Motovario Worm Gear Reducers

Motovario NMRV & NMRV Power series is the perfect gearbox choice for applications requiring a reliable transmission system. The worm reducers offer an advanced option for specific market requirements in terms of providing high efficiency and flexibility.

A key factor with the NMRV / NMRVP range is its simplicity and ability to be paired with a wide range of power ratings, encouraging effective performance. The worm reducer allows for the combination of a range of compact helical input stages allowing extremely high ratios of up to 1000:1 to be achievable, as well as double worm gearbox amalgamations for up to 5000:1 reduction.

  • Worm gear reducers, combined and with pre-stage reduction unit Series: NMRVpower - NMRV - NRVpower - NRV - HW/NMRVpower – PC

    Motovario worm gear reducers are available in several different versions, to ensure specific application requirements can be met. The NMRV range covers gearbox sizes 025 – 050 and is fitted with a motor coupling. The bigger size range from 063-150, is known as the NMRV Power range, which is fitted with input bushens and flanges separately.

    The worm series also includes the NRV range which comes with an input shaft on the gearbox. For applications requiring high ratios, the HW pre-stage can be combined with the worm range to help achieve a solution for this.

  • Features

    • Sizes: 025 -030-040-050-063-075-090-105-110-130-150
    • Available versions: NMRV – fitted for motor coupling, NRV – with input shaft, NMRL – with torque limiter
    • Power up to 15 kW
    • Patented case with modern design
    • Aluminuium units are supplied complete with synthetic oil which allows universal position mounting, with no need to modify lubricant quantity. Moreover units without plugs reduce the risk of oil oxidation and contamination.
    • Reduction ratios between 5 and 100
    • Max torque 1.550 Nm and admissible radial loads max 16.500 N
    • Cases up to 105 in die-cast aluminium alloy and over 110 in G200 grey cast iron
    • Worm wheel: bronze Cu Sn12 Ni2 (UNI7013-10)
    • Ground worm profile ZI (UNI4760)
    • Excellent mechanical strength while being especially lightweight
    • Load capacity calculated to BS721-83 and verified according to Niemann
    • Size 030 and over are painted with RAL 5010 blue epoxy-polyester powder
    • PC, pre-stage reduction units available for motor power up to 2,2kW and size up to 090
    • Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRV+NRV, PC+NMRV
    • Automated manufacturing process not only guaratees fast service, but also reliability and quality
    • Options: torque arm, output flange, output shaft kit, cover, double extention high speed shaft

  • Worm gear reducers, combined with pre-stage reduction unit Series: SW - ISW – PC

    The SW reducer is a complementary product in relation to the Motovario NMRV gear reducer. The SW unit has a compact round smooth casing which is beneficial as it reduces the space the unit takes up as much as possible.

    The SW reducer is perfect for application systems that are limited in space, having a shaft height between 30 and 110mm. To ensure compatibility, the SW reducer has the same characteristics as the NMRV series, including gearing bearings and motor flanging.

  • Features

    • Sizes: 030-040-050-063-075-090-105-110-130-150
    • Available versions: SW – fitted for motor coupling, ISW – with input shaft, SWL – with torque limiter
    • Power up to 15 kW
    • Patented case with modern design. Up to size 105 feet or flange mounting, from size 110 universal mounting
    • Aluminum units are supplied complete with synthetic oil which allows universal position mounting, with no need to modify lubricant quantity. Moreover, units without plugs reduce the risk of oil oxidation and contamination.
    • Reduction ratios between 5 and 100
    • Max torque 1.550 Nm and admissible radial loads max 16.500 N
    • Cases up to 105 in die-cast aluminium alloy and over 110 in G200 grey cast iron
    • Worm wheel: bronze Cu Sn12 Ni2 (UNI7013-10)
    • Ground worm profile ZI (UNI4760)
    • Excellent mechanical strength while being especially lightweight
    • Load capacity calculated to BS721-83 and verified according to Niemann
    • Painted with RAL 5010 blue epoxy-polyester powder
    • PC, pre-stage reduction units available for motor power up to 2,2kW and size up to 090
    • Worm gear reducers are available with diffferent combinations: SW+SW, SW+ISW, PC+SW
    • Options: torque arm, feet mounting, output flange, output shaft kit, cover, double extention high speed shaft

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