Thrust washers, specifically those with metric size DP4 plain bearings, are crucial components in many mechanical systems. These washers are designed to provide a smooth, reliable, and low-friction interface between two moving surfaces that are in a thrusting or axial loading condition.

The DP4 designation refers to the material and quality grade of the plain bearing, ensuring that it meets certain standards for hardness, wear resistance, and dimensional accuracy. The metric size indicates that the thrust washer follows the metric system of measurement, which is widely used in engineering and manufacturing.

Thrust washers are typically made from high-quality materials such as bronze, steel, or polymers, and they are precision-engineered to ensure they fit precisely within the mechanical system. Their purpose is to reduce friction, wear, and heat generation between moving surfaces, thereby extending the lifespan of the overall system.

In applications where lubrication may not be feasible or desired, plain bearings like the DP4 thrust washer are especially useful. They rely on the inherent lubricity of the material and the precision fitment to achieve smooth operation.

Common applications for thrust washers with metric size DP4 plain bearings include automotive transmissions, industrial machinery, and other precision equipment where reliable thrust transmission is crucial. By selecting the appropriate thrust washer, you can ensure that your mechanical system operates smoothly, efficiently, and with minimal wear and tear.

DP4 thrust washers - metric dp4 material properties, 

DP4 Thrust Washers - material properties. Other dimensions available on request. WC08DP4. WC10DP4. WC12DP4. WC14DP4. WC16DP4.

Part No. WC60DP4, WC08DP4, WC10DP4, WC12DP4, WC14DP4, WC16DP4, WC18DP4, WC20DP4, WC22DP4, WC24DP4, WC25DP4, WC30DP4, WC35DP4

 

DP4 WASHER SIZE CHART FIND YOUR PART NO

 

Part No.	Di (mm)	Do (mm)	ST (mm)	dD (mm)	dP (mm)	Ha max. (mm)	Ha min. (mm)
WC08DP4	10	20	1.5	0	0	1.2	0.95
WC10DP4	12	24	1.5	1.75	18	1.2	0.95
WC12DP4	14	26	1.5	2.25	20	1.2	0.95
WC14DP4	16	30	1.5	2.25	22	1.2	0.95
WC16DP4	18	32	1.5	2.25	25	1.2	0.95
WC18DP4	20	36	1.5	3.25	28	1.2	0.95
WC20DP4	22	38	1.5	3.25	30	1.2	0.95
WC22DP4	24	42	1.5	3.25	33	1.2	0.95
WC24DP4	26	44	1.5	3.25	35	1.2	0.95
WC25DP4	28	48	1.5	4.25	38	1.2	0.95
WC30DP4	32	54	1.5	4.25	43	1.2	0.95
WC35DP4	38	62	1.5	4.25	50	1.2	0.95
WC40DP4	42	66	1.5	4.25	54	1.2	0.95
WC45DP4	48	74	2	4.25	61	1.7	1.45
WC50DP4	52	78	2	4.25	65	1.7	1.45
WC60DP4	62	90	2	4.25	76	1.7	1.45

 

Structure:

 

1. PTFE/ Conductive additive mixture layer thickness 0.02~0.06mm, provides a low friction coefficient and good wear resistance feature. It is an electrical conductive material.

2. Sintered bronze powder thickness 0.20-0.35mm, provides strong mechanical bond and excellent thermal conductivity.

3. Steel backing Provides mechanical strength.

 

Tech. Data

 

Max. load	Static	250N/mm²		Temp. limit		-195°C~+280°C
	Very low speed	140N/mm²		Max.speed	Dry running	2m/s
	Rotating oscillating	60N/mm²			Hydrodynamic operation	>2m/s
Max. PV Dry running	Short-term operation	3.6N/mm²*m/s		Thermal conductivity		42W(m*K)-1
	Continuous operation	1.8N/mm²*m/s		Coefficient of thermal expansion		11*10-6*K-1
Max. PV Hydrodynamic Lubricate		30N/mm²*m/s		Friction coefficient	Dry running	0.08~0.20
					Hydrodynamic operation	0.03~0.08