Product description
Left and Right Big Gears are precision-machined transmission components for reciprocating pumps and pressure pumping equipment used in oilfield drilling, hydraulic fracturing, cementing, and other high-pressure applications. OEM manufacturing and custom production are available based on customer drawings, samples, or technical specifications.
Applications
Oil & Gas Drilling – Transmission components for drilling and well servicing equipment.
Hydraulic Fracturing – High-load gear systems for fracturing pumps and pressure pumping equipment.
Cementing Services – Pump transmission components used in oilfield cementing operations.
Well Intervention & Workover – Replacement gears for workover and well maintenance equipment.
Industrial High-Pressure Pumping – Heavy-duty gear components for reciprocating pumps used in industrial fluid transfer applications.
Oilfield Equipment Manufacturing – OEM gear production for new pump assemblies and complete pressure pumping equipment.
Aftermarket Spare Parts – Replacement components for equipment maintenance, repair, and overhaul (MRO).
Customization Options
Gear Profile
Outer diameter (OD), face width, metric module, or imperial diametral pitch.
Teeth Specs
Tooth count, custom helix angles, and pressure angles.
Bore & Shaft Fit
Inner bore diameter, custom keyways, or spline profiles.
Material Selection
High-strength alloy steel (e.g., 42CrMo, AISI 4140) or specified carbon steel.
Heat Treatment
Carburizing, quenching, tempering, or surface induction hardening.
Configuration
Supplied as individual replacement gears or as precision-matched pairs (Left & Right sets).
Manufacturing Strengths
Established Manufacturing Base – Founded in 2011 with a production facility covering 35,000 m², including 18,000 m² of manufacturing workshops.
Advanced Machining Equipment – Equipped with over 80 sets of precision machining equipment, including CNC machining centers, CNC lathes, horizontal and vertical machining centers, large boring and milling machines, and automated production systems.
Stable Production Capacity – Annual production of more than 550 sets of hydraulic ends, reciprocating pumps, and related equipment, along with over 1,500 tons of oilfield equipment components and spare parts.
OEM Manufacturing Support – Capable of producing standard and custom Left and Right Big Gears according to drawings, samples, or technical specifications.
Experienced Engineering Team – Skilled production and engineering personnel support efficient manufacturing, process control, and consistent product quality.
Quality Control & Certified Production
A standardized quality management system is implemented throughout material sourcing, machining, heat treatment, inspection, and final packaging to ensure every gear meets customer specifications.
Quality Management
• API Q1 Quality Management System
• API 6A Product Certification
• ISO 9001 Quality Management System
• ISO 14001 Environmental Management System
• ISO 45001 Occupational Health and Safety Management System
Inspection & Process Control
• Raw material verification
• Dimensional inspection
• Heat treatment verification
• Hardness testing
• Gear tooth profile inspection
• Final quality inspection before shipment
• Product traceability throughout production
Packaging
After final inspection, each gear is cleaned, treated with anti-corrosion protection, and packaged to minimize the risk of damage during transportation.
Packaging options include:
- Rust preventive protection
- Individual protective wrapping
- Wooden cases for export transportation
- Customized packaging and marking upon request
Frequently Asked Questions
Q: What equipment are the Left and Right Big Gears used in?
A: They are primarily used in reciprocating pumps for drilling, hydraulic fracturing, cementing, and other high-pressure pumping applications.
Q: Can the gears be manufactured according to customer drawings?
A: Yes. OEM manufacturing is available based on technical drawings, CAD files, samples, or OEM part numbers.
Q: Are left and right gears supplied as matched sets?
A: Yes. The gears can be supplied as matched pairs to ensure proper meshing and stable transmission performance. Individual replacement gears are also available when required.
Q: Do you provide heat treatment?
A: Yes. Heat treatment processes are selected according to product specifications and customer requirements to achieve the required mechanical properties.
Q: How are the gears inspected?
A: Inspection includes raw material verification, dimensional measurement, gear tooth inspection, hardness testing, surface inspection, and final quality verification before shipment.
Q: Can product dimensions be customized?
A: Yes. Gear size, module, number of teeth, bore dimensions, and other specifications can be manufactured according to customer requirements.
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