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API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
Specifications
Brand Name :
ZS
Model Number :
1824D
Certification :
API
Place of Origin :
China
MOQ :
5
Price :
23300
Payment Terms :
T/T
Supply Ability :
500
Delivery Time :
30 days
Packaging Details :
Steel frame
Description

Oilfield Pumping Unit Gear Reducer (Gearbox)

This heavy-duty gear reducer is designed for beam pumping units in oilfield applications. It reduces the motor speed to drive the crank mechanism, converting rotary motion into reciprocating beam movement for oil extraction. It meets API Spec 11E standards and is built for long-term, high-load operation in harsh environments.

Parameter Standard Range Notes
Applicable Standard API Spec 11E, SY/T 5044 Compliant with oilfield pumping unit standards
Model Series JLH / CJH / API Standard (e.g., 320, 456, 640, 800, 1280) Matches CYJ/CYJY pumping unit series
Rated Output Torque 6.5–89 kN·m (5,000–65,000 ft-lbs) Depends on model (common: 9, 13, 18, 26, 37, 48 kN·m)
Transmission Ratio 25–35:1 Typical ratios for pumping units: 31.73, 30.56, 29.3
Input Speed 750–1500 RPM Matches standard electric motor speeds
Output Speed 20–60 RPM Adjusts pumping unit stroke frequency
Gear Type Double helical (herringbone) or helical gears Smooth, high-efficiency power transmission
Gear Material 20CrMnTi alloy steel, case-hardened Surface hardness: HRC 58–62
Housing Material Cast iron (HT200/HT250) High rigidity and vibration resistance
Lubrication Splash lubrication with gear oil (ISO VG 150/220) Oil bath system for continuous gear lubrication
Brake Type Band brake / shoe brake For controlled stopping and holding under load
Operating Temperature -40°C ~ +55°C Adaptable to extreme oilfield climates
Mounting Style Horizontal base-mounted Compatible with standard pumping unit frames

Working Principle

1. Power Input: The electric motor drives the reducer input shaft via a V-belt pulley.

2. Speed Reduction: Multiple stages of helical gears reduce the input speed while multiplying torque.

3. Torque Output: The low-speed, high-torque output shaft drives the pumping unit crank.

4. Motion Conversion: The crank converts rotary motion into reciprocating beam movement, powering the sucker rod string.

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API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel

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Product Detail
Brand Name :
ZS
Model Number :
1824D
Certification :
API
Place of Origin :
China
MOQ :
5
Price :
23300
Contact Supplier
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel
API Spec 11E Compliant Oilfield Pumping Unit Gear Reducer with Double Helical Gears and 20CrMnTi Alloy Steel

Puyang Zhongshi Group Co., Ltd.

Verified Supplier
8 Years
Shaanxi
Since 1997
Business Type :
Manufacturer, Exporter
Main Products :
Sucker Rod Pump, Downhole Pumps, Rod Insert Pump
Total Annual :
5 million-10 million
Employee Number :
570~600
Certification Level :
Verified Supplier
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