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.

The Ultimate Guide to Graphite Plugged Bronze Plates for Water Intake Gates

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

Metal-Polymer Plain Bearings Grease Lubricated
Metal-Polymer Plain Bearings Grease Lubricated
Bronze Bearings made of CuSn8 with Lubrication Indents
Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents
Cast Bronze Bushings with Solid Lubricant Inserts
Cast Bronze Bearings with Solid Lubricant Inserts
Bimetal Plain Bearings
Steel + CuPb10Sn10 with indents
Steel Bronze Bushing
Steel Backing and Bronze Overlay
Compare prices and delivery times, then place your order directly online or request a quotation.

lubrication-free Bearing bushing products

Self-lubricating Bushing For High Performance And Low Maintenance