Self-Lubricated Bearings TU-B

Bronze Backed Bimetal Bush


ID and OD Chamfers

S3 Co Ci β
0.75 0.5 ÷ 0.3 0.25 ÷ 0.2 30o ÷ 5o
1.00 0.6 ÷ 0.3 0.30 ÷ 0.2 30o ÷ 5o
1.50 0.7 ÷ 0.3 0.50 ÷ 0.3 30o ÷ 5o
S3 Co Ci β
2.00 1.2 ÷ 0.4 0.50 ÷ 0.3 30o ÷ 5o
2.50 1.8 ÷ 0.6 0.6 ÷ 0.3 45o ÷ 5o


Operating Performance



Oil lubricated

Very Good

Grease lubricated


Water lubricated


Process fluid lubricated


Structure of the material:

Layer Average analyses of the material Thickness of layer
Sliding layer
PTFE Coating 10µm
Intermediate layer
(Average Peak)
CuSn11 Sintered 200 ÷ 350µm
Supporting shell Bronze (CuSn8P) 0,50 ÷ 2,70 mm
(Depending on Dim. of the Bearing)

Good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions
Very good performance in lubricated applications
Good performance in greased applications
Suitable for linear, oscillating and rotating movements
Lead-free material compliant to EVL, WEEE, and RoHS specifications
Suitable for linear, oscillating and rotating movements

Bearing forms available in standard dimensions
Cylindrical bushes
Flanged bushes
Sliding plates

Bearing forms made to order:
Standard forms in special dimensions, thrust washers, flanged thrust washers, half-bearings, special shapes obtained by stamping or deep drawing, bearings with locating notches, lubricant holes and machined/stamped grooves

Civil engineering, marine and oshore equipment, other applications in water or in outdoor environments, etc.