+86 156 6741 7176
+86 123 456 7890
+86 123 456 7890
+86 156 6741 7176
Pinion Shaft for Mud Pump
The Big Gear Wheel (Bull Gear) and Pinion Shaft (Pinion) assembly is the core of the mud pump's power transmission system, playing a vital role in ensuring the stable and efficient operation of the mud pump. This assembly is specifically designed to fit mud pump models 3NB-350, 3NB-500, 3NB-800, 3NB-1000, 3NB-1300, and 3NB-1600, ensuring perfect compatibility and reliable performance.
Product Description
The pinion shaft is directly driven by the prime mover (engine or motor), and its smaller pinion gear meshes with the much larger bull gear mounted on the crankshaft. This gear reduction step significantly increases the torque delivered to the crankshaft, enabling it to drive the pistons and overcome the immense pressure developed in the fluid end. Both components are manufactured to the highest standards to withstand the harsh working conditions of oilfield drilling.
Pinion Shaft Details
The pinion shaft is a critical component of the mud pump, crafted from forged 42CrMo alloy steel for exceptional strength and durability. It is precision-machined with a high-precision double helical (herringbone) gear featuring a medium-hard tooth surface, ensuring optimal performance and longevity.
For ease of maintenance, single-row radial roller bearings with double-ribbed outer rings are adopted. The pinion shaft is extended at both ends, allowing a pulley or sprocket to be installed on either end, enhancing flexibility in installation and use.
Key Features
- High-Strength Material: Both the big gear wheel and pinion shaft are made of high-strength, hardened alloys (pinion shaft: forged 42CrMo alloy steel) to withstand tremendous cyclic loads and stresses in harsh drilling environments.
- Precision Machining: High-precision double helical (herringbone) gear on the pinion shaft ensures perfect meshing, enabling extremely smooth operation with nearly no noise or vibration, and improving power transmission efficiency.
- Minimal Gear Clearance: The precision gear design results in minimal gear clearance, allowing smooth running without any pre-wear or running-in period, reducing maintenance time and costs.
- Easy Maintenance: Single-row radial roller bearings with double-ribbed outer rings simplify maintenance, reducing downtime and operational costs.
- Flexible Installation: Extended ends of the pinion shaft allow pulley or sprocket installation on either end, adapting to different installation requirements.
- Perfect Compatibility: Specifically designed for mud pump models 3NB-350/500/800/1000/1300/1600, ensuring a perfect fit and reliable power transmission.
Importance of the Assembly
The condition of the big gear wheel and pinion shaft is paramount to the mud pump's operation. Any damage or excessive wear can lead to inefficient operation, catastrophic failure, and extensive damage to the entire power end. As a major capital component of the mud pump, our assembly is engineered for durability, reliability, and long service life, minimizing downtime and maximizing operational efficiency.
Technical Specifications
|
Brand |
Compatible Models |
|
BOMCO |
F-500, F-800, F-1000, F1300, F1600, FB-1300, FB-1600, D-375, D-700 |
|
LANSHI |
3NB-1300C, 3NB-1000, 3NB-1000C, 3NB-800 |
|
QINGZHOU |
SL3NB-1300A, QZ-1000, QZ-500, QZ-350, QZ-800, SL3NB-1600 |
|
HONGHUA |
3NB-1600F, HHF800/1000, HHF1300/1600, HHF1600HL, HHF2200HL |
|
DRILLMEC |
7TS450, 7TS600, 9T800, 9T1000, 10T1300, 12T1600 |
|
EMSCO |
F-500, F-800, F-1000, F1300, F1600, FB-1300, FB-1600, FC-1600, FC-2200 |
|
IDECO |
T-500, T-800, T-1000, T-1300, T-1600 |
|
GARDNER DENVER |
PZ-7, PZ-8, PZ-9, PZ-10, PZ-11 |
|
NATIONAL |
7-P-50, 8-P-80, 9-P-100, 10-P-130, 12-P-160, 14-P-200, 14-P-220, K-700, K-700A, K-500, K-500A |
|
OILWELL |
A-350PT, A-560PT, A-600PT, A-850PT, A-1100P, A-1400PT, A-1700PT |
|
ELLIS WILLIAMS |
W-440-LP, E-447, E-2200, W446, W440 |
|
RUSSIAN Series |
8T-650, UNBT-600, UNBT-950, UNBT-1180L, UNBT-950A, UBT-400, BT-600, UB-590, UNB-600, 8T-310 |
Applications
Offshore Drilling Mud Pump Replacement Parts
Corrosion-resistant power end and fluid end parts built for harsh marine conditions, fully interchangeable with mainstream F-series triplex mud pumps and designed for extended runtime between maintenance.
Deep Well Onshore Drilling Pump Components
Heavy-duty pump parts rated for high-pressure deep drilling operations, including forged crankshafts, crossheads and fluid end modules, delivering consistent performance under continuous heavy load per API standards.
Workover & Land Drilling Aftermarket Pump Parts
Cost-effective OEM-compatible spare parts for routine onshore drilling and workover projects, covering common wear parts of power end, fluid end and structural assemblies to cut maintenance costs.
Need Mud Pump Parts Or Equipment?
Send us your drawing, model number or requirements.Our engineers will reply within 24 hours.
Related Products
