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The inner surface of SN-H steel bushing is processed with various types of oil grooves, which improves the surface hardness and wear resistance after heat treatment. It is suitable for heavy-duty joint parts of construction machinery such as excavators, rotary drilling rigs, large loaders, wall grab and so on.
Our steel bushing bearings are manufactured from premium materials including 45#, 40Cr, 20CrMo, and GCr15. From raw materials to finished products, each manufacturing process undergoes strict quality control to ensure superior product performance. This results in bushings with exceptional wear resistance, high surface hardness, and strong internal toughness.
Manufacturing Excellence
Company Profile
Jinan Sennai Intelligent Technology Co., Ltd. is an integrated industrial and trade enterprise specializing in the professional production of self-lubricating bearings and construction machinery pins and bushings. With 20 years of industry experience and global sales channels, we provide comprehensive support services for renowned construction machinery and equipment manufacturers worldwide and offer OEM/ODM services for nearly 100 trading companies annually.
Our manufacturing facility spans 33,000 square meters and features over 260 sets of advanced production equipment, including finishing rolling pipe production lines, forging production lines, CNC automatic processing production lines, full-process heat treatment equipment, high-precision grinding equipment, and comprehensive physical/chemical analysis and detection capabilities.
Industry Presence
Packaging & Shipping
Frequently Asked Questions
How long can I get some samples for checking and what about the price?
Samples are typically completed within 1-2 days for automatic machining parts or 3-5 days for CNC machining parts. Sample costs depend on specifications including size, material, and finish. We refund sample costs when order quantities meet our minimum requirements.
How is the warranty of the products quality control?
We maintain rigorous quality control throughout the entire manufacturing process, from raw materials to finished products, aiming for 100% error-free production and consistent product excellence.
How to get an accurate quotation?
Please provide detailed product information including: technical drawings, photos or samples; precise product dimensions; material specifications; surface treatment requirements; and estimated purchase quantities.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Employee Number:
201~300
Ecer Certification：
Verified Supplier
Shandong Sennai Intelligent Technology Co., LTD established in 2006, is a bushing manufacturer provide supporting services for many well-known construction machinery and equipment manufacturers at home and abroad. Mainly produce steel bushings, composite bushings, bimetallic bushings, solid lubricat... Shandong Sennai Intelligent Technology Co., LTD established in 2006, is a bushing manufacturer provide supporting services for many well-known construction machinery and equipment manufacturers at home and abroad. Mainly produce steel bushings, composite bushings, bimetallic bushings, solid lubricat...
