Gun Metal Bushes is a high-grade copper, tin and zinc alloy plain bearing that is precision engineered. It is made to minimise friction, wear and vibration between rotating or sliding parts of mechanical assemblies. Due to their great carrying capacity and resistance to corrosion, particularly in wet and malty climates, gunmetal bushes are very reliable since they are used in continuous and heavy-duty operations. These bushes have smooth running, high machinability, and dimensional stability, which guarantee a high precision of fit and long life.
Gun Metal Bushes are commonly utilised in car parts, pumps and valves, compressors, marine and construction machinery and in general industrial use. They serve as a wear-sacrificing surface which shields shafts and housings, as well as reducing the maintenance needs. Gun metal bushes are available in plain, flanged and customised designs and offer a cost-effective and long-lasting solution to an application that needs strength, reliability and consistent operation across the harsh operating conditions.
We, Gunmetal Bushes Manufacturers in India, Ganga R Ispat Metals, are known to provide industries that are of high load, constant rotation and high service conditions. Our Bushes that are made out of Gunmetal are a carefully controlled alloy formulation, centrifugal cast, precision machined and finished to guarantee uniform structure and consistent mechanical behaviour. Each production lot is taken through chemical composition tests, hardness tests, dimensional test and surface quality tests in our in-house quality control. Our Gunmetal Bushes find wide applications in pumps, valves, marine equipment, power plants, and heavy equipment and systems used in industrial transmission, where wear resistance and reliability are crucial.
Gunmetal Bushes in India are used in the application that need a high load-bearing capacity, corrosion resistance, and a constant friction property. Our product line comprises plain bushes, flanged bushes, sleeve bushes and application-specific bush designs that have been produced to fit operating requirements. Refined microstructure and controlled alloy balance provide our Gunmetal Bushes with constant performance on press fitting and long rotating service. Industries simply cannot do without our bushes, in which premature wear or a diminished stability of forms of dimension may cause discomfort.
Process-based Gunmetal Bush Suppliers in India with Operational Reliability. As the Suppliers of Gunmetal Bushes in India, we are concentrated on the regular availability, checked specifications and delivery schedule according to the maintenance and production needs. The bushes are internally and externally diameter calibrated, checked on their hardness and surface finish, and dispatched. This is with our controlled manufacturing methodology that guarantees repeatable tolerances, wear behaviour and predictable service life between batches.
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Material Category |
Bush Type |
Process Control Method |
Typical Application |
|
Gunmetal alloys |
Plain bushes |
Centrifugal casting and machining. |
Shafts and rotary assemblies. |
|
Gunmetal alloys |
Flanged bushes |
Dimensional stabilisation |
Pumps and valves |
|
Gunmetal alloys |
Sleeve bushes |
Finishing and boring Precision. |
Power transmission systems |
|
Gunmetal alloys |
Custom bushes |
Drawing-based execution |
OEM and heavy equipment |
Dealers in India are supporting industry-backed dealers in Gunmetal bushes. Our Gunmetal Bushes Dealers in India are also used to offer technical advice and good access to properly specified bush parts. Dealers keep regional stock organise timely deliveries, and maintain maintenance teams, OEMs, and industrial units with reliable supply options.
This centralised system of dealers enhances continuity of supply and long-term customer loyalty.
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Standard Framework |
Evaluation Area |
Manufacturing Alignment |
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IS Standards |
Mechanical and chemical parameters. |
Production was in line with the customer-defined IS norms. |
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ASTM Standards |
Dimensional performance and wear. |
Manufacturing capacity according to ASTM standards. |
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Customer Drawings |
Fitment error and toleration. |
Implementation based on accepted drawings. |
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Export Compliance |
Tracking and record keeping. |
Inspection-supported reporting |
Being the famous brand Ganga R Ispat Metals, Gunmetal Bush Exporters in India, Ganga R Ispat Metals is an engineered supplier of bush parts to the international markets under rigid scrutiny and documentation policies. International engineering and marine standards of export consignments are met using verified test certificates, secured packaging and complete traceability. Overseas customers choose our Gunmetal Bushes because they have to be used in an application that requires durability, stability of the load, and stable behaviour to wear out.
In case you are in need of high load-bearing, trusted wear resistance and dimensional regulation, Ganga R Ispat Metals is the team that can help you. We are Engineered Gunmetal Bush Solutions in the form of a Disciplined Process Control, Technical validation, and Reliable supply Planning as Gunmetal Bushes Manufacturers, Suppliers, Dealers, and Exporters. Please call us and talk about specifications, custom-designed bush, and performance-based Gunmetal bushes to use in the industry.
| Grade / Designation | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| G1 / Grade I | 320 – 360 | 180 – 220 | 25 – 35 | 90 – 100 |
| G2 / Grade II | 300 – 340 | 160 – 200 | 20 – 30 | 85 – 95 |
| G3 / Grade III | 280 – 320 | 150 – 190 | 15 – 25 | 80 – 90 |
| LG1 | 250 – 290 | 140 – 180 | 10 – 20 | 75 – 85 |
| LG2 | 240 – 280 | 130 – 170 | 8 – 18 | 70 – 80 |
| LG3 | 220 – 260 | 120 – 160 | 5 – 15 | 65 – 75 |
| LTB-1 | 300 – 340 | 160 – 200 | 20 – 30 | 85 – 95 |
| LTB-2 | 250 – 290 | 140 – 180 | 10 – 20 | 75 – 85 |
| Grade / Designation | Thermal Conductivity (W/m·K) | Specific Heat (J/kg·K) | Thermal Expansion (×10⁻⁶ /°C) | Melting Range (°C) |
|---|---|---|---|---|
| G1 / Grade I | 50 – 55 | 380 – 390 | 17 – 19 | 900 – 1020 |
| G2 / Grade II | 48 – 52 | 375 – 385 | 17 – 19 | 880 – 1000 |
| G3 / Grade III | 45 – 50 | 370 – 380 | 18 – 20 | 870 – 980 |
| LG1 | 42 – 47 | 365 – 375 | 18 – 20 | 850 – 950 |
| LG2 | 40 – 45 | 360 – 370 | 19 – 21 | 840 – 940 |
| LG3 | 38 – 43 | 355 – 365 | 19 – 21 | 830 – 930 |
| LTB-1 | 48 – 52 | 375 – 385 | 17 – 19 | 880 – 1000 |
| LTB-2 | 42 – 47 | 365 – 375 | 18 – 20 | 850 – 950 |
| Grade / Designation | Density (kg/m³) | Poisson's Ratio | Modulus of Elasticity (GPa) | Shear Modulus (GPa) | Specific Gravity |
|---|---|---|---|---|---|
| G1 / Grade I | 8,700 | 0.34 | 110 – 120 | 40 – 45 | 8.7 |
| G2 / Grade II | 8,600 | 0.34 | 105 – 115 | 38 – 44 | 8.6 |
| G3 / Grade III | 8,500 | 0.33 | 100 – 110 | 36 – 42 | 8.5 |
| LG1 | 8,300 | 0.33 | 95 – 105 | 34 – 40 | 8.3 |
| LG2 | 8,200 | 0.32 | 90 – 100 | 32 – 38 | 8.2 |
| LG3 | 8,100 | 0.32 | 85 – 95 | 30 – 36 | 8.1 |
| LTB-1 | 8,600 | 0.34 | 105 – 115 | 38 – 44 | 8.6 |
| LTB-2 | 8,300 | 0.33 | 95 – 105 | 34 – 40 | 8.3 |
| Standard System | Grade / Designation | Equivalent / Common Trade Name |
|---|---|---|
| British Standards (BS) | G1 / Grade I | BS1400 G1-C |
| G2 / Grade II | BS1400 G2-C | |
| G3 / Grade III | BS1400 G3-C | |
| LG1 | BS1400 LG1-C | |
| LG2 | BS1400 LG2-C | |
| LG3 | BS1400 LG3-C | |
| Indian Standards (IS) | LTB-1 | IS 318 LTB-1 |
| LTB-2 | IS 318 LTB-2 |
| Grade / Designation | Inner Diameter (mm) | Outer Diameter (mm) | Length / Width (mm) | Wall Thickness (mm) |
|---|---|---|---|---|
| G1 / Grade I | 10 – 200 | 20 – 300 | 20 – 300 | 5 – 50 |
| G2 / Grade II | 15 – 180 | 25 – 280 | 25 – 250 | 5 – 45 |
| G3 / Grade III | 20 – 150 | 30 – 250 | 25 – 200 | 5 – 40 |
| LG1 | 20 – 120 | 35 – 220 | 20 – 180 | 5 – 35 |
| LG2 | 15 – 100 | 30 – 180 | 20 – 150 | 5 – 30 |
| LG3 | 10 – 80 | 25 – 150 | 15 – 120 | 5 – 25 |
| LTB-1 | 15 – 180 | 25 – 280 | 25 – 250 | 5 – 45 |
| LTB-2 | 20 – 150 | 30 – 250 | 25 – 200 | 5 – 40 |
| Inner Dia (mm) | Outer Dia (mm) | Length (mm) | Weight (kg) |
|---|---|---|---|
| 20 | 30 | 50 | 0.31 |
| 25 | 40 | 50 | 0.54 |
| 30 | 50 | 50 | 0.86 |
| 40 | 60 | 50 | 1.31 |
| 50 | 70 | 50 | 1.87 |
| 60 | 80 | 50 | 2.55 |
| 70 | 90 | 50 | 3.35 |
| 80 | 100 | 50 | 4.28 |
| 90 | 110 | 50 | 5.32 |
| 100 | 120 | 50 | 6.48 |
| Grade / Designation | Cu % | Sn % | Pb % | Zn % | Other % |
|---|---|---|---|---|---|
| G1 / Grade I | 88 – 90 | 8 – 10 | ≤ 1 | 1 – 2 | Fe ≤ 0.1 |
| G2 / Grade II | 85 – 88 | 10 – 12 | ≤ 2 | 1 – 2 | Fe ≤ 0.1 |
| G3 / Grade III | 83 – 87 | 10 – 14 | ≤ 3 | 1 – 3 | Fe ≤ 0.1 |
| LG1 | 80 – 85 | 10 – 15 | 5 – 7 | 0 – 2 | Fe ≤ 0.1 |
| LG2 | 78 – 82 | 10 – 16 | 5 – 7 | 0 – 3 | Fe ≤ 0.1 |
| LG3 | 75 – 80 | 12 – 18 | 6 – 8 | 0 – 3 | Fe ≤ 0.1 |
| LTB-1 | 85 – 88 | 10 – 12 | ≤ 2 | 1 – 2 | Fe ≤ 0.1 |
| LTB-2 | 80 – 85 | 12 – 15 | 5 – 7 | 0 – 2 | Fe ≤ 0.1 |
| Stage | Process / Technique | Description / Purpose |
|---|---|---|
| Raw Material Selection | Copper, Tin, Zinc, Lead (if required) | Selected as per BS 1400 / IS 318 grade |
| Charge Preparation | Accurate batching | Ensures correct alloy composition for G1, G2, G3, LG grades |
| Melting | Induction / Oil-fired furnace | Melting temperature 1000 – 1150 °C |
| Fluxing | Flux & degassing agents | Removes oxides & gas inclusions |
| Alloying | Addition of Tin & Zinc | Achieves specified chemical composition |
| Temperature Control | Pyrometer monitored | Prevents segregation & overheating |
| Casting Method | Centrifugal Casting / Sand Casting | Centrifugal preferred for bushes for uniform wall thickness |
| Mould Type | Metallic / Sand mould | Produces round bushes with required dimensions |
| Pouring | Gravity / Centrifugal | Uniform metal flow for defect-free casting |
| Solidification | Controlled cooling | Reduces shrinkage & porosity |
| Knockout | Mould removal | After solidification |
| Fettling | Removal of risers & gates | Cleans bush surfaces |
| Machining | CNC / Lathe turning | Achieves precise ID, OD & length |
| Heat Treatment (Optional) | Stress relieving / annealing | Improves machinability & dimensional stability |
| Surface Cleaning | Shot blasting / wire brushing | Removes scale, sand, and improves surface finish |
| Inspection | Dimensional, visual & hardness | Ensures conformance to specifications |
| Packing | Wooden crates / bundles | Safe storage and transport |
| Finish Technique | Process / Method | Surface Quality / Result | Purpose / Application |
|---|---|---|---|
| As-Cast Finish | After casting | Rough surface | Non-critical applications or preliminary inspection |
| Shot Blasting | Steel / glass beads | Clean, uniform matte surface | Removes sand, scale, and improves surface |
| Grit Blasting | Abrasive blasting | Slightly roughened surface | Pre-machining preparation |
| Machined Finish | CNC lathe / turning / boring | Smooth & dimensionally accurate | Precision bushes, bearing fit |
| Rough Machining | Lathe / facing | Removes excess material | Pre-finish stage |
| Fine Machining | Finish turning / boring / grinding | Fine surface finish | Ensures tight tolerances for bearing performance |
| Polished Finish | Buffing / manual polishing | Smooth & glossy | Decorative / exposed parts |
| Lapped Finish (Optional) | Manual / machine lapping | Very fine finish | High-precision bearing surfaces |
| Deburring | Manual / mechanical | Sharp edges removed | Safety & assembly convenience |
| Protective Coating | Oil coating / anti-rust spray | Corrosion protection | Storage & transport |
| Finish Type | Ra Value (µm) |
|---|---|
| As-Cast | 12 – 25 |
| Shot Blasted | 6 – 12 |
| Machined | 3 – 6 |
| Fine Machined | 1.5 – 3 |
| Polished / Lapped | ≤ 1.5 |
| Application Area | Use of Gun Metal Bushes | Reason for Use |
|---|---|---|
| Automotive Industry | Suspension bushes, steering components | Good wear resistance and load-bearing capacity |
| Heavy Machinery | Shaft supports, rotating parts | Low friction and high strength |
| Pumps & Motors | Pump shafts, motor housings | Corrosion resistance and durability |
| Marine Equipment | Propeller shafts, marine bearings | Excellent resistance to seawater corrosion |
| Agricultural Machinery | Tractor linkages, rotating joints | Shock resistance and long service life |
| Gear Systems | Worm gear bushes, gear supports | Smooth operation and wear resistance |
| Industrial Equipment | Conveyor systems, rolling mills | Handles heavy loads and continuous operation |
Packaging is a major part of every delivery, and we understand it very well. We supply many types of metals and other industrial metal products to make sure they reach our customers safely. We know products face many types of problems, such as vibration, moisture and rough handling therefore we follow a careful and organised packaging process. Our goal is simple: we deliver every product in the same strong and perfect condition as when it leaves our facility.
We check every order before packing it. The size, straightness, surface quality, grade, and quantity of each rod and bar are checked. We ensure that the material is correct as per the customer request. Once inspected, we sort the products by their size and grade of material. This will ensure that we maintain the order in everything and prevent errors in dispatch. Bundling and loading are also simpler and quicker.
After these steps, make sure to arrange the products in proper alignment so that they are straight and balanced. Then they are strapped down with industrial grade strapping. These straps keep the bundle secure during lifting and transportation. We include additional support to shorten bending or movement in longer rods. We also ensure that the straps do not tear the edges or the surface of the material. This cautious wrapping ensures the merchandise is secure throughout the delivery and transportation.
Sometimes metal can be damaged by moisture and changing weather conditions. We apply protective methods based on the shipment type and destination. We may use anti-rust coatings, moisture-resistant wrapping, or protective covers to prevent them. Our additional cover against humidity and corrosion is given to export shipments and coastal deliveries. These will assist us to retain the shine, surface finish and integrity of our metal products in the long-distance transportation.
In case of large orders and/or shipments to the export market, we offer extra protection. We pack them on heavy pallets or stuff them into tough wooden structures that can be transported all over the world. The packaging is dependent on the size and weight of the shipment. We ensure that the packing is able to withstand packing pressure and movement of containers. This strong outer coating secures the materials throughout their long trips, port services and storage in warehousing.
We have proper lifting equipment such as forklifts and cranes to load materials. Our team places the bundles carefully inside trucks or containers. We place them in such a manner that they do not roll or shift during the transportation. We balance the weight to minimise the weight on any section of the shipment. Our safe loading methods give us the chance to reduce the chances of being damaged in transit, whether it is along the road or the sea.
Ganga R Ispat Metals distributes its products in India and also in overseas markets. We provide transportation with trusted logistics vendors. In the case of domestic deliveries, we organise road transportation. In export orders, we meet the international shipping standards and container loading requirements. Each shipment will be planned based on the delivery schedules to make it arrive on time. Our well organized transport system assists us in delivering products in an efficient and safe way.
We make ready all papers preceding dispatch. These documents can be invoices, packing lists, and required certificates. Proper documentation assists in easy transportation and reduced time in clearance of customs when making export shipments. We have good records to promote transparency and professional service.
A well-structured packaging and transportation process directly impacts product performance upon delivery. Our approach ensures:
We believe that packaging is not just about wrapping materials — it is about protecting the value and reliability of the product until it reaches the client.
In Ganga R Ispat Metals, we suppose that safe packaging and transportation ensure the value of our products. To avoid bending, scratches, and corrosion, we make every effort to avoid transit damage. We consider packaging as our quality responsibility. We have a standard process; however, our packing techniques are changed according to the product size, order quantity, and destination.
We ensure that all the rods and bars are sold to our customers in a powerful, secure and working condition. We offer secure packaging or assured transportation as an additional service.
Due to the minimal self-lubricating ability and the ever-strong wear resistance, the gunmetal bushes will require a minimal amount of maintenance.
A custom service is available to meet the requirements of a specific application or piece of equipment.
Yes, due to the structural design of gun metal, it allows it to function well in constant high-load applications with very little to no wear.
Gunmetal possesses great industrial corrosion resistance, excellent load-bearing ability, and overall serviceable life in industrial applications.
Gunmetal bushes are made of quality-controlled composition and precise machining. This guarantees a long life and the ability to work with the bushes over and over again without having issues.
