greaseless bearings self lubricating bearing
greaseless bearings self lubricating bearing
High-Performance Self-Lubricating Bronze Bushing Solutions & Technologies. Minimize downtime, extend service life, and reduce costs for dynamic applications.
Self-Lubricating Bearings (No Grease / No Lubrication Required)
Our greaseless bearings offer a reliable, low-maintenance alternative to traditional bearings. Core Definitions:
-
Greaseless = Lifetime lubrication-free (no need for grease or oil)
-
Self-Lubricating = Embedded solid lubricants (PTFE, graphite, MoS₂, oil-impregnated, etc.)
- ⚙️ Superior wear resistance⚙️ Reduced downtime and costs⚙️ Perfect for heavy-duty machineryGet the performance you need without the grease—contact us now!
1. Four Major Greaseless Technologies (Structure & Materials)
| Type | Structure Diagram | Base Material | Lubricant | PV Limit | Temperature Range | Typical Brands |
|---|---|---|---|---|---|---|
| A. Metal + Graphite Plugs | Bronze + Graphite | CuZn25Al6Mn4 (Bronze) | Graphite Plug (25–30% Area) | 1.5 MPa·m/s | -100 to +500°C | JDB / Oilless #500SP |
| B. Steel Back + PTFE Fabric | PTFE-lined composite bush Structure | Steel Back + Sintered Bronze + PTFE + Pb | PTFE Fabric Layer (0.01–0.03mm) | 2.5 MPa·m/s | -200 to +280°C | PTFE / POM / RED PTFE |
Note: Oil-impregnated bearings, though “greaseless,” may lose oil over time, making them unsuitable for temperatures >120°C or vacuum conditions.
2. Greaseless vs Traditional Grease-Lubricated Bearings
Why Greaseless?
| Metric | Greaseless | Traditional Grease-Lubricated |
|---|---|---|
| Grease Replenishment | None | Every 500–2000 hours |
| Pollution Risk | None | Grease attracts dust |
| High Temperature | Up to +500°C | Grease carbonizes (>150°C) |
| 5-Year Cost | Lower (Maintenance-Free) | Higher (Labor + Grease + Downtime) |
3. Greaseless Applications × Complete Solutions
1. Food Filling Lines
-
Part: Star wheel guide bushing, bottle pusher cam
-
Operating Conditions: 5–40°C, water wash, 0.5 m/s
-
Size: Ø30×34×30 mm
-
Lifespan: > 2 years (24/7 operation)
-
Replacement: Grease-lubricated ball bearings → Avoids grease contamination in bottles
2. Cement Kiln Tire (High-Temperature Heavy Load Greaseless)
-
Part: Tire shaft bushing
-
Operating Conditions: 300°C, dust, 120 MPa, 0.2 m/s
-
Recommended: JDB CuZn25Al6 + Graphite
-
Size: Ø250×300×200 mm
-
Lifespan: > 2 years
-
Replacement: Grease pump system → Prevents oil path blockages
3. Injection Molding Machine Clamping (High-Frequency Greaseless)
-
Part: Elbow pin shaft
-
Operating Conditions: 120°C, 3 million cycles, 80 MPa
-
Recommended: Steel back + POM
-
Size: Ø70×85×80 mm
-
Lifespan: > 4 million cycles
-
Replacement: Needle bearings + grease → Prevents grease dry-out and jamming
-
Sales Highlight: Pre-lubricated POM layer, 30% lower startup friction
4. Wind Turbine Blade Pitch (Remote Maintenance-Free Greaseless)
-
Part: Blade pitch drive pin
-
Operating Conditions: -40 to +80°C, vibration, 0.1 m/s
-
Recommended: PEEK
-
Size: Ø100×115×120 mm
-
Lifespan: > 20 years
-
Replacement: Grease-lubricated joint bearings → No grease available at the top of the tower
-
Sales Highlight: Zero maintenance, UV resistance, 50% weight reduction
5. High-Temperature Hot Air Door (Steel Industry Greaseless)
-
Part: Hot air furnace reversing valve shaft
-
Operating Conditions: 400°C, SO₂, slow rotation
-
Recommended: Copper + Graphite
-
Size: Ø80×100×100 mm
-
Lifespan: > 3 years
-
Replacement: Grease-lubricated bearings → Prevents carbonization and jamming
-
Sales Highlight: 600°C tolerance, graphite remains stable at high temperatures
Greaseless Bearings = Self-Lubricating Bearings (No Grease / No Lubrication Required)
Go Greaseless, Go Clean, Go Green!
Keep your operations running smoothly and sustainably with our high-performance greaseless bearings.
🌱 Environmentally friendly
🌱 Less downtime, more uptime
🌱 Perfect for applications where lubrication is not an option
Switch today for a greener, cleaner solution.
Metal Bushing (Lubricated Metal) -Self-Lubricating Bushing Materials
Bushings are specialized, self-lubricating metal components widely utilized across various industries due to their durability and low maintenance requirements. Self-lubricating metal bushings are engineered to function without additional lubrication in numerous applications, thereby minimizing maintenance needs. These bushings are available in various series and configurations, such as flanged bushings and split bearings, to meet specific application requirements.
Metal-Polymer Anti-Friction Plain Bearings
Metal-Polymer Composite Self-lubricating Bushing Material
Steel Back + Porous Bronze Sinter + PTFE

