Precision Machined Low Friction Spiral Oil Channel CNC Machine Tool Bearing Bushing
Performance Specifications
| Performance Index |
Unit |
Data |
| Hardness |
HRC |
58-62 |
| Max Load |
N/mm² |
250 |
| Max Linear Velocity |
m/s |
0.1 |
| Max PV Value |
N/mm².m/s |
1.5 |
| Working Temperature Limit |
ºC |
-100 to +350 |
| Linear Expansion Coefficient |
10⁻⁵/ºC |
1.1 |
The SN-H steel bushing features an inner surface processed with various types of oil grooves, enhancing surface hardness and wear resistance after heat treatment. This design makes it ideal for heavy-duty joint parts in construction machinery applications including excavators, rotary drilling rigs, large loaders, wall grab systems, and similar equipment.
Our steel bushing bearings are manufactured from premium materials including 45#, 40Cr, 20CrMo, and GCr15 steel. Every production process—from raw materials to finished products—undergoes strict quality control to ensure exceptional product performance. The result is bushings with superior wear resistance, high surface hardness, and excellent internal toughness.
Company Profile
Jinan Sennai Intelligent Technology Co., Ltd. is an integrated enterprise specializing in the research, production, sales, and service of self-lubricating bearings and construction machinery pins and bushings. With over 20 years of industry experience and established global sales channels, we provide support services to numerous renowned construction machinery and equipment manufacturers worldwide.
Our company offers comprehensive OEM/ODM services to nearly 100 trading companies annually. Operating from a 33,000 square meter facility, we maintain more than 260 sets of advanced production equipment including finishing rolling pipe production lines, forging production lines, CNC automatic processing production lines, complete 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 requirements. We refund sample costs when order quantities meet our minimum requirements.
How is the warranty of the products quality control?
We implement rigorous quality control throughout the entire manufacturing process, from initial production to final inspection, with the goal of delivering 100% error-free products to our customers.
How to get an accurate quotation?
For precise quotations, please provide: Technical drawings, photos, or product samples; Detailed product dimensions; Material specifications; Surface treatment requirements; Estimated purchase quantities.
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