ML-1 Self-Lubricated Bearings

<< ML Sliding Bearings Family

Flanged cylindrical bearing ML-1 preview — ML-1 Flange

ML-1 bearings are unique composite bearings built with a woven/expanded bronze mesh embedded in PTFE (polytetrafluoroethylene). This combination offers several key advantages:

Lead-free and environmentally friendly: The solid lubricants used in the PTFE comply with the European Parliament's "ELV" directive 2000/53/Ec, making them a sustainable choice.
Low friction and high chemical resistance: Similar to pure PTFE, ML-1 bearings exhibit exceptional low friction and high resistance to various chemicals.
Enhanced mechanical strength: The metallic backing layer provides the bearings with the necessary strength and formability for diverse applications.
Excellent thermal conductivity: The composite structure of ML-1 bearings ensures efficient heat dissipation.

ML-1 bearings are available in various forms, including cylindrical bearings, flanged bearings, and washers, with thicknesses ranging from 0.75 mm to 1.50 mm (0.029 to 0.059 inches).

Operating Conditions

DRY Very Good
OIL Good
GREASE Good
WATER Fair
PROCESS
FLUID Fair

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composite layers of ML-1 bearing preview — composite layers of ML-1 bearing

Structure of the composite material

Layer	Average analyses of the material	Thickness of layer
Sliding layer	PTFE impregnated Bronze woven mesh	0,50 mm
Supporting shell	Low Carbon Steel DC 04 (EN 10139) Cu = 0,060 Max Mn = 0,15 ÷ 0,32 P = 0,025 Max S = 0,030 Max Al = 0,028 ÷ 0,070	0,250 ÷ 1,000 mm (Depending on final thickness required)
Protective layer	Sn or Zn (as per customer requirement)	> 1 μm

Characteristics

Extra-thick sliding layer with woven/expanded metal mesh support embedded with PTFE helps in edge loading
High calibration / sizing assembly to compensate higher tolerances of hinge hole and pin
Electrically conductive to enable EDP (Electro-Phoretic Deposition), also available with notches
Right fit according to requirement to achieve desired torque value
Noise-free / smooth operation in assembly

Technical Data

Maximum Specific Load Static	150-300 N/mm²
Maximum Specific Load Dynamic	100-170 N/mm²
Service Temperature Minimum	-200°C (-328°F)
Service Temperature Maximum	+180°C (+356°F)
Service Temperature Intermittent	+260°C (+500°F)
Maximum Speed Dry	1.0 m/s (200 fpm)
Coefficient of Friction Dry	0.07 - 0.17

#Structure of the composite material #Characteristics #Technical Data