Carbon Steel Oil-Free Self-Lubricating Bushing 250N/mm² Load Capacity -195°C to +280°C Temperature Range
Price:
Negotiable
MOQ:
50 Sets
Delivery Time:
10 work days
Brand:
KBN
Product Description
Product Overview
Carbon Steel Oil-Free Self-Lubricating Bushings are engineered for dry running applications with exceptional wear resistance. These bushings feature a three-layer construction: low carbon steel backing, sintered bronze medial layer, and PTFE fiber self-lubricating surface.
Material Composition
- PTFE with fibers: 0.01-0.03mm thickness
- Sintered bronze powder: 0.2-0.35mm thickness
- Low carbon steel: 0.7-2.3mm thickness
- Copper or Tin coating: 0.008mm thickness
Note: Actual metallographic structure thickness is negotiable based on application requirements.
Applications & Industries
Widely used in metallurgy, automotive, mining, petroleum, rolling mills, chemical processing, electrical machinery, shipping, printing, plastic machinery, office equipment, fitness facilities, light industry, irrigation systems, hydraulic machinery, and locomotive applications.
Key Features & Benefits
- No oil or minimal lubrication required - ideal for hard-to-lubricate applications
- Excellent wear resistance with low friction coefficient for extended service life
- Wide operating temperature range from -195°C to +280°C
- Superior alignment performance with low noise and zero pollution
- Thin wall construction reduces weight and minimizes mechanical volume
- Transfer film formation protects mating shafts from wear and eliminates nibbling
- Compatible with untreated shafts, reducing processing requirements
- Minimal water/oil absorption with low thermal expansion and stable dimensions
- Corrosion-resistant steel backing with multiple plating options available
Available Types
Technical Specifications
| Parameter | Type | Value |
|---|---|---|
| Max. Loading | Static | 250 N/mm² |
| Max. Loading | Low Speed | 140 N/mm² |
| Rotating Oscillation | 60 N/mm² | |
| Max. PV Limit (Dry) | Short Term Operation | 3.6 N/mm²*m/s |
| Continuous Operation | 1.8 N/mm²*m/s | |
| Temperature Range | -195°C to +280°C | |
| Friction Coefficient | 0.02-0.20 | |
| Max. Speed | Dry Running | 2 m/s |
| Hydrodynamic | >2 m/s | |
| Thermal Conductivity | 42 W/(m*K) | |
| Coefficient of Thermal Expansion | 11×10⁻⁶ W/(m*K) |
Manufacturing Expertise
With over 10 years of specialized experience in oilless bushing manufacturing, we deliver proven reliability and performance that creates mutual benefits for both partners.
Service & Support
Free Samples
Free samples available for orders of 1-10 KGs, with delivery fees covered by customer.
Certification Support
Comprehensive documentation including Test Reports, Certificates of Origin (CO, Form A, Form E), and SGS testing certificates.
Quality Assurance
Rigorous quality control inspections conducted on every batch before shipment authorization.
Documentation Services
Professional document department provides complete shipping and customs documentation promptly after shipment.
Frequently Asked Questions
Are you a trading company or manufacturer?
We are the manufacturer with direct production capabilities.
Can you produce custom sizes and colors?
Yes, we offer complete customization of sizes and colors according to your specifications and samples.
Do you provide samples for testing?
Yes, free samples are available with shipping charges covered by the customer.
What payment terms do you accept?
We accept L/C, T/T, and Western Union payments.
Can we visit your factory?
Factory visits are warmly welcomed with complimentary hotel accommodation and transportation services provided.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Zhengzhou Kebona Industry Co., Ltd
Location
No. 18, Qiliyan East Road, Erqi District, Zhengzhou, 450015, China
Contact Person
Rose Lee