Precision Engineered Wear Resistant Spiral Oil Channel Mining Machinery Bearing Bushing
Performance Specifications
| Performance Index |
Data |
| Hardness |
HRC 58-62 |
| Max Load |
250 N/mm² |
| Max Linear Velocity |
0.1 m/s |
| Max PV Value |
1.5 N/mm².m/s |
| Working Temperature Limit |
-100 to +350 ºC |
| Linear Expansion Coefficient |
1.1 × 10⁻⁵/ºC |
The SN-H steel bushing features various types of oil grooves on the inner surface, enhancing surface hardness and wear resistance after heat treatment. This makes it ideal for heavy-duty joint components in construction machinery including excavators, rotary drilling rigs, large loaders, and wall grab systems.
Our steel bushing bearings are manufactured from premium materials including 45#, 40Cr, 20CrMo, and GCr15. Every production stage—from raw materials to finished products—undergoes strict quality control to ensure superior performance. The resulting bushings offer exceptional wear resistance, high surface hardness, and robust 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 global sales channels, we provide support services to renowned construction machinery and equipment manufacturers worldwide and deliver OEM/ODM services to nearly 100 trading companies annually.
Our 33,000 square meter facility houses more than 260 sets of advanced production equipment, including finishing rolling pipe production lines, forging production lines, CNC automatic processing production lines, comprehensive heat treatment equipment, high-precision grinding machinery, and physical/chemical analysis and detection systems.
Exhibition & Events
Packaging & Shipping
Frequently Asked Questions
How long can I get 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 requirements.
How is the warranty of the products quality control?
We implement rigorous quality control throughout the entire manufacturing process, aiming for 100% error-free production and consistent product excellence.
How to get an accurate quotation?
Please provide drawings, photos, or samples of products with detailed dimensions, material specifications, surface treatment requirements, and estimated purchase quantities for an accurate quotation.
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