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Heavy Duty Construction Machinery Low Maintenance Excavator Bucket Bushing
Performance Specifications
Performance Index
Unit
Value
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 inner surface of SN-H steel bushing is processed with various types of oil grooves, which improves surface hardness and wear resistance after heat treatment. This makes it suitable for heavy-duty joint parts of construction machinery including excavators, rotary drilling rigs, large loaders, wall grabs, and similar equipment.
Our steel bushing bearings are manufactured from high-quality materials including 45#, 40Cr, 20CrMo, and GCr15. Every production process—from raw materials to finished products—is strictly controlled to ensure superior quality. The resulting bushings feature high wear resistance, exceptional surface hardness, and strong internal toughness.
Main Products
Company Profile
Jinan Sennai Intelligent Technology Co., Ltd. is an integrated enterprise specializing in the production of self-lubricating bearings and construction machinery pins and bushings, combining scientific research, production, sales, and service. With 20 years of industry experience and global sales channels, we provide support services for numerous renowned construction machinery and equipment manufacturers worldwide and offer OEM/ODM services for nearly 100 trading companies annually.
Our company occupies a construction area of 33,000 square meters and operates more than 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 systems.
Exhibition
Packaging & Shipping
Frequently Asked Questions
1. How long can I get some samples for checking and what about the price?
Normally samples will be completed within 1-2 days (automatic machining parts) or 3-5 days (CNC machining parts). The sample cost depends on all specifications including size, material, finish, etc. We will refund the sample cost if your order quantity meets our requirements.
2. How is the warranty of the products quality control?
We maintain stringent quality control from beginning to end, aiming for 100% error-free production and ensuring product reliability.
3. How to get an accurate quotation?
Please provide drawings, photos, or samples of products with detailed sizes, material specifications, surface treatment requirements, and ordinary purchasing quantity for an accurate quotation.
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...
