion.

Large Inventory of Bronze Bushings, Bronze Bearing and Self-lubricating Wear Plates. Gleitlager. Bushing Sleeve bearing. Bushes Catalogs and Brochures Available.

bushing catalog.pdf

Self-Lubricating Bearing Bronze Graphite Bushing Injection Molding Machine Special Bearing Bush

Graphite


Graphite plugs provide self-lubrication. Graphite has some unusual properties that make it an excellent lubricant. Chemically, it is one of three common allotropic forms of carbon (amorphous carbon and diamond being the other two). In contrast to diamond, which has a very dense and strong three-dimensional crystal structure, graphite has a two-dimensional crystal structure - strong in two dimensions but weak in the third. Its atoms are arranged in parallel sheets that are easily sheared off, giving graphite its characteristic slippery feeling. For example, if you were to rub a pencil lead between your fingertips, it would feel oily. That feeling is the sliding and peeling off of crystal sheets.
In the self-lubrication process, it is precisely these sheared off crystal sheets that provide the lubrication, somewhat like a piece of tissue paper between two pieces of glass. Initially there is no lubrication but as the two mating surfaces (e.g., bushing and shaft) move in relation to each other, a minute amount of graphite becomes distributed over the wear surface and acts as a solid lubricant. It will stay there a long time due to graphite’s superior stability. Although graphite sublimes at 10,000 F in a reducing atmosphere, it will oxidize in air at about 500 F, so it is important to maintain temperatures well below this threshold. In addition, graphite has a near-zero coefficient of thermal expansion. When a graphite plug is embedded into a metal part, the metal will expand but the graphite plug won't. The plug loosens, which restricts the temperature range to about 200 F if the plugs have any open surfaces (i.e., not constrained by a mating part).

Why choose Flange Graphite Impregnated Brass Bearings ?

Insensitive to dirty environment
Resistant to shock loads and vibrations at slow speeds
Enable operation with a poor shaft surface finish
Good resistance to corrosive conditions



flange Graphite Impregnated Brass Bearings

Recommended Mating Shaft
 d8: General Use (High-Load)
 e7: General Use (Light Load)
 f8: High Precision Use
 g6: High Precision Use (Intermittent Operation)
・Materials
[ M ] Material: High Tensile Brass Alloy
Solid Lubricant Embedded

Typical applications include, but are by no means limited to:

Kilns
Dryers
Injection moulding machines
Dust collectors
Louvres
Hot conveyors

StructureCuZn25Al6Mn4 Bronze with solid graphite lubricant inserts
(alternative specifications are available on request)
PV (N/mm² x m/s)3.3 max
Static load (N/mm²)100 max
Sliding speed (m/s)0.3 max
Operating temperature (°C)Up to 300
(alternative specs up to 400)
Coefficient of thermal expansion19 x 10-5/°C
Coefficient of friction0.16
Hardness (HB)210 min
Tensile strength (N/mm²)750 min
Elongation (%)12 min
Density (g/cm³)8

Specifications


Part NumberLDh7DaL1HTtd1d2P.C.D.FAAccessories: Hex Socket
Low Head Cap Screw
TypedF7
Pilot Flanged Graphite Impregnated Brass Bearings
8+0.028
+0.013
2025120
- 0.018
11.552742.23.5619-19M3-10x2
10+0.028
+0.013
2530140
- 0.018
13.562942.23.5621-21M3-10x2
12+0.034
+0.016
2530180
- 0.018
17.5636534.57.526-26M4-12x2
13+0.034
+0.016
253035190
- 0.021
18.5637534.57.527-27M4-12x2
16+0.034
+0.016
25303540220
- 0.021
21.5640534.57.5301824M4-12x4
20+0.041
+0.020
30354050280
- 0.021
27.584963.75.59382231M5-16x4
25+0.041
+0.020
3035405060330
- 0.025
32.585463.75.59432535M5-16x4
30+0.041
+0.020
3540506070380
- 0.025
37.5106384.26.611503040M6-20x4




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