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Home / Product / JDB Solid-lubricating Bearing / JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing
Wholesale JTW Oilless Thrust Washer
JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing
  • JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing
  • JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing
  • JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing

JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing

Product Description:

JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing is designed for harsh working environments that require oil-free lubrication. It uses graphite solid lubricant and copper alloy materials to ensure wear resistance and stability under high load, low speed or no lubrication conditions. Graphite solid lubrication technology can effectively reduce friction and extend service life, and is particularly suitable for applications in heavy machinery, aerospace, metallurgy, mining and other industries. The copper alloy substrate of JTW bearings has corrosion resistance and thermal conductivity. The oil-free lubrication design reduces the maintenance requirements of traditional lubricants.

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Thrust Washer Series | Oilless Graphite Lubrication

JTW Solid Lubricant Graphite Oilless Bronze Thrust Washer Bearing

Axial Load: 80 N/mm² Max
Speed: 0.35 m/s Continuous
Material: CuSn8 Bronze
1
Product Architecture
The JTW thrust washer is a flat annular bearing component designed to manage axial thrust loads in rotating or oscillating assemblies. Graphite solid lubricant plugs are inserted radially into the bronze substrate at equal angular spacing. The washer face provides a low friction interface between rotating shaft shoulders and stationary housings. This oilless configuration eliminates grease channels and lubrication ports, reducing mechanical complexity in thrust load applications.
2
Graphite Distribution Pattern
Lubricant inserts occupy 18 to 22 percent of the washer face area. Graphite grade EG-98 is mechanically retained through dovetail grooves machined into the bronze surface. As the washer rotates against a hardened steel counterface, graphite transfers to the mating surface forming a continuous dry film. Insert depth ranges from 1.5mm to 3.0mm depending on washer thickness, ensuring lubrication availability throughout the wear life.
3
Thrust Face Geometry
Standard washers feature a flat parallel face with surface roughness Ra 0.8 micrometers. Edge chamfers of 0.5mm x 45 degrees prevent burr formation during handling. Oil grooves or spiral patterns are not required due to the solid lubricant mechanism. Washer flatness maintained within 0.02mm across the entire diameter for uniform load distribution.

Technical Specifications

Material Grade
CuSn8 (CW453K)
EN 1982 compliant
Hardness Range
140-200 HB
Brinell scale
Compressive Strength
420 N/mm²
At 1 percent deformation
Thermal Conductivity
52 W/m·K
Heat dissipation
Friction Coefficient
0.08 - 0.14
Against hardened steel
Wear Rate Limit
0.04 mm / 1000 hrs
At rated axial load
Max PV Value
1.0 N/mm²·m/s
Dry operation
Temperature Range
-50°C to 160°C
Continuous duty

Primary Axial Load Applications

Gearbox thrust washers
Turntable bearings
Hydraulic motor end plates
Screw compressor shims
Clutch release mechanisms
Valve stem thrust faces
Propeller shaft thrust collars
Press brake pivot points
Installation Parameters
  • Housing counterface hardness: 55 to 62 HRC recommended
  • Counterface surface finish: Ra 0.2 to 0.4 micrometers
  • Washer seat flatness: 0.01mm per 50mm diameter
  • Running in period: 30 minutes at 50 percent rated load
  • Axial clearance after installation: 0.05 to 0.15mm
  • No external lubricant required during or after installation
Performance Limitations
  • Not suitable for edge loading beyond 5 degrees misalignment
  • Avoid interrupted oil supply if external lubricant is present
  • Maximum oscillating angle: 60 degrees peak to peak
  • Graphite dust may accumulate in enclosed gearboxes
  • Not certified for potable water or food contact applications

Standard Metric Thrust Washer Dimensions

ISO 3547-3 compliant series
Metric Series Dimensions in mm
Inner Diameter ID Outer Diameter OD Thickness T Standard Tolerance
10 24 2.0, 2.5, 3.0 ID H9 / OD h9
12 28 2.0, 2.5, 3.0, 4.0 ID H9 / OD h9
15 32 2.5, 3.0, 4.0 ID H9 / OD h9
18 38 2.5, 3.0, 4.0, 5.0 ID H9 / OD h9
20 42 3.0, 4.0, 5.0 ID H9 / OD h9
25 50 3.0, 4.0, 5.0, 6.0 ID H9 / OD h9
30 58 4.0, 5.0, 6.0, 8.0 ID H9 / OD h9
35 65 4.0, 5.0, 6.0, 8.0 ID H9 / OD h9
40 72 5.0, 6.0, 8.0, 10.0 ID H9 / OD h9
50 85 5.0, 6.0, 8.0, 10.0 ID H9 / OD h9
60 98 6.0, 8.0, 10.0, 12.0 ID H9 / OD h9
70 110 8.0, 10.0, 12.0 ID H9 / OD h9
80 125 8.0, 10.0, 12.0, 15.0 ID H9 / OD h9
100 150 10.0, 12.0, 15.0, 20.0 ID H9 / OD h9
Non standard inner diameters from 8mm to 200mm available. Segmented thrust washers for diameters above 150mm can be supplied as multiple arc segments.
FAQ
Common Technical Questions
JTW thrust washer specific inquiries from design and maintenance engineers.
Can the JTW washer be used with a grooved counterface
Yes. Grooved counterfaces do not impede performance. Graphite transfer film bridges minor surface irregularities after the initial run in period of approximately 30 minutes.
What happens when the graphite inserts wear completely
When graphite depth decreases below 0.5mm, the bronze substrate contacts the counterface directly. Friction coefficient rises to 0.25 to 0.35. Replace washer before complete graphite depletion to prevent counterface scoring.
Are multiple washers stackable for higher load capacity
Stacking multiple washers is not recommended. Load distribution between stacked washers becomes uneven. Use a single washer with larger surface area or higher grade material for increased thrust capacity.
Storage requirements for JTW washers
Store in dry environment between 5°C and 35°C. Relative humidity below 65 percent. Avoid exposure to ozone, UV radiation, and chemical vapors. Shelf life is 5 years under proper storage conditions.
Wear Monitoring
Measure thickness at four points 90 degrees apart. Replace when thickness reduction exceeds 0.3mm or when graphite area on surface falls below 10 percent.
Material Traceability
Each production batch includes chemical analysis certificate per EN 10204 3.1. Hardness test reports available upon request.
Custom Modifications
Oil holes, locating tabs, split configurations, and non circular profiles available for volume orders. Minimum quantity applies.

Standard No. I.D.фd 0.D.фD Thickness Screw Holes
P.C.D Number of Holes Flat Head Screw d1
JTW-0603 6.2  +0.2
+0.1










+0.3
+0.1		 25  3  0
-0.1		 15  2  M3 3.5 
JTW-0803 8.2  28  18 
JTW-1003 10.2  30  20 
JTW-1203 12.2  40  28 
JTW-1203N 12.2  Without flat head screw hole
JTW-1303 13.2  28  2  M3 3.5 
JTW-1403 14.2 
JTW-1503 15.2  50  35 
JTW-1603 16.2 
JTW-1603N 16.2  Without flat head screw hole
JTW-1803 18.2  35  2  M3 3.5 
JTW-2005 20.2  5  M5 6 
JTW-2505 25.2  55  40 
JTW-3005 30.2  60  45 
JTW-3505 35.2  70  50 
JTW-4007 40.2  80  7  60  M6 7 
JTW-4507 45.2  90  70 
JTW-5008 50.3  100  8  75  4 
JTW-5508 55.3  110  85 
JTW-6008 60.3  120  90  M8 9 
JTW-6508 65.3  125  95 
JTW-7010 70.3  130  10  100 
JTW-7510 75.3  140  110 
JTW-8010 80.3  150  120 
JTW-9010 90.5  170  140  M10 11 
JTW-10010 100.5  190  160 
JTW-12010 120.5  200  175 
Our Product //
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Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd. is China JTW Oilless Thrust Washer Suppliers and Wholesale JTW Oilless Thrust Washer Company, we are a manufacturer specializing in producing various self-lubricating copper alloy products using centrifugal casting, continuous casting, metal mold casting, and other processes. Its main products include brass, aluminum bronze, tin bronze, and others produced according to national standard grades. It processes and produces various solid inlaid self-lubricating bearing products on this basis . At the same time, it uses sintering technology to produce bimetallic products and many other types of products. Since its establishment nearly 10 years ago, the company has focused on the research development, and production of various new self-lubricating bearings.

In the process of product production, our company has always insisted on independent casting production of raw materials to ensure the quality of products from the source; during the casting process, the whole process is monitored, and the finished product is tested by spectrometer three times before, in and after the furnace to confirm the material composition of the product. The national testing agency is regularly commissioned to test the material composition and mechanical properties of the product, and authoritative test reports can be provided to customers in need; the company implements integrated production from material to finished product processing and has more than 80 sets of advanced CNC machine tools, CNC lathes, machining centers, and other major equipment. The strong production capacity ensures that the material production is organized for customers for the first time, shortening the production cycle.
  • 0+
    Establishment

    Founded in 2014, Shuangnuo has 10 years of experience in the industry.

  • 0+
    Advanced Equipment

    Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.

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    Happy Clients

    There are more than 5,000 cooperative customers around the world.

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