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40 Series Gear Motor, 1.25 cu in/rev, 2-Bolt SAE A Mounting Flange, 5/8 St.Keyed x 1.25 Long Shaft, SAE-12 Side Ports, Bi-Rotational

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Description & Features

Designed for durability and performance this gear motor boasts a die-cast aluminum alloy body with sintered metal gears and a hardened steel shaft. The 40 Series Gear Motor 1.25 cu in/rev 2-Bolt SAE A Mounting Flange 5/8 St.Keyed x 1.25 Long Shaft SAE-12 Side Ports Bi-Rotational is an efficient and reliable component suitable for various industrial applications.

With a displacement of 1.25 cu in/rev this motor is capable of handling a rated speed of up to 3000 RPM. The bi-rotational design features internal check valves facilitating pressure balance and contributing to a low noise level. The unit also includes Teflon impregnated sleeve bearings and Buna-N seals ensuring longevity and reduced maintenance.

For enhanced efficiency pressure-balanced loading plates and an improved gear tooth design are integrated. This motor is rated for a working pressure of 3000 PSI and can withstand a maximum shock pressure of 3500 PSI.

Equipped with SAE-12 side ports and a 2-bolt SAE A mounting flange the gear motor is easy to install making it a robust choice for demanding industrial environments.

MPN: C1EN36

Supplier Part Number: 40MH12DACSC

Specifications

Dimensions
6.06 in L x 5.133 in W x 4.92 in H
Grp Note
Ratings Based on Using Anti Wear Hydraulic Fluid
Grp Pressure Limit
Inlet: 3000 psi Rated Working Pressure, 3500 psi Maximum Shock Pressure. Outlet: Pressures over 250 psi Require a Case Drain Line be Installed
Housing Material
Aluminum
Model
40M012
Mounting Type
SAE A 2-Bolt Flange
Port Location
Side
Port Type
SAE-12 Side
Rotation Direction
Reversible
Seal Material
Nitrile
Series
40 Series
Shaft
5/8 in Straight Keyed x 1-1/4 in Long
Shaft Size
5/8 in Dia
Shaft Type
Keyed

Product Questions & Answers (2)

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Question by: Vince R on Jan 14, 2026, 9:17 PM
Is this motor okay for running hydraulic conveyors, or is it more for lighter duty?
Answer by: Customer Support on Jan 16, 2026, 6:02 AM
Designed for durability, this gear motor features a die-cast aluminum alloy body, sintered metal gears, and a hardened steel shaft, making it suitable for various industrial applications including hydraulic conveyors.
Question by: Rod H on Mar 3, 2026, 3:45 PM
outlet pressure on this thing, if it climbs past 250 PSI do I really need to run a case drain line, or is that just a recommendation they throw out there?
Answer by: Customer Support on Mar 5, 2026, 6:22 AM
That's a hard requirement, not a suggestion. Once outlet pressure exceeds 250 PSI on this motor, a case drain line has to be installed. Without it, you're pushing pressure back into the case with nowhere to go, and that'll work against the internal seals over time. The bi-rotational design does use internal check valves to balance case pressure back to the low pressure side, but that system isn't a substitute for a proper drain line when outlet pressure climbs above that threshold. Worth planning that into your hydraulic connections before you fire it up.

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