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DU Bearing

Technical Date

•Wrapped composite sliding bearing

•Maintenance-free dry sliding bearing

•DIN 1494 / ISO 3547

•Also available: lead free!

•All special designs are produced at short notice!

•Cylindr. and flanged bushings, thrust washer, strips are stand. fabrication.

•Punchings and moldings are produced on customer requirement.



Excellent sliding and wear behaviour, especially for lubrication, for all types of movements, medium sliding speeds and load capacity, good chemical resistance.

Materials     Lead Free  

Support material

Steel backing with tin-plated / copper plated

Intermediate layer

Sintered bronze powder

Sliding layer

PTFE with CaF2 and Fillers

Material properties

Specific load capacity static

250 [ N/mm² ]

Specific load capacity dynamic

140 [ N/mm² ] at low sliding speeds

Sliding speed

2,0 [ m/s ] ( 5 m/s oil lubricated)

Friction value

0,02 bis 0,20 [ µ ]( 0,05 oil lubricated)

Temperature strain

-195 bis +280 [ °C ]

Max. Pv -value

3,8 [ N/mm² x m/s ] ( 60 oil lubricated)

Tolerance details

Housing - Ø


Bushing-Inner - Ø after mounting


Shaft tolerance

f7 or h8

Shaft material

Steel, hardened or untempered, surface roughness Rz 4


DP4 Bearing is a dry sliding bearing with a PTFE sliding layer. Lubrication is therefore not necessary. But it is suitable for lubricated applications (such as hydraulic oil lubrication).

Standard Parts

dp4 cylindrical bush  dp4 flanged bush  dp4 flanged washer dp4 thrust washerdp4 strip
     Metric                                  Metric                                  Metric                                   Metric                                Metric


DP4 bushes - Metric SizeDP4 flanged bushes - Metric SizeDP4 flanged thrust washers-Metric SizeDP4 thrust washers -Metric Size
DP4 Strip -Metric Size