Babbit ( White Metal ) Coating & Repair

Thrust Bearings
Journal Bearings
Tilting Pad Bearings
Spherical Bearings
Trunnion Bearing
Kiln Bearings
Sleeve Bearings
Hydrodynamic Bearings

INDUSTRIAL BEARING SOLUTIONS

7/24 SERVICE FOR AFRICA COUNTRIES: NIGERIA - GHANA - SENEGAL - NIGER - MALI - BENIN - ANGOLA - MAURITANIA - LIBYA - ALGERIA - LIBERIA - GABON - BURKINA FASO - NAMIBIA - GUINEA

ABOUT US

With over 25 years of experience, Spartans Contracting has undertaken numerous challenging maintenance and repair projects. To date, they have completed over 120 bearing and shaft repairs. Since 2023, they have continued their maintenance and repair activities in Nigeria, successfully completing Babbitt (White Metal) coating repair work on 120MW BBC Steam Turbine bearings and various industrial pump bearings. Furthermore, thanks to their global supply network, they also supply new bearings, bushings, mechanical seals, and other spare parts for heavy industrial equipment.

They continue to provide services throughout Nigeria, particularly targeting "Hydropower Plants, Steam Turbines, Refineries, Cement Plants, Sugar Mills, and Mining Facilities".

SERVICES

White Metal Coating

Babbitt Bearing Coating

We are engaged in offering a wide range of White Metal, which is renowned for its high corrosion resistance, high tin content and lower wear rate. Our range finds usage in diverse applications such as aviation, automobiles and defense. We can offer customization in terms of lining material as per the clients' specific requirements.

Repair Service

Repair

All types of white metal lined bearings can be repaired

Re-metaling by centrifugal casting, gravity casting or TIG overlay.

NDT inspection acceptance criteria as per ISO 4386 standard. Reliable quality control and quality assurance

Final Surface

Performance Impact:

It is typically achieved through precision machining, grinding, and honing/lapping to ensure optimal surface finish, which dictates the bearing's friction, noise, and overall service life. A properly finished surface is crucial to prevent premature wear, noise, and vibrations. Improper finish can lead to micro-pitting from asperities or excessive heat from lack of lubrication.

Test & Calibration

Babbitt Coating Tests

Bearing testing and calibration ensure the reliability, accuracy, and quality of bearings by measuring vibration, noise, and structural integrity, typically using devices like Anderon meters, eddy current blocks, or specialized load frames. The most common non-destructive method. It uses high-frequency sound waves to detect "disbonds" (air gaps) between the Babbitt and the shell...

We are now present in all West African countries, offering fast delivery and guaranteed solutions.

Over 40 strong, our production, engineering, operations and sales team has the knowledge and expertise second to none. Meeting the needs of our customers is our highest priority.

7/24 SERVICE FOR AFRICA COUNTRIES: NIGERIA - GHANA - SENEGAL - NIGER - MALI - BENIN - ANGOLA - MAURITANIA - LIBYA - ALGERIA - LIBERIA - GABON - BURKINA FASO - NAMIBIA - GUINEA

Tilting Pad

Tilting Pad Manufacturing

Tilting pad bearings are manufactured using high-precision techniques, typically involving steel-backed pads with babbitt lining for fluid-film lubrication in heavy-duty rotating equipment. Manufacturing includes specialized pivot design, material sourcing, meticulous machining of curved or broken-line profiles to micron-level tolerances, and final quality inspections for superior load capacity and vibration damping.

Reverse Engineering

RE Refurbishment

Our reverse engineering services allow us to extract all critical dimensional specifications and material information from your existing bearings, which is essential for creating accurate replacement parts with precision specifications. we set ourselves apart by offering comprehensive engineering and manufacturing services.

Babbitt Metal

White Metal Material Sale:

White-Metal

This is a generic name given to alloys of tin, lead and antimony and all copper-zinc alloys containing more than 60% zinc. It includes pewter, soft solder, Britannia metal, type-metals, antifriction alloys, bearing alloys and Babbitt metal.

Ingot and Wire Type

Bronze Bushing

Manufacturing

Most industrial machines require wear liners or bushings made from copper alloys. Industrial machines require bearings or bushings that can operate at specified application speeds and resist the rigors of the intended setting.

Cast Bronze Bushings

Thrust Washers

TECHNICAL

INDUSTRIAL BEARINGS

Babbitt bearings are found on motors, fans, pumps, turbines generators and other industrial equipment. The bearings are designed to support the weight of the shaft, while providing a non-damaging surface for the high speed rotating shaft. In a Babbitted bearing, the lining of the bearing is bonded with Babbitt (a low melting-point, soft alloy). In the event of a failure or contamination of the lubrication system, electric arcing, or just wear over time, the softer Babbitt alloy wears instead of the journal or shaft.

While nearly all Babbitt bearings are used in oil-lubricated systems, they have different design features depending on shaft speed, bearing load, shaft stability, bearing cooling, alignment problems and electrical insulating requirements, load and speed. Bearings can be fitted with vibration and temperature sensors and can even be water cooled as needed. Babbitt bearings are a reliable part of equipment which runs for years and requires little maintenance and attention.

Steam Turbine Bearings, Gas Turbine Bearings, Hydro Turbine Bearings, Cement Kiln Bearings, Compressor Bearings, Rotary Equipment Bearings, Circulation Pump Bearings

WHITE METAL - BABBITT

Babbit Bearings are a proven bearing solution in industry. They are particularly suitable where high load capacity, smooth running and safety are required. They usually consist of a stable carrier material such as steel or CuCr, which is coated with a soft, sliding white metal alloy. This metal compound, which is usually based on tin or lead, gives the bearing its unique tribological properties.

In engineering applications, White Metal Bearings is primarily used to line cast iron, steel and bronze bearing shells. Usually, it is a tin based or lead based alloy containing moderate amounts of copper and antimony.

Main Applications Are:

Turbine, Compressor, Pump shaft bearings
I.D. Fan bearings
Forced Draft (FD) bearings
Circulation Water (CW) bearings
Pump and Turbine thrust pads
Motor thrust pads
Thrust faces of special journal bearings
Diesel Engine Block bearings

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Babbitt ( White Metal ) Chemical Composition:

ASTM-B23 Babbitt: Tin-Based

Tin based Babbitt metals will contain over 80% tin along with other metals such as antimony, lead, and copper in varying amounts. No matter the grade of the tin-based Babbitt, each category contains the same amount of iron, bismuth, zinc, aluminum, cadmium, and arsenic. Tin-based Babbitt bearings are commonly used in heavy machinery, compressors, and electric motors.

ASTM-B23 #1: ASTM-B23 #1 contains 90% or more tin along with 4% to 5 % of copper and antimony. It’s commonly used in high heavy load applications and functions possessing high speeds.

ASTM-B23 #2: This Babbitt alloy has roughly 88% up to 90% tin with 7%-8% antimony and 3% to 4% copper. Like all tin allows, they have strong corrosion resistance and easy bonding. This alloy is considered softer than grade #1 Tin-based Babbitt yet can also be used for heavy load applications.

ASTM-B23 #3: This alloy has the lowest amounts of tin for this category at only 83% to 85%. It also has higher amounts of antimony and copper compared to the other grades (7% to 8%). So the alloy has low density.

ASTM-B23 #11: This Tin Babbitt contains roughly 86% to 89% tin along with 6%-7% antimony and 5% to 6% copper. With the increase of copper, the alloy can withstand high temperatures for heavy load applications. It is also often used for medium to light pressure applications.

ASTM-B23 Babbitt: Lead-Based

Lead-based Babbitt alloys contain 75% or more of lead materials with lesser degrees of tin and antimony. This time of alloy possesses high thermal conductivity, excellent corrosion resistance, and good friction capabilities. While it can handle heavy loads, it is often used for low and medium speed applications. Lead-based Babbitt metals are often found in heavy machinery, conveyors, line shafting, and elevators.

ASTM-B23 #7: ASTM-B23 #7 has the highest amount of tin at roughly 9.3% and antimony at 14%. The remainder of the alloy is lead with varying lesser amounts of other metals. This metal can handle moderate loads and moderate speeds. It can be found in sleeve bearings.

ASTM-B23 #8: This alloy has similar amounts of antimony to grade #7 yet a lower amount of tin at around 4.5%. The rest of it is lead. It has anti-friction properties and can handle low speed machinery as well as engines and generators.

ASTM-B23 #13: The lead-based alloy has roughly 5.5% tin and 9.5% antimony with the remaining rate containing lead. The alloys in this category are economical for a wide range of low speed applications.

ASTM-B13 #15: The alloy in this category has the lowest amount of tin at 0.8% and highest amount of antimony at 14.5% with the remainder of it being lead. This alloy has a micrograin and is typically reserved for low speed applications.