grundfos data booklet

SP A, SP3Material specification for MMSmotorsSubmersible, rewindable motorsPos. Component Material EN202 Shaft Steel 1.0533202a Shaft ends Stainless steel 1.4460203/206Thrust bearingStationary/rotating part6"3.7 to 15 kW Hardenedsteel/EPDM12"6"18.5 to 37 kW Ceramic/carbon8" to 10"6" to 10" Carbon204 Bearing bushStainless12"steel/NBR205 Bearing housing, upper Cast iron EN-JL1040212 Diaphragm CR213 Motor end shield Cast iron EN-JL1040218 Motor sleeve Stainless steel 1.4301220 Motor cable EPDM226 Shaft sealCeramic/carbon235 Intermediate housing Cast iron EN-JL1040236 Bearing housing, lower Cast iron EN-JL1040N- and R-versions of MMS motors226202a220204205235202218Submersible motorsVersionPos. Component MaterialNREN EN202 Shaft Steel 1.0533 1.0533202a Shaft ends Stainless steel 1.4460 1.4462203/206204Thrust bearingStationary/rotating part:• 6" (3.7 to 15 kW)• 12"Thrust bearingStationary/rotating part:• 6" (18.5 to 37 kW)• 8" to 10"Bearing bush• 6" to 10"Bearing bush• 12"Hardenedsteel/EPDMCeramic/carbonCarbonStainlesssteel/NBR205 Bearing housing, upper Stainless steel 1.4401 1.4539212 Diaphragm CR213 Motor end shield Stainless steel 1.4401 1.4539218 Motor sleeve Stainless steel 1.4401 1.4539220 Motor cable EPDM226 Shaft sealCeramic/carbon235 Intermediate housing Stainless steel 1.4401 1.4539236 Bearing housing, lower Stainless steel 1.4401 1.4539202aFig. 14 MMS 10000236206203213212TM01 4985 040413