DU

Metal Polymer Dry Bearings

DU

DU, Dry Bearings, Steel backing, With lead / Lead Free

du bearing

● Metal-polymer-composite material

● Steel + porous bronze sinter + PTFE + Pb

● Self-lubricating & Maintenance-free

■ Features

1. DU dry bearings material has very good wear and friction performance over a wide range of loads, speeds and temperature conditions.
2. DU dry bearings material also performs well with lubrication.

■ Physical & Mechanical Properties

Items	Value	Unit
Thermal Conductivity λ	40	W/mK
Maximum Operating Temperature Tmax	280	°C
Minimum Operating Temperature Tmin	-200	°C
Compressive Yield Strength σc	350	N/mm2
Maximum Static Load Psta,max	250	N/mm2
Maximum Dynamic Load Pdyn,max	140	N/mm2
Maximum Sliding Speed V-dry	2.5	m/s
Maximum PV Factor-dry, continuous operation	1.8	N/mm2 * m/s
Maximum PV Factor-dry, intermittent operation	3.5	N/mm2 * m/s
Coefficient of friction f-dry	0.02-0.25
Coefficient of friction f-oil lubricated	0.02-0.12

■ Usage Range

dry	good
oil lubricated	good
grease lubricated	fair
water lubricated	fair
process fluid lubricated	fair

■ Possible Application

Automotive:
McPherson struts and shock absorbers, doors, bonnets and tailgate hinges, steering columns, clutches, gearbox selector fork guides, wiper arms, power steering pumps, pedal bushes, ABS equipment, etc.

Industrial:
Aerospace, agricultural equipment, construction equipment, material handling equipment, forming machines-metal, plastic and rubber, office equipment, medical and scientific equipment, packaging equipment, pneumatic and hydraulic cylinders, pumps and motors, railroad and ramways, textile machinery, valves, etc.

■ Standard Parts Available

Cylindrical Bush

Flanged Bush

Thrust Washer

Flanged Washer

Strip / Plate