Tungsten Carbide Spiral Grooved Bushings for Oil & Gas

Tungsten Carbide Spiral Grooved Bushings for Oil & Gas About

Product Overview

Our Tungsten Carbide (Cemented Carbide) Spiral Grooved Bushings are precision-engineered high-performance components designed for demanding oil and gas applications. These bushings serve as critical rotating support, aligning, anti-thrust and sealing components for shafts in motors, centrifugal pumps, protectors, and separators.

The bushing features a spiral groove structure on its outer surface that significantly reduces friction, optimizes lubrication distribution, and enhances heat dissipation. Made from premium tungsten carbide (cemented carbide) , these bushings offer exceptional wear resistance, corrosion resistance, and thermal stability, making them ideal for high-pressure, high-temperature, and highly abrasive downhole environments.

 

Key Features

1)    External spiral groove structure - Reduces friction coefficient by up to 30%; ensures even lubricant distribution and effective heat dissipation

2)    Premium tungsten carbide construction - Ultra-high hardness (HRA 89-93); up to 100 times more wear-resistant than tool steel

3)    Superior corrosion resistance    Withstands HS, CO, chlorides, acids, and alkalis; ideal for sour service and corrosive drilling fluids

4)    Excellent thermal stability -  Maintains hardness above HRA85 at 800C for long-term service

5)    Precision outer diameter - Polished surface with tight tolerances for precise rotating fit

6)    Extended service life - Lasts 10-30 times longer than bronze, engineering plastics, or hardened steel bushings

7)    High strength and impact resistance - Withstands mechanical shock and vibration from rotating equipment and downhole tools

8)    Customizable groove configurations - Spiral or straight lubrication grooves available per OEM drawings 

 

Technical Specifications

Parameter	Specification
Product Type	Spiral Grooved Tungsten Carbide Bushing
Material	Tungsten Carbide (Cemented Carbide)
Groove Type	External Spiral Grooves (lubrication/heat dissipation)
Surface Finish (OD)	Polished (Ra < 0.1-0.4)
Surface Finish (ID)	ground with straight grooves (for assembly/fixation)
Dimensional Tolerance	0.01 mm to 0.02 mm
Hardness Range	HRA 8993 (grade dependent)
OD Range	10mm 150mm
ID Tolerance	0.01 mm
Length Range	10mm 200mm
HS Code	84819090

  

Tungsten Carbide (Cemented Carbide) Grade Options

We offer our Spiral Grooved Bushings in a range of premium tungsten carbide (cemented carbide) grades to suit specific service conditions:

Grade	ISO Grade	Density (g/cm)	Hardness (HRA)	TRS (N/mm)	Recommended Application
YG6	K20	14.8-15.0	89.5	1,550	General oil and gas service; balanced wear resistance
YG8	K30	14.6-14.8	89.0	1,700	Higher toughness; pumps and drilling equipment
YG13	K40	13.1-14.3	88.0	2,400	High impact and shock resistance
YG15	K40	13.9-14.2	87.0	2,500	Extreme impact and heavy-load applications
YN6	K20	14.7-14.9	89.0	1,500	Enhanced corrosion resistance; sour service
YN8	K30	14.5-14.7	88.0	1,650	High corrosion resistance; HS/CO environments

Recommendation YG6/YG8 for general oilfield applications; YG13/YG15 for high-impact, heavy-load conditions; YN6/YN8 for sour service and highly corrosive environments.

 

Design Features

 

Spiral Groove Structure (External Spiral Grooves)

The specially designed spiral oil groove structure can reduce the friction coefficient by up to 30%. The spiral grooves serve multiple functions:

        Lubricant distribution: Evenly distributes lubricating oil across the bearing surface, creating a thin film between the bushing and rotating shaft to prevent direct metal-to-carbide contact

        Heat dissipation: Effectively carries away frictional heat

        Wear particle removal: Flushes away wear debris and contaminants

        Extended service life: Reduces operating temperatures and friction-related wear

 

Polished Outer Diameter (OD)

The outer diameter is precision-polished to achieve a smooth surface finish (Ra < 0.1-0.4), ensuring low friction and precise fit with rotating components.

 

Ground Inner Diameter (ID) with Straight Grooves

The inner diameter features a controlled rough ground or semi-finish ground finish with straight grooves, designed specifically for assembly and fixation: 

• Accommodate assembly tolerances: Provides appropriate friction during press-fit installation to prevent rotation
• Contain assembly lubricants: Holds lubricant to facilitate smooth installation without seizing
• Stress relief: Allows micro-deformation during interference fit assembly, preventing cracking of the carbide bushing
• Anti-rotation feature: Straight grooves may engage with locking elements (e.g., keys or pins) to prevent relative rotation between the bushing and the housing

Applications

Our tungsten carbide (cemented carbide) spiral grooved bushings are designed for use in the following oil and gas applications: 

•         Electric Submersible Pumps (ESP) Rotating support, aligning, anti-thrust and sealing of motor shafts, protectors, and separators
•         Centrifugal Pumps & Compressors Shaft support and sealing in high-speed, high-pressure environments
•         Mud Pumps & Drilling Equipment Guide shafts and rotating components requiring long-lasting wear protection
•         Downhole Tools & Mud Motors  Protective sleeves and guide elements for shafts operating under abrasive conditions
•         Wellhead Assemblies Wear-resistant components for surface production equipment
•         Turbines & Hydraulic Systems Bearing and sealing components in high-speed rotating equipment
•         HPHT Wells Components requiring thermal stability and corrosion resistance at elevated temperatures and pressures

 

Why Choose Our Tungsten Carbide Spiral Grooved Bushings?

Spiral Groove for Reduced Friction and Extended Life

The spiral oil groove structure reduces the friction coefficient by up to 30%, ensuring even lubricant distribution, effective heat dissipation, and extended service life.

Superior Materials for Extreme Conditions

Manufactured from premium tungsten carbide (cemented carbide) with hardness up to HRA93, our bushings deliver exceptional resistance to abrasive wear, erosion, and corrosion lasting 1030 times longer than bronze, engineering plastics, or hardened steel bushings.

Precision Engineering for OEM Fit

Each bushing is precision-machined to tight tolerances (0.002 mm to 0.005 mm) with polished surfaces, ensuring exact interchangeability and consistent performance.

Custom Manufacturing Available

We supply custom bushings tailored to your specific drawings, samples, and functional requirements including custom groove patterns (spiral or straight), dimensions, and grades.

ISO 9001:2015 Certified

Our factory operates under a certified quality management system. Full material traceability (3.1/3.2 certificates) available upon request.

 

Quality Assurance

1)    ISO 9001:2015 Certified - Certified quality management system

2)    Material Certificate  - 3.1/3.2 certificates, full traceability

3)    Dimensional Inspection - Precision measurement of OD, ID, length, and groove geometry

4)    Hardness Testing -  Verification per grade specification

5)    Surface Finish Inspection -  Quality control of polished OD and groove geometry

6)    Concentricity & CMM Verification - Multi-point CMM inspection for downhole assembly fit

 

Ordering Information

Please specify the following for an accurate quotation:

 

•         Material Grade: YG6 / YG8 / YG13 / YG15 / YN6 / YN8
•         Outer Diameter (OD): Specify (provide drawings or specifications)
•         Inner Diameter (ID): Specify (provide drawings or specifications)
•         Overall Length: Specify (provide drawings or specifications)
•         Groove Specification: Spiral groove pattern, pitch, and dimensions
•         Surface Finish: Polished OD (Standard) / Custom finish
•         Quantity & Destination Port

Need help selecting the right grade or groove configuration? Contact our team for recommendations based on your specific operating conditions and equipment requirements.

 

Packaging & Shipping 
Packaging: Standard export carton / wooden case (customized packaging available upon request) 
Shipping: Worldwide delivery by express courier (DHL/FedEx/UPS), by air or by sea. 
Incoterms: EXW, FOB, CIF flexible terms available

 

Exceptional Durability for Critical Operations

Our spiral grooved bushings are designed to endure the harshest oil & gas environments. The tungsten carbide composition delivers formidable resistance to abrasive wear and corrosive fluids, ensuring reliability during continuous operation. By opting for our bushings, operators can expect minimized downtime and sustained performance across extended maintenance intervals.


Precision-Engineered Design

The spiral groove architecture enhances lubricant distribution, reducing friction and improving overall efficiency within pumping systems. Each bushing is meticulously engineered to meet stringent quality standards, supporting optimal alignment and rotation for electric submersible pumps, mud pumps, and drilling equipment.