What materials are used for the roller bushing?

The material is high-strength alloy steel, specifically 40Cr, 42CrMo, or 20CrMnTi.

Is customization available for this product?

Yes, customization is available for weight, color, dimensions, and volume based on model or package size.

Square Drive Roller Bushing for Oil Drilling

Name: Square Drive Roller Bushing for Oil Drilling
Brand: Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.
SKU: 2152480282

Shandong, ChinaQingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

US$450.00

1 Piece

Product specifications

17½

20½

27½

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

Manufacturing Process

Forging

Surface Treatment

Galvanized

Operation Pressure

Rated Load Per API Spec 7K

Material

40cr / 42CrMo / 20crmnti

Weight

Customized Based on Model

Color

Black Oxide Finish

Dimensions

Standard API Dimensions

Volume

Calculated Based on Package Size

Transport Package

Moisture-Proof Film + Honeycomb Carton

Specification

17.5", 20.5", 27.5", 37.5", 49.5"

Trademark

HNA

Origin

China

HS Code

8431431000

Production Capacity

800-1000 Sets/ Year

Key features

API Spec 7K Compliance: Designed and manufactured strictly in accordance with API Spec 7K standard.

Extended Service Life: Reduces friction with kelly via four rotating rollers to extend service life.

High-Strength Material: Made from 40Cr, 42CrMo, or 20CrMnTi alloy steel for high wear resistance.

Versatile Compatibility: Fits square and hexagonal kellys of various sizes by changing rollers.

Customizable Weight: Weight is customized based on the specific model requirements.

Forged Construction: Manufactured using forging process for stable structure and durability.

1-Year Standard Warranty: Includes 12 months or 2,000 operating hours warranty coverage.

Galvanized Surface Treatment: Features galvanized surface treatment with black oxide and anti-rust oil.

Company profile

Years of Export ExperienceFast DeliveryQuality AssuranceManagement Certification

Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 23 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤5.33h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad customization, ODM, and OEM capabilities. It holds ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and reports documented quality, corrective-action, and complaint-handling procedures. Its export share is stated at 71%–90%, with 23 years of export experience, inventory capability, and participation in the Offshore Technology Conference. However, it does not provide 3D software design services, has no available SDK, no overseas warehouse, showroom, agent, or branch, and no valid manufacturing-capacity contract with affiliated subcontractors. No new products were launched in the past year, and only two R&D engineers are reported. Financial records are identified for 2021–2023, but the provided information does not contain sufficient financial performance detail to assess credibility. Customer evidence includes OEM service for well-known brands and repeat-buyer preference of 50%–80%, but no Fortune 500 cooperation.

Supplier typeThe supplier explicitly describes itself as a professional technical supplier and emphasizes learning, innovation, superior products, and technical support. This supports classification as a professional technical supplier rather than a purely trading-oriented entity.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications in both its sustainability and management-system information. These stated certifications provide explicit evidence of formal quality, occupational health and safety, and environmental management systems.

After-Sales capabilityThe supplier states that it provides pre-sales and after-sales technical support, while documented procedures and records exist for corrective and preventive actions and customer complaints. These statements support an established after-sales and issue-resolution process.

R&D capabilityThe supplier has two R&D engineers and offers ODM services, but it does not provide an SDK, did not launch new products in the past year, and does not offer 3D software design services. The evidence shows some development capability but also explicit limitations in recent innovation output and technical-service scope.

Production capacityThe supplier reports in-stock service capability, 23 years of export activity, an export share of 71%–90%, and proximity to Qingdao Port. However, it has no valid manufacturing-capacity contract with affiliated subcontractors and lacks overseas warehouses, branches, and agents, so production and international fulfillment capability cannot be rated as clearly strong overall.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad customization capability, although 3D software design services are not provided.

Client casesThe supplier reports participation in the Offshore Technology Conference, OEM service for well-known brands, and repeat-buyer preference of 50%–80%. However, it reports no cooperation with Fortune 500 companies and provides no specific customer names or case details, so the evidence is positive but limited.