MP Filtri Bell Housings and Couplings for Motors and Pumps

Official MP Filtri distributor
Warranty up to 12 months
Bell housings, couplings and fittings usually available
The same components as in our motor-pump units and PIISMA servo pumps

IEC 63–355Electric motor sizes for bell housings

IEC 80–355Electric motor sizes for flexible couplings

ISO 3019-2 and SAE J 744Pump flanges handled by the bell housings

Aluminium, cast iron, steelCoupling materials (SGEA, SGEG, SGES)

NBR or polyurethaneEGE and EGE RR elastic wheels

275–475 mmInspection hatch diameters (DIN 24339)

Prefer to talk to a technician? +39 0331 772410 · info@interfluid.net

MP Filtri LDC bell housings and couplings — **MP Filtri bell housings and couplings**LMG, LDC and LMS bell housings, SGE flexible couplings and accessories for the motor-pump unit.

MP Filtri bell-housings are made of die-cast aluminum and connect IEC electric motors (from size 63 to 355) with a wide range of hydraulic pumps.

There are multiple types available, including a silenced version:

LMG: monoblock series, dedicated to internal gear pumps
LMC and LDC: monoblock series, suitable for pumps with ISO3019 or SAE flanges
LMS and LDS: silenced monoblock series, capable of reducing noise levels by up to 5 dB
Assembled bell-housing: series suitable for pumps with ISO3019 or SAE flanges, easy to maintain

MP Filtri couplings allow for the safe transmission of power from an electric motor (from IEC size 80 to 355) to a hydraulic pump. They absorb shocks and vibrations, withstand load reversals, and can compensate for radial, angular, and axial misalignments.

They are made of aluminum, steel, or cast iron and are characterized by a flexible wheel that can be made of NBR 75 Sh or Polyurethane 95 Sh, depending on the application.

Furthermore, they all come with a tapped hole for secure fastening located at the keyway and can also be applied in potentially explosive areas.

The range of flexible couplings distributed by Interfluid includes:

SGEA series in aluminum
SGEG series in cast iron
SGES series in steel
SGDR series in steel (for internal combustion engines)

The most common MP Filtri accessories used by plant builders are:

Damping rings: perfect for damping vibrations and reducing the noise of the motor pump unit
Inspection portholes: placed on the side of tanks to facilitate internal cleaning of the bottom
Mounting feet: to support the motor pump unit if the motor is not equipped with feet
Damping rods: placed under electric motors or mounting feet to reduce vibrations

Technical data by series

From the MP Filtri Power Transmission catalogue (rev. 09/2018). Bell housing and coupling are chosen according to the IEC motor size, the pump and its flange.

Series	Type	Description
LMG	Bell housing	One-piece, for gear pumps and small piston pumps
LDC	Bell housing	Two pieces assembled and fixed with a screw kit, for gear, piston, vane and screw pumps
LMS	Silenced bell housing	With octagonal damper, to reduce vibration between pump and motor
Multi-components	Modular system	Motor base, intermediate adapter and pump flange for large pumps, in different combinations
SGEA, SGEG, SGES, SGDR	Flexible couplings	For hydraulic pumps and IEC electric motors: SGEA in aluminium, SGEG in cast iron, SGES and SGDR in steel
EGE, EGE RR	Elastic wheels	For power transmission: EGE in NBR, EGE RR in polyurethane
PDMA	Accessory	Mounting feet to support the motor-pump unit
MPDR	Accessory	Steel damping bars with NBR insert, to reduce vibration
ANMA	Accessory	Damping rings for vertical mounting of the motor-pump unit
Inspection hatches	Accessory	Diameters 275, 350, 400 and 475 mm, compliant with DIN 24339

Component	IEC motor sizes	Pump or shaft interface
Bell housings for gear pumps	IEC 63–225 (motor flange Ø140–450 mm)	European standard groups 0.5; 1; 2; 3; 3.5; 4. German Bosch standard ZB, ZF, ZG
Bell housings with ISO 3019-2 flange	IEC 80–355	Flanges from 50 to 200 (B2/B4)
Bell housings with SAE J 744 flange	IEC 80–355	From 50-2 (A-A) to 165-4 (E)
Aluminium couplings ENAB 46100	IEC 80–200	ISO 3019-2 shafts
Cast iron G25 UNI 5007 or carbon steel C40 couplings	IEC 80–355	ISO 3019-2, ANSI B92.1A 1976, DIN 5480, DIN 5481, DIN 5482 shafts

The complete compatibility tables by motor size and flange are in the Power Transmission catalogue. Send us motor and pump: a technician will identify the codes.

Couplings: features

100% shaft coverage
Noise reduction thanks to the insert cover
Elastic inserts in different materials: NBR or polyurethane
Materials: aluminium ENAB 46100, cast iron G25 UNI 5007, carbon steel C40
Shafts: ISO 3019-2, ANSI B92.1A 1976, DIN 5480, DIN 5481, DIN 5482

How to choose bell housing and coupling

MP Filtri calculation program: select pump manufacturer, family and model, motor poles and size, coupling material
From the program you can download the PDF datasheet or the DXF drawing
If the pump is not in the program, enter its dimensions to obtain the component codes
Or send us pump and motor: a technician will identify bell housing, coupling and accessories

Power transmission

Product type	Stock availability	Discover online availability
Bell-housings	✅ Usually available
Couplings	✅ Usually available
Accessories	✅ Usually available

Already a registered customer? Check the stock of MP Filtri bell housings, couplings and fittings on Fluid-Hub.net, with an extra 2% discount.

Frequently asked questions

What is a bell housing for and how do I choose one?

The bell housing is the structural component that couples the electric motor to the hydraulic pump. It is chosen according to the IEC motor size (63–355) and the pump flange: ISO 3019-2, SAE J 744 or the gear pump standards.

What is the difference between LMG, LDC and LMS bell housings?

LMG is a one-piece bell housing for gear pumps and small piston pumps. LDC is in two pieces fixed with a screw kit and fits gear, piston, vane and screw pumps. LMS is silenced, with an octagonal damper to reduce vibration between pump and motor.

Which flexible couplings are available?

The SGEA (aluminium), SGEG (cast iron), SGES and SGDR (steel) series for IEC 80–355 motors; aluminium goes up to IEC 200. The elastic wheels are EGE in NBR or EGE RR in polyurethane.

Which accessories can I order for the motor-pump unit?

PDMA mounting feet, MPDR damping bars, ANMA damping rings and inspection hatches of 275, 350, 400 and 475 mm according to DIN 24339.

Are you an official MP Filtri distributor, and how long does it take to receive price and availability?

Interfluid is an official MP Filtri distributor, with warranty up to 12 months. A technician will reply within 24 working hours. Bell housings, couplings and fittings are usually available.

Can't find the code you need?Send us the IEC motor size, pump and flange or the MP Filtri code to replace: a technician will identify bell housing, coupling and accessories.

Request price and availability

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