JESW Oilless Wear Plate

We provide custom manufacturing of finished bronze parts and self-lubricating bronze, precisely based on our clients’ drawings.

graphite plugged bronze wear plate strips with holes JESW Oilless Wear Plate
C62700 nickel aluminum bronze slide plate with graphite plugs self-lubricating bearing

Self lubricating JESW Oilless Wear Plate

What is a JESW Oilless Wear Plate?

A JESW Oilless Wear Plate is a premium, copper-based, solid-lubricant-embedded sliding plate. It is engineered by casting a high-strength brass matrix and meticulously embedding solid lubricants—typically graphite or molybdenum disulfide (MoS₂)—into specific geometric patterns on the friction surface.

Unlike standard bronze bushings or bearings that rely on a continuous hydrodynamic oil film, the JESW wear plate breaks the boundaries of traditional lubrication. It is specifically designed for environments where adding oil is difficult, where oil films cannot be maintained due to heavy loads or slow speeds, or where oil contamination is strictly prohibited.

  • Base Material (Matrix): High-strength brass alloys, specifically ZCuZn25Al6 or CuZn25Al6Fe3Mn3. These alloys provide immense structural integrity, high load-bearing capacity, and excellent resistance to impact and fatigue.
  • Solid Lubricant: High-purity Graphite or Molybdenum Disulfide (MoS₂). These materials are chemically stable, thermally resistant, and possess naturally low shear strength, making them ideal dry lubricants.

Technical Specifications: By the Numbers

To truly understand the capabilities of JESW Oilless Wear Plates, we must look at the hard data. The following table outlines the critical technical parameters that define their performance envelope.
Technical Parameter
Specification / Limit
Dynamic Load Limit
100 N/mm² (approx. 100 MPa)
Base Hardness
HB 210 – 270
Friction Coefficient (μ)
< 0.16
Operating Temperature Range
-195°C to +300°C
Max Sliding Speed (Dry Friction)
0.4 m/s
Max Sliding Speed (Oil Lubrication)
5.0 m/s
Data indicates that JESW plates can handle immense pressure while maintaining a remarkably low friction coefficient, even in the complete absence of liquid oil.
JDBS Oilless Spherical Bearing

Self lubricating Oilless Wear Plate Design

 

Unmatched Product Advantages

Why are engineers increasingly specifying JESW Oilless Wear Plates over traditional solutions? The advantages extend far beyond simple lubrication.

Maintenance-Free Operation

By eliminating the need for external lubrication systems, oil pumps, and manual greasing schedules, these wear plates drastically reduce ongoing maintenance costs and eliminate the risk of catastrophic failure due to “forgotten” lubrication.

Superior Wear Resistance

The high-strength brass matrix boasts a hardness (HB 210-270) that is double that of standard copper sleeves. Consequently, the wear resistance is also doubled, significantly extending the mean time between replacements (MTBR).

Extreme Temperature Adaptability

Traditional oils degrade, vaporize, or freeze at extreme temperatures. JESW plates operate flawlessly across a staggering thermal range. They maintain structural integrity in cryogenic environments down to -195°C and continue to provide effective lubrication in high-heat applications up to +300°C.

Environmental Resilience

These plates are virtually impervious to harsh environmental factors. They exhibit excellent resistance to:
•Corrosion: Unaffected by water washdowns or acidic/chemical exposure.
•Dust and Debris: The solid lubricant film repels abrasive particles, making them ideal for mining and construction.
•Impact and Edge Loading: The robust metal matrix absorbs shocks and vibrations, preventing the cracking often seen in pure carbon or ceramic bearings.

Comparative Analysis: JESW vs. Traditional Bronze Bearings

To highlight the technological leap, let us contrast JESW Oilless Wear Plates with traditional tin bronze bearings.
Feature
Traditional Bronze Bearings
JESW Oilless Wear Plates
Lubrication Requirement
Continuous oil/grease required
Completely self-lubricating (Dry)
Maintenance Cost
High (labor, oil, system upkeep)
Near Zero
Load Capacity
Moderate
Extremely High (100 MPa)
Temperature Limit
Limited by oil breakdown (~150°C)
Up to +300°C
Dust/Debris Tolerance
Poor (oil traps abrasive dust)
Excellent (dry film repels dust)
Shaft Wear
High risk if oil film breaks
Minimal (protected by solid film)

Key Industry Applications and Case Studies

The versatility of JESW Oilless Wear Plates makes them indispensable across a wide spectrum of heavy industries.

Mining and Crushing Equipment

•Applications: Crusher liners, conveyor baffles, excavator bucket pins, and scraper blades.
•The Challenge: High impact loads, severe abrasive dust, and the impossibility of maintaining clean oil films.
•Case Study: A major mining operation replaced traditional crusher liners with JESW plates. The result? The maintenance cycle was extended from 3 months to over 12 months, reducing lubrication costs by 60% and significantly boosting overall plant uptime.

Metallurgical and Steel Production

•Applications: Continuous casting machines, steel rolling equipment, and furnace mechanisms.
•The Challenge: Extreme heat (often exceeding 250°C) and heavy, continuous loads that instantly vaporize standard lubricants.
•The Solution: JESW plates thrive in these conditions, utilizing their 300°C temperature tolerance to ensure smooth operation without the fire hazards associated with liquid oils.

Mold and Die Manufacturing

•Applications: Mold guide systems, clamping guide positions, and automotive stamping dies.
•The Challenge: High precision requirements combined with immense clamping forces.
•The Solution: The high hardness and low friction coefficient of JESW plates ensure precise alignment and prevent galling, even under the massive pressures of injection molding and metal stamping.

Transportation and Heavy Machinery

•Applications: Railway train bogie brackets, marine equipment, and steam turbines.
•The Challenge: Constant vibration, corrosive marine environments, and edge loading.
•The Solution: The excellent shock-absorbing properties of the brass matrix, combined with its corrosion resistance, make JESW plates ideal for stabilizing train carriages and protecting shipboard machinery from saltwater degradation.

JESW Oilless Wear Plate Size Chart

Standard No. W L W1 W2 L1 L2 Standard No. W L W1 W2 L1 L2
JESW-28×75 28 75 － － 45 15 JESW-100×100 100 100 50 25 50 25
JESW-28×100 100 50 25 JESW-100×125 125 75
JESW-28×150 150 100 JESW-100×150 150 100
JESW-38×75 38 75 45 15 JESW-100×200 200 150
JESW-38×100 100 50 25 JESW-100×250 250 200
JESW-38×150 150 100 JESW-100×300 300 200 50
JESW-48×75 48 75 45 15 JESW-125×125 125 125 37.5 75 25
JESW-48×100 100 50 25 JESW-125×150 150 100
JESW-48×125 125 75 JESW-125×200 200 150
JESW-48×150 150 100 JESW-125×250 250 200
JESW-48×200 200 150 JESW-125×300 300 200 50
JESW-58×75 58 75 45 15 JESW-125×350 350 200 75
JESW-58×100 100 50 25 JESW-150×150 150 150 100 25 100 25
JESW-58×150 150 100 JESW-150×200 200 150
JESW-75×75 75 75 25 JESW-150×250 250 200
JESW-75×100 100 50
JESW-75×125 125 75
JESW-75×150 150 100
JESW-75×200 200 150
JESW Oilless Wear Plates are available in a comprehensive range of standard metric sizes (e.g., the FJESW series), covering various widths (W), lengths (L), and thicknesses to suit standard industrial designs. Common models include JESW-28×75, JESW-38×100, and JESW-48×150.
However, industrial challenges are rarely one-size-fits-all. Manufacturers offer extensive customization services, including:
•Non-standard dimensions and geometries.
•Custom machining of oil grooves and positioning holes based on client CAD drawings.
•Tailored solid lubricant formulations for highly specific chemical or thermal environments.
Custom CNC Oil-free Bearing Solutions

Custom Oil-Less Bearing Bushing

Self-lubricating bearing selection and drawing confirmation