Import 4krbm Roller Kelly Bushings — Buy in wholesale FOB from Supplier in China
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4KRBM Roller Kelly Bushings
The 4KRBM Roller Kelly Bushings are forged from alloy steel with heat treatment, designed for rotary tables ranging from 17 1/2 to 49 1/2 inches. They are manufactured to API Spec 7K standards, making them suitable for oil and gas drilling applications where high torque and shock loads are common. These bushings act as critical consumables for maintaining drilling rig uptime, ensuring compatibility with major rotary table brands.
The material composition and heat treatment process provide the necessary durability to withstand extreme operational stresses typical in rotary drilling. Standard industry practice for such bushings includes precision machining to tight tolerances, with typical hardness values between 28-34 HRC for wear resistance. The design often incorporates a tapered bore to match the kelly drive, with standard API thread types for secure fitting.
These bushings are primarily used by oilfield service companies and drilling contractors who require reliable, long-lasting components for their rigs. Buyers typically source them in bulk for ongoing maintenance, with compatibility across various rotary table models being a key consideration. The bushings are essential for reducing downtime and ensuring consistent performance in demanding drilling environments.
| Material | Forged Alloy Steel with Heat Treatment |
| Application | Rotary Tables 17 1/2 to 49 1/2 inches |
| Standard Compliance | API Spec 7K |
| Hardness (typical) | 28-34 HRC |
| Bore Type | Tapered for Kelly Drive |
| Thread Type (standard) | API Thread |
| Primary Use | Oil and Gas Drilling |
| Industry Role | Consumable Part for Rotary Tables |
| Tolerance (typical) | Precision Machined to API Standards |
| Compatibility | Major Rotary Table Brands |
Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. is located in the Economic Development Zone of Rudong County, Jiangsu Province, China. The company specializes in manufacturing oilfield equipment, with a focus on components like roller kelly bushings that meet international standards such as API Spec 7K. Its address places it in a region known for industrial manufacturing, particularly in the petroleum machinery sector.
The supplier’s profile indicates a focus on heavy-duty forged steel products for drilling applications. While the response rate is currently unrecorded, the company’s product offerings are tailored to global oilfield services, providing essential parts for drilling rig maintenance. The listing does not provide additional details on certifications beyond API Spec 7K, so buyers should confirm specific compliance requirements directly with the supplier.
Roller Kelly Bushings for rotary tables 17 1/2 to 49 1/2 inches, API Spec 7K certified for oil and gas drilling applications. These heavy-duty forged steel bushings are engineered to withstand high torque and shock loads encountered in rotary drilling operations. Suitable for import/export trade, compatible with major rotary table brands, and essential consumable parts for maintaining drilling rig uptime in the global oilfield services market. Estimated pricing ranges from $850 - $2,400 per unit depending on rotary table size specification and order volume.
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| Year Established | Recently Joined |
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Sourcing 4KRBM Roller Kelly Bushings from Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. - China Import Guide
Before ordering, verify the exact rotary table size and compatibility with the 4KRBM Roller Kelly Bushings, as misalignments can lead to operational issues. Confirm that the bushings meet API Spec 7K standards, as this is critical for safety and performance in oil and gas drilling. Request documentation, such as material test reports, to ensure the bushings have undergone the required heat treatment and hardness testing.
Logistics for these bushings should account for their weight and dimensions, which are typical for heavy-duty forged steel components. Confirm the supplier’s lead time for bulk orders, as well as the available Incoterms, such as FOB or CIF, to clarify cost and responsibility for shipping. Payment terms should also be discussed, with options like TT or LC commonly used for international transactions.
Quality checks should include visual inspection for surface defects and dimensional verification against API Spec 7K tolerances. Request a certificate of compliance and third-party inspection reports if available. Documentation such as packing lists, commercial invoices, and bills of lading should be reviewed to ensure accuracy before shipment.
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30 suppliersBuy 4krbm Roller Kelly Bushin in Bulk — Verified Supplier in China
When sourcing 4krbm Roller Kelly Bushings for your business, securing the right balance of quality and cost is essential. Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd., a verified supplier based in China, offers this product with key specifications including 4KRBM Roller Kelly Bushing, API Spec 7K Grade E, and 17 1/2 inch to 49 1/2 inch. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $8502,400./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 8483.40, making it a staple in the Bearing sector with strong demand from importing countries worldwide.
4krbm Roller Kelly Bushin Specifications, Trade Terms & Pricing
Importing 4krbm Roller Kelly Bushin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8483.40 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 4krbm Roller Kelly Bushin has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Bearing category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import 4krbm Roller Kelly Bushin — Shipping, Logistics & Customs
Importing 4krbm Roller Kelly Bushin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8483.40 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 4krbm Roller Kelly Bushin
What is the wholesale price of 4krbm Roller Kelly Bushings?
The current listed wholesale price for 4krbm Roller Kelly Bushings from Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. is $8502,400./Unit on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 4krbm Roller Kelly Bushin?
The supplier, Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Unit for 4krbm Roller Kelly Bushin. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 4krbm Roller Kelly Bushings?
For international shipping and customs clearance, 4krbm Roller Kelly Bushings is classified under HS Code 8483.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import 4krbm Roller Kelly Bushin from China?
To import 4krbm Roller Kelly Bushin from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd.. Ensure you have the necessary import licenses for Bearing products in your destination country.
Is Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. a verified supplier?
Yes, Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 4krbm Roller Kelly Bushings?
The key specifications for 4krbm Roller Kelly Bushings supplied by Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. include 4KRBM Roller Kelly Bushing, API Spec 7K Grade E, and 17 1/2 inch to 49 1/2 inch. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of 4krbm Roller Kelly Bushin?
Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. offers 4krbm Roller Kelly Bushin with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 4krbm Roller Kelly Bushin the most?
4krbm Roller Kelly Bushin is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. through our platform.
What certifications does this 4krbm Roller Kelly Bushin supplier hold?
Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. maintains international quality certifications. These ensure that the 4krbm Roller Kelly Bushin meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 4krbm Roller Kelly Bushings on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Jiangsu Rudong Lianfeng Petroleum Machinery Co., Ltd..
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