3 Inch Oil Lubricated Motors (50/60 Hz)

UO3 series 3-inch submersible motors – Ideal for water-wells of 3-inches or larger diameter Easy to repair or rewind as fitted with CSCR and CSR system, 3 Inch Oil Lubricated Motors are fitted with enameled copper wire (Class-H) for stator winding. For flawless sealing this submersible motor is fitted with a mechanical shaft seal of carbon and ceramic and an oil seal of Nitrile rubber. But that’s not all, pressure equalizing rubber diaphragm protects from the pressure and volume variation. Hence, 3 inch Oil Lubricated Motors are used for fountains, gardening/horticulture, pressure boosting units.

Submersible Motors
Description Tech Spec with Moc Downloads


Unnati Oil Submersible Motor Lubricated & Cooled by Non-Toxic, Eco- Friendly Fluid of high di-eletric Strength

Lubricated Ball Bearing for trouble Free Long lasting Operation.

Shaft Extension Made of Stainless Steel AISI 420

Mechanical Shaft Seal (Carbon/Ceramic) Provided.

High efficiency electrical design for lower operating cost.

Pressure Compensation diaphragm

All single Phase Motors require Control Box

Variety and Range

Flow Range : 1.74 to 3.60 M3/h

Head Range : 18 to 90 Meter

Ratings : 0.37 Kw to 1.10 Kw

Rating Speed : 2790 RPM

Technical Specification / Material of Construction


Upper and Lower Housing & motor base : Graded C.I Casting with Epoxy Paint

Stator Shell : Stainless steel

Motor Shaft : S.S 420

Winding Wire : Enameled dual coated copper with insulation class- H

Degree of Protection : IP 68

Max oil Temperature : 50’C

Nos. of Start per Hour : Max 20 at regular intervals

Voltage variation : +6% / -10% at rated voltage

High Dielectric strength non- toxic fluid

Max depth immersion : 100 meter

Motor Cable Length : 3.0mtr(3 core/ 4 core )

Mounting : Vertical / Horizontal

Single Phase motor – Capacitor Start Capacitor Run (CSCR) & Capacitor Start Run (CSR)

3” Oil Lubricated Motors 50 Hz