Top Drive 117603 Nov TDS Compound Helical Gear

• Customization: Available
• Application: Motor, Machinery, Top Drive System
• Hardness: Hardened Tooth Surface
• Gear Position: External Gear
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Double Helical Gear
• Material: Cast Steel
• Type: Circular Gear
• Surface Operation: Polishing & Oil
• Lead Time: 1- 4 Weeks
• Document 1: Test Report
• Document 2: Quality Certificate
• Name Plate: Customized
• Transport Package: Wooden Case
• Specification: OD. 45mm-480mm
• Trademark: VSP
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000 PCS / Year

Product Description

Product Description

 

As the core transmission component of NOV (National Oilwell Varco) top drive systems, NOV Top Drive Gears redefine reliability, efficiency, and longevity in global oil and gas drilling. Engineered with cutting-edge material science, precision manufacturing, and rigorous field validation, these gears are the ultimate solution for deep-well, ultra-deep-well, and geologically complex drilling environments.
Advanced Material Science:
Forged from aerospace-grade alloy steel (e.g., 20CrNiMo), our gears undergo multi-stage vacuum degassing to eliminate impurities, ensuring exceptional material purity and uniform microstructure. This delivers ultra-high tensile strength (≥1,500 MPa) and superior fracture toughness.
Thermal Treatment:
Multi-layer controlled carburizing and quenching (case depth: 1.5-2.2 mm) combined with cryogenic treatment achieve gradient hardness distribution (surface hardness HRC 58-62, core hardness HRC 32-38), balancing wear resistance and impact resilience for sudden torque shocks in downhole conditions.
Precision Machining:
Processed with 5-axis CNC grinding machines and K-profile modification technology, gear pairs achieve AGMA Class 13 (ISO 1328 Class 3) meshing accuracy. Surface roughness ≤Ra 0.4 μm minimizes edge stress concentration, reducing power loss and heat generation.
Dynamic Performance: Validated for Extreme Conditions
Torque Capacity:
Full torque range coverage from 2,000 to 50,000 N·m. FEA-optimized root fillets and tooth profiles enhance fatigue limits by 30%, supporting extreme scenarios like frequent directional reversals and high-inertia loads.
Vibration & Noise Control:
Phase-optimized meshing design and dynamic balancing (residual unbalance ≤1.0 g·mm/kg) ensure gearbox vibration ≤4.5 mm/s (ISO 10816-3) and noise levels ≤85 dB(A), enabling smooth, long-term operation.
Environmental Resilience:
PVD nano-coating (e.g., CrAlN) and high-pressure rust-inhibiting oil ensure compliance with ASTM B117 salt spray resistance (≥1,000 hours) and NACE MR0175 H2S corrosion standards. Ideal for offshore platforms, high-sulfur fields, and harsh environments.
Applications & Lifespan Assurance
Complex Drilling Scenarios:
Deep/Ultra-Deep Wells: Withstands sustained high torque and axial vibration in wells exceeding 8,000 meters.

Other Spares & Part Numbers Related to NOV Gears

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120262-1	SHIM,GEAR,COMPOUND,TDS10
120262-2	SHIM,GEAR,COMPOUND,TDS10
120262-3	SHIM,GEAR,COMPOUND,TDS10
120262-4	SHIM,GEAR,COMPOUND,TDS10
120262-5	SHIM,GEAR,COMPOUND,TDS10
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120684	Compound Gear Assembly
1410141	Sleeve,Upper,IntermediateShaft,Gearbox,EMI-400
1410401	Sleeve,Pinion,Gearbox,EMI-400
7962	029 - Bushing,QuillGear,RadialLocation,Gearbox,HMI
	**4-5 Week Delivery**

 

Main Product

Company Profile

SHANDONG VS PETROLEUM TECHNOLOGY CO.LTD (VSP), founded in 2010, takesthe Manufacturing,mport & Export of petroleum equipment as the main businessand the oil&gas drilling logistics support and technical services as the carrier, thisenables it to meet the increasing demand of equipment for domestic and foreignpetroleum industry. VSP has independently developed and launched the DQ seriestop drive, which are suitable for drilling operations at depths ranging from 2000 to7000 metres. lt also provide OEM parts and substitutes for top drive Of VARCO,TE-SCO,CANRIG,TPEC,JH,BPM,HongHua.With 16 years of experience in the top drive market, we have established a com-plete OEM import channel in the United States, Canada, and the European Union.Through strict price and quality control, we have become a long-term qualifedsupplier for companies such as CNPC, SINOPEC,CNOOC, and COPE.We strive to build lasting relationships with customers based on consistent perfor-mance,This is achieved by ensuring maximum attention with excellent service,qual-ity products, competitive prices. and prompt delivery.At VSP, customer satisfaction is our priority.

Our Advantages

Certifications

Exhibition

Packaging & Shipping

1-Package and transportation
According to the different characteristics of goods and customer needs, we provide a variety of packaging methods, can also be packaged according to customer requirements, packaging types include wooden boxes, iron shelves, environmental protection paper boxes, containers, etc., to ensure the safety and integrity of goods in the process of transportation:
Wooden case packaging: suitable for heavy or large volume goods, such as machinery and equipment, large parts and so on. Wooden pallet packaging has high load-bearing capacity and stability, can effectively prevent the goods from moving or damaged in the process of transportation
Paper box packaging: suitable for lightweight, fragile or regular small goods, such as electronic products, daily necessities, etc. Environmental paper box is not only low cost, but also has good environmental performance
Wood pallet packaging: The goods are fixed on the wooden pallet and reinforced with bolts or nails to ensure that the goods are closely combined with the wooden pallet. For heavy goods, additional support structures are added to prevent the goods from tilting during transportation
Container packaging: suitable for the transportation of large quantities of goods, can effectively use space, reduce transportation costs. The interior of the container can be customized according to the characteristics of the goods to ensure the safety of the goods
2-Marks and labels:
The name, specification, quantity, destination, transportation requirements and other information of the goods shall be clearly marked on the packaging surface to ensure identification and convenient operation during transportation
For special goods (such as fragile goods, dangerous goods), post a prominent warning label to remind the transport personnel to pay attention to the operation.
3-Shipping Methods of delivery:
Sea transport: Ensure that the packaging can withstand the long-term maritime transportation environment, especially moisture-proof and salt spray corrosion. For moisture-prone goods, use moisture-proof packaging materials
Air transport: Due to the limitations of air transport on the volume and weight of goods, the packing should be as compact as possible, while ensuring that the goods will not be damaged by changes in air pressure during transportation
Land transport: by train or trucks, In long-distance land transport, the packaging needs to have good shock resistance to prevent damage to goods on bumpy roads

FAQ

 1. International standards and certification system
VSP products shall comply with API (American Petroleum Institute), ISO (International Organization for Standardization) and other international standards to ensure the global versatility and reliability of the products. The related products have passed CE (EU certification), API certification, ASME (American Institute of Mechanical Engineers certification) and other authoritative certification to prove that their quality and performance meet the industry requirements

2.Quality testing system

VSP equipment and spare parts subject to strict quality testing in the production process, including material testing, performance testing and field testing, and issue quality testing report to ensure the safety and stability of the product in practical application.

3.Products performance control

With years of industry experience, we focus on the following aspects to improve the performance of products:
1)Material selection and anti-corrosion protection
2)Sealing design
3)working Pressure and temperature
4) flow capacity control
5) Power and torque
6) Explosion-proof and protection level

4.Installation ,use and training
1) we provide the detailed the guild book of Installation and operation, and related technical support documents as client's requirement, meanwhile VSP will afford the long-range remote guidance for trouble shooting.
2) VSP will provide the training work for related equipment in our workshop or on worksite of user, for specific articles, will refer to the training agreement.

3)The users should also consider the Working condition matching on site.

5.Maintenance and Repairation
Replace the vulnerable parts regularly
Inspection of Fasteners
Regular lubrication
Cleaning and dust removal
Electrical system maintenance

6. Transportation and packaging
All equipment and materials must be firmly packed with vibration reduction and shock prevention measures to ensure integrity during ocean travel, land transportation and multiple handling, loading and unloading
Packaging according to the characteristics and needs of the equipment, plus moisture, mildew,
rust, corrosion protection measures, to ensure that the goods are safely delivered to the installation site without any damage or corrosion
Choose transport correctly and maintain them to ensure they are in good condition

7.After-sales service and technical support
Quick response, the company provides 24-hour after-sales consulting service, after customers submit questions by phone, email or online platform, professional and technical personnel will give a clear answer within 1 hour, to ensure that the customer's problems are solved in time
Each after-sales consultation will be recorded by the system and generated with a unique number. Customers can query the progress of problem processing at any time through the number to ensure that the problem is tracked and closed-loop management.
In order to meet the needs of global customers, the after-sales consulting team is equipped with multi-language service personnel, able to communicate with customers in English, Russian, Arabic and other languages, to ensure the accuracy and efficiency of information transmission.