Explicit sourced limits only
Component Temperature-Limit Comparator
Compare one measured temperature with applicable lower and/or upper limits supplied from the exact product documentation or licensed standard. No generic material limit is selected by this page.
Numerical comparison
Component and method dependence
The removed page assigned one continuous/short-term value to broad labels such as “standard bearing”, NBR, FKM, PAO, lithium grease and insulation class, then declared an arbitrary green zone below 80%. Those values are not transferable across exact products and measurement definitions.
Сайтът SKF motor/generator bearing guide states that operating temperature can be limited by cage, grease and sealing-lip material and that selection guidance cannot replace application testing. The Parker O-Ring Handbook explains that temperature capability depends on compound formulation, medium, geometry, stress and time; even one polymer family can have different limits.
Current motor standard
IEC 60034-1:2026, fifteenth edition, replaced IEC 60034-1:2022 in March 2026 and covers rating and performance of rotating electrical machines within its scope. A thermal class value is not automatically a measured housing-temperature alarm; machine rating, duty, coolant/ambient, rise/hotspot allowances and prescribed measurement method must be applied.
Comparison only
“Within supplied interval” is not “safe”. Check uncertainty/calibration, sensor attachment/emissivity, thermal gradients and lag, transients, alarm delays, simultaneous pressure/load/speed/media limits, trends, shutdown procedure and all OEM/standard requirements. Never infer an internal raceway or winding hotspot from a fixed generic housing offset.
