MR-5 316 Self-Lubricated Bearings

<< MR-5 Sliding Bearings Family

MR-5 316 Technymon self-lubricated flange bearing

MR-5 316 Technymon self-lubricated flange bearing preview — MR-5 316 Flange E version

MR-5 Technymo Ball self-lubricated bearing — MR-316 ALC Ball E version

Flanged sliding bearing with aluminium supporting shell and red non-conductive sliding layer — MR-5 316 Flange D version

MR-5 316 bearings made with a composite material. This material consists of a special tape made from compounded PTFE wrapped around stainless steel supporting shell. The PTFE tape made from carbon and graphite, which give the bearings these properties: self-lubrication, noise isolation, and minimal play.

The MR-5 316 bearings come in two key versions:

Version E: with a high surface conductivity PTFE sliding layer
Version D: with a non-conductive PTFE sliding layer

MR-5 316 bearings are characterized by the use of stainless steel as the supporting shell.

MR-5 316 bearings come in various forms, including: Cylindrical bearings; Flanged bearings; Washers; Belts; Cast-to-size parts.

These bearings are available in standard thicknesses of 0.500 mm, 0.750 mm, and 1.000 mm.

Operating Conditions

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

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composite layers of MR-5 316 bearing preview — composite layers of MR-5 316 bearing

Structure of the composite material

Layer	Average analyses of the material	Thickness of layer
Sliding layer	PTFE Modified	0,150 ÷ 0,170 mm
Supporting shell	Stainless steel	0,250 ÷ 0,750 mm (Depending on final thickness required)
Protective layer	Sn or Zn (as per customer requirement)	> 1 μm

Characteristics

Thick sliding layer with uniformly distributed solid lubricants
Good calibration/sizing assembly (zero-clearance)
High surface conductivity with E version PTFE, not-conductive D version PTFE available with notches/dimples, to prevent paint bridge issues, 1Ω volume conductance can be achieved with proper surface contact
With right fit, uniform torque can be achieved at the required value
Thick PTFE layer helps in edge loading

Technical Data

Maximum Specific Load Static	60-200 N/mm² (8700-29000 psi)
Maximum Specific Load Dynamic	45-120 N/mm² (6540-17400 psi)
Service Temperature Minimum	-200°C (-328°F)
Service Temperature Maximum	+180°C (+356°F)
Service Temperature Intermittent	+260°C (+500°F)
Maximum Speed Dry	1.5 m/s (300 fpm)
Coefficient of Friction Dry	0.06 - 0.3
Maximum Dry Load Factor Continuous	1.8 N/mm² · m/s
Surface Resistivity E version PTFE	~10⁵Ω
Surface Resistivity D version PTFE	~10¹⁴Ω

#Structure of the composite material #Characteristics #Technical Data