SF-1D Oil-Free Plain Bearing Steel Backed PTFE Lined Sleeve for Hydraulic Cylinder & Valve
Product Details
| Static Load Capacity: | 250 N/mm² | Dynamic Load Capacity: | 140 N/mm² |
|---|---|---|---|
| Friction Coefficient (μ): | Dry: 0.04 ~ 0.20; Hydraulic Oil Lubrication: 0.02 ~ 0.08 | Operating Temperature Range: | -40℃ ~ +160℃ |
| Max Sliding Speed: | Dry: 2.5 M/s; Oil Lubrication: 6 M/s | Max PV Value (Dry Friction): | 3.2 N/mm²·m/s |
| Max PV Value (Hydraulic Oil Lubrication): | 55 N/mm²·m/s | Thermal Conductivity: | 42 W/(m·K) |
| Linear Expansion Coefficient: | 11×10⁻⁶ /K | ||
| Highlight |
ptfe self lubricating bearings,ptfe self lubricating composite bearings,steel backed self lubricating bearings |
||
Product Description
1. Material Structure
SF-1D is a three-layer composite self-lubricating bushing developed for hydraulic system working conditions, lead-free formulation.
Backing: Low carbon steel base with anti-corrosion electroplating
Middle layer: Porous sintered bronze powder layer (0.2~0.3 mm), excellent heat transfer
Surface layer: Modified PTFE composite film (0.01~0.03 mm), optimized for hydraulic oil medium
2. Material & Performance Features
Hydraulic Oil Medium Adaptability: Specially modified PTFE surface layer, stable performance when immersed in various hydraulic oils, resistant to oil swelling and aging.
High Pressure & Impact Resistance: Steel backing plus bronze sintered layer, withstands alternating pressure impact inside hydraulic cylinders, good anti-fatigue property.
Low Wear & Anti-Seizure: Forms stable boundary lubricating film under hydraulic oil environment, reduces shaft wear even with fluctuating pressure.
Dimensional Stability & Sealing Compatibility: Low thermal expansion, matches hydraulic seal assembly requirements, less risk of jamming.
Lead-Free & RoHS Compliant: Environment-friendly formula for hydraulic components export.
3. Application Scenarios
Dedicated for hydraulic equipment. Widely applied in hydraulic cylinder guide bushes, hydraulic motors, hydraulic valves, swing cylinders, construction machinery hydraulic assemblies, agricultural machinery hydraulic sliding parts.
Product Highlights
1. Material Structure SF-1D is a three-layer composite self-lubricating bushing developed for hydraulic system working conditions, lead-free formulation. Backing: Low carbon steel base with anti-corrosion electroplatingMiddle layer: Porous sintered bronze powder layer (0.2~0.3 mm), excellent heat ...
High Load Self Lubricating Bronze Bearing Graphite Plugged Brass Sleeve Anti-Friction Copper Bush for Construction Machinery
Graphite Embedded Bronze Bushing, Self Lubricating Brass Bearing Sleeve, Oil-Free Copper Bush for Mold, Construction Machinery & Hydraulic Cylinder Short Description (Top Bullet Points) ✅ Self-lubricating graphite inlay design, no continuous oil supply required ✅ High strength brass alloy substrate, ...
Round Flange Graphite Bronze Bushing Self Lubricating Oil Free Bearing, High Strength Brass Sliding Bush for Automation Machinery Mold
Product Overview Round flange graphite bronze bushing (MPTZ / OFR01 series) is a self-lubricating sliding bearing made of high-strength brass alloy, with solid graphite plugs embedded on the bearing surface. The flange design with mounting holes enables fast installation and accurate positioning. ...
Self Lubricating Flanged Bronze Bushing JDB, Graphite Inlaid Flange Copper Bearing, Wear Resistant Oil Free Sleeve for Automation Equipment
Product Overview Our JDB flanged graphite plugged bronze bushing (also known as flange self-lubricating copper sleeve) is manufactured from high-strength high-lead bronze / high strength brass alloy, with solid graphite plugs embedded evenly on the sliding surface. It works without oil refueling, ...
High Load Flanged Self-Lubricating Copper Bushing, JFB Flange Graphite Embedded Bronze Bushing, Oil Free Sliding Bearing for Construction Machinery
Product Overview This flanged graphite bronze bushing (JFB / MPFZ series) is a solid self-lubricating sliding bearing made of high-strength brass alloy with embedded solid graphite lubricant dots. The flange shoulder provides axial positioning, simplifies installation and prevents axial displacement...
Please use our online inquiry contact form below if you have any questions, our team will get back to you as soon as possible.
